9.4
CRITICAL
CVSS 3.1
CVE-2026-33454
Apache Camel: Inbound Header Filter Missing in MailHeaderFilterStrategy Allows Remote Code Execution via MIME Header Injection (CVE-2025-30177 Variant)
Overview
Description
The Camel-Mail component is vulnerable to Camel message header injection. The custom header filter strategy used by the component (MailHeaderFilterStrategy) only filters the 'out' direction via setOutFilterStartsWith, while it does not configure the 'in' direction via setInFilterStartsWith. As a result, when a Camel application consumes mail through camel-mail (for example via from(\"imap://...\") or from(\"pop3://...\")) the inbound filter check is skipped and Camel-prefixed MIME headers are mapped unfiltered into the Exchange. An attacker who can deliver an email to a mailbox monitored by such a consumer can inject Camel-specific headers that, for some Camel components downstream of the mail consumer (such as camel-bean, camel-exec, or camel-sql), can alter the behaviour of the route. This is the same pattern that was previously addressed in camel-undertow (CVE-2025-30177) and the broader incoming-header filter (CVE-2025-27636 and CVE-2025-29891). This issue affects Apache Camel: from 3.0.0 before 4.14.6, from 4.15.0 before 4.18.1. Users are recommended to upgrade to version 4.19.0, which fixes the issue. If users are on the 4.18.x LTS releases stream, then they are suggested to upgrade to 4.18.1. If users are on the 4.14.x LTS releases stream, then they are suggested to upgrade to 4.14.6.
Details
INFO
Published Date :
April 27, 2026, 10:16 a.m.
Last Modified :
Oct. 26, 2026, 10:10 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework
for assessing the severity of vulnerabilities in software and systems.
We collect and displays CVSS scores from various sources for each CVE.
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | CRITICAL | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | ||||
| CVSS 3.1 | CRITICAL | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c |
Solution
Upgrade Apache Camel to a patched version to fix mail header injection vulnerability.
- Upgrade to Apache Camel version 4.19.0 or later.
- For 4.18.x LTS, upgrade to 4.18.1.
- For 4.14.x LTS, upgrade to 4.14.6.
Public PoC/Exploit Available at Github
CVE-2026-33454 has a 2 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-33454.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-33454 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-33454
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
Python
Updated: 6 months, 2 weeks ago
0 stars
0 fork
0 watcher
Born at : April 28, 2026, 8:32 p.m.
This repo has been linked 15 different CVEs too.
📡 PoC auto collect from GitHub. ⚠️ Be careful Malware.
security cve exploit poc vulnerability
Updated: 3 months, 3 weeks ago
7922 stars
1275 fork
1275 watcher
Born at : Dec. 8, 2019, 1:03 p.m.
This repo has been linked 646 different CVEs too.
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-33454 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-33454 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Translated by [email protected]
Oct. 26, 2026
Action Type Old Value New Value Changed Translation Title: Apache Camel de Apache Software Foundation, Description: El componente Camel-Mail es vulnerable a la inyección de encabezados de mensajes de Camel. La estrategia de filtro de encabezados personalizada utilizada por el componente (MailHeaderFilterStrategy) solo filtra la dirección ’out’ a través de setOutFilterStartsWith, mientras que no configura la dirección ’in’ a través de setInFilterStartsWith. Como resultado, cuando una aplicación Camel consume correo a través de camel-mail (por ejemplo, a través de from(’imap://...’) o from(’pop3://...’)) se omite la verificación del filtro de entrada y los encabezados MIME con prefijo Camel se mapean sin filtrar en el Exchange. Un atacante que puede entregar un correo electrónico a un buzón monitoreado por dicho consumidor puede inyectar encabezados específicos de Camel que, para algunos componentes Camel posteriores al consumidor de correo (como camel-bean, camel-exec o camel-sql), pueden alterar el comportamiento de la ruta. Este es el mismo patrón que se abordó previamente en camel-undertow (CVE-2025-30177) y el filtro de encabezado de entrada más amplio (CVE-2025-27636 y CVE-2025-29891). Este problema afecta a Apache Camel: desde 3.0.0 antes de 4.14.6, desde 4.15.0 antes de 4.18.1. Se recomienda a los usuarios actualizar a la versión 4.19.0, que corrige el problema. Si los usuarios están en la rama de versiones LTS 4.18.x, se les sugiere actualizar a 4.18.1. Si los usuarios están en la rama de versiones LTS 4.14.x, se les sugiere actualizar a 4.14.6. Title: Apache Camel de Apache Software Foundation, Description: El componente Camel-Mail es vulnerable a la inyección de encabezados de mensajes de Camel. La estrategia de filtro de encabezados personalizada utilizada por el componente (MailHeaderFilterStrategy) solo filtra la dirección ’out’ a través de setOutFilterStartsWith, mientras que no configura la dirección ’in’ a través de setInFilterStartsWith. Como resultado, cuando una aplicación Camel consume correo a través de camel-mail (por ejemplo, a través de from(’imap://...’) o from(’pop3://...’)) se omite la verificación del filtro de entrada y los encabezados MIME con prefijo Camel se mapean sin filtrar en el Exchange. Un atacante que puede entregar un correo electrónico a un buzón monitoreado por dicho consumidor puede inyectar encabezados específicos de Camel que, para algunos componentes Camel posteriores al consumidor de correo (como camel-bean, camel-exec o camel-sql), pueden alterar el comportamiento de la ruta. Este es el mismo patrón que se abordó previamente en camel-undertow (CVE-2025-30177) y el filtro de encabezado de entrada más amplio (CVE-2025-27636 y CVE-2025-29891). Este problema afecta a Apache Camel: desde 3.0.0 antes de 4.14.6, desde 4.15.0 antes de 4.18.1. Se recomienda a los usuarios actualizar a la versión 4.19.0, que corrige el problema. Si los usuarios están en la rama de versiones LTS 4.18.x, se les sugiere actualizar a 4.18.1. Si los usuarios están en la rama de versiones LTS 4.14.x, se les sugiere actualizar a 4.14.6. -
CVE Translated by [email protected]
Oct. 26, 2026
Action Type Old Value New Value Added Translation Title: Apache Camel de Apache Software Foundation, Description: El componente Camel-Mail es vulnerable a la inyección de encabezados de mensajes de Camel. La estrategia de filtro de encabezados personalizada utilizada por el componente (MailHeaderFilterStrategy) solo filtra la dirección ’out’ a través de setOutFilterStartsWith, mientras que no configura la dirección ’in’ a través de setInFilterStartsWith. Como resultado, cuando una aplicación Camel consume correo a través de camel-mail (por ejemplo, a través de from(’imap://...’) o from(’pop3://...’)) se omite la verificación del filtro de entrada y los encabezados MIME con prefijo Camel se mapean sin filtrar en el Exchange. Un atacante que puede entregar un correo electrónico a un buzón monitoreado por dicho consumidor puede inyectar encabezados específicos de Camel que, para algunos componentes Camel posteriores al consumidor de correo (como camel-bean, camel-exec o camel-sql), pueden alterar el comportamiento de la ruta. Este es el mismo patrón que se abordó previamente en camel-undertow (CVE-2025-30177) y el filtro de encabezado de entrada más amplio (CVE-2025-27636 y CVE-2025-29891). Este problema afecta a Apache Camel: desde 3.0.0 antes de 4.14.6, desde 4.15.0 antes de 4.18.1. Se recomienda a los usuarios actualizar a la versión 4.19.0, que corrige el problema. Si los usuarios están en la rama de versiones LTS 4.18.x, se les sugiere actualizar a 4.18.1. Si los usuarios están en la rama de versiones LTS 4.14.x, se les sugiere actualizar a 4.14.6. -
CVE Modified by 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Jul. 15, 2026
Action Type Old Value New Value Changed Affected [{'cpes': ['cpe:/a:redhat:apache_camel_quarkus:3.27'], 'vendor': 'Red Hat', 'product': 'Red Hat Build of Apache Camel 4.14 for Quarkus 3.27', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:apache_camel_spring_boot:4.18'], 'vendor': 'Red Hat', 'product': 'Red Hat build of Apache Camel 4.18.1 for Spring Boot 3.5.14', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:camel_quarkus:3'], 'vendor': 'Red Hat', 'product': 'Red Hat build of Apache Camel 4 for Quarkus 3', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:apache_camel_hawtio:4'], 'vendor': 'Red Hat', 'product': 'Red Hat build of Apache Camel - HawtIO 4', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:camel_spring_boot:4'], 'vendor': 'Red Hat', 'product': 'Red Hat build of Apache Camel for Spring Boot 4', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:jboss_fuse:7'], 'vendor': 'Red Hat', 'product': 'Red Hat Fuse 7', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:jboss_enterprise_application_platform:7'], 'vendor': 'Red Hat', 'product': 'Red Hat JBoss Enterprise Application Platform 7', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:jboss_enterprise_application_platform:8'], 'vendor': 'Red Hat', 'product': 'Red Hat JBoss Enterprise Application Platform 8', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:jbosseapxp'], 'vendor': 'Red Hat', 'product': 'Red Hat JBoss Enterprise Application Platform Expansion Pack', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:jboss_enterprise_bpms_platform:7'], 'vendor': 'Red Hat', 'product': 'Red Hat Process Automation 7', 'defaultStatus': 'unaffected'}] [{'cpes': ['cpe:/a:redhat:apache_camel_quarkus:3.27'], 'vendor': 'Red Hat', 'product': 'Red Hat Build of Apache Camel 4.14 for Quarkus 3.27', 'packageName': 'camel-mail', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:apache_camel_spring_boot:4.18'], 'vendor': 'Red Hat', 'product': 'Red Hat build of Apache Camel 4.18.1 for Spring Boot 3.5.14', 'packageName': 'camel-mail', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:camel_quarkus:3'], 'vendor': 'Red Hat', 'product': 'Red Hat build of Apache Camel 4 for Quarkus 3', 'packageName': 'camel-bean', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:camel_quarkus:3'], 'vendor': 'Red Hat', 'product': 'Red Hat build of Apache Camel 4 for Quarkus 3', 'packageName': 'camel-mail', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:camel_quarkus:3'], 'vendor': 'Red Hat', 'product': 'Red Hat build of Apache Camel 4 for Quarkus 3', 'packageName': 'camel-sql', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:camel_spring_boot:4'], 'vendor': 'Red Hat', 'product': 'Red Hat build of Apache Camel for Spring Boot 4', 'packageName': 'camel-bean', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:camel_spring_boot:4'], 'vendor': 'Red Hat', 'product': 'Red Hat build of Apache Camel for Spring Boot 4', 'packageName': 'camel-sql', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:apache_camel_hawtio:4'], 'vendor': 'Red Hat', 'product': 'Red Hat build of Apache Camel - HawtIO 4', 'packageName': 'camel-bean', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:jboss_fuse:7'], 'vendor': 'Red Hat', 'product': 'Red Hat Fuse 7', 'packageName': 'camel-bean', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:jboss_fuse:7'], 'vendor': 'Red Hat', 'product': 'Red Hat Fuse 7', 'packageName': 'camel-mail', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:jboss_fuse:7'], 'vendor': 'Red Hat', 'product': 'Red Hat Fuse 7', 'packageName': 'camel-sql', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:jboss_enterprise_application_platform:7'], 'vendor': 'Red Hat', 'product': 'Red Hat JBoss Enterprise Application Platform 7', 'packageName': 'camel-bean', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:jboss_enterprise_application_platform:8'], 'vendor': 'Red Hat', 'product': 'Red Hat JBoss Enterprise Application Platform 8', 'packageName': 'camel-bean', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:jboss_enterprise_application_platform:8'], 'vendor': 'Red Hat', 'product': 'Red Hat JBoss Enterprise Application Platform 8', 'packageName': 'camel-mail', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:jboss_enterprise_application_platform:8'], 'vendor': 'Red Hat', 'product': 'Red Hat JBoss Enterprise Application Platform 8', 'packageName': 'camel-sql', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:jbosseapxp'], 'vendor': 'Red Hat', 'product': 'Red Hat JBoss Enterprise Application Platform Expansion Pack', 'packageName': 'camel-bean', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:jbosseapxp'], 'vendor': 'Red Hat', 'product': 'Red Hat JBoss Enterprise Application Platform Expansion Pack', 'packageName': 'camel-mail', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:jbosseapxp'], 'vendor': 'Red Hat', 'product': 'Red Hat JBoss Enterprise Application Platform Expansion Pack', 'packageName': 'camel-sql', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:jboss_enterprise_bpms_platform:7'], 'vendor': 'Red Hat', 'product': 'Red Hat Process Automation 7', 'packageName': 'camel-sql', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'unaffected'}] -
CVE Modified by 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Jun. 27, 2026
Action Type Old Value New Value Added Affected [{'cpes': ['cpe:/a:redhat:apache_camel_quarkus:3.27'], 'vendor': 'Red Hat', 'product': 'Red Hat Build of Apache Camel 4.14 for Quarkus 3.27', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:apache_camel_spring_boot:4.18'], 'vendor': 'Red Hat', 'product': 'Red Hat build of Apache Camel 4.18.1 for Spring Boot 3.5.14', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:camel_quarkus:3'], 'vendor': 'Red Hat', 'product': 'Red Hat build of Apache Camel 4 for Quarkus 3', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:apache_camel_hawtio:4'], 'vendor': 'Red Hat', 'product': 'Red Hat build of Apache Camel - HawtIO 4', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:camel_spring_boot:4'], 'vendor': 'Red Hat', 'product': 'Red Hat build of Apache Camel for Spring Boot 4', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:jboss_fuse:7'], 'vendor': 'Red Hat', 'product': 'Red Hat Fuse 7', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:jboss_enterprise_application_platform:7'], 'vendor': 'Red Hat', 'product': 'Red Hat JBoss Enterprise Application Platform 7', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:jboss_enterprise_application_platform:8'], 'vendor': 'Red Hat', 'product': 'Red Hat JBoss Enterprise Application Platform 8', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:jbosseapxp'], 'vendor': 'Red Hat', 'product': 'Red Hat JBoss Enterprise Application Platform Expansion Pack', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/a:redhat:jboss_enterprise_bpms_platform:7'], 'vendor': 'Red Hat', 'product': 'Red Hat Process Automation 7', 'defaultStatus': 'unaffected'}] Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L Added CWE CWE-1173 Added Reference https://access.redhat.com/errata/RHSA-2026:17668 Added Reference https://access.redhat.com/errata/RHSA-2026:19835 Added Reference https://access.redhat.com/security/cve/CVE-2026-33454 Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2463181 Added Reference https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33454.json -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-33454', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-04-27T14:56:56.696569Z'} -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Apache Software Foundation', 'product': 'Apache Camel', 'versions': [{'status': 'affected', 'version': '3.0.0', 'lessThan': '4.14.6', 'versionType': 'semver'}, {'status': 'affected', 'version': '4.15.0', 'lessThan': '4.18.1', 'versionType': 'semver'}], 'packageName': 'org.apache.camel:camel-mail', 'collectionURL': 'https://repo.maven.apache.org/maven2', 'defaultStatus': 'unaffected'}] -
Initial Analysis by [email protected]
Apr. 28, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:apache:camel:*:*:*:*:*:*:*:* versions from (including) 3.0.0 up to (excluding) 4.14.6 *cpe:2.3:a:apache:camel:*:*:*:*:*:*:*:* versions from (including) 4.15.0 up to (excluding) 4.18.1 Added Reference Type Apache Software Foundation: https://camel.apache.org/security/CVE-2026-33454.html Types: Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Apr. 27, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L -
New CVE Received by [email protected]
Apr. 27, 2026
Action Type Old Value New Value Added Description The Camel-Mail component is vulnerable to Camel message header injection. The custom header filter strategy used by the component (MailHeaderFilterStrategy) only filters the 'out' direction via setOutFilterStartsWith, while it does not configure the 'in' direction via setInFilterStartsWith. As a result, when a Camel application consumes mail through camel-mail (for example via from(\"imap://...\") or from(\"pop3://...\")) the inbound filter check is skipped and Camel-prefixed MIME headers are mapped unfiltered into the Exchange. An attacker who can deliver an email to a mailbox monitored by such a consumer can inject Camel-specific headers that, for some Camel components downstream of the mail consumer (such as camel-bean, camel-exec, or camel-sql), can alter the behaviour of the route. This is the same pattern that was previously addressed in camel-undertow (CVE-2025-30177) and the broader incoming-header filter (CVE-2025-27636 and CVE-2025-29891). This issue affects Apache Camel: from 3.0.0 before 4.14.6, from 4.15.0 before 4.18.1. Users are recommended to upgrade to version 4.19.0, which fixes the issue. If users are on the 4.18.x LTS releases stream, then they are suggested to upgrade to 4.18.1. If users are on the 4.14.x LTS releases stream, then they are suggested to upgrade to 4.14.6. Added CWE CWE-502 Added Reference https://camel.apache.org/security/CVE-2026-33454.html
EPSS is a daily estimate of the probability of exploitation activity
being observed over the next 30 days. Following chart shows the EPSS
score history of the vulnerability.