Withdrawn: this CVE is not a vulnerability
The assigning CNA withdrew CVE-2026-105301 on 21 October 2026, and it carries the Rejected state at CVE.org and NVD. It must not be treated as a live finding. Its pre-withdrawal severity, score and exploitability are withheld below; the record itself is kept because withdrawals are reversible and because the reject reason is the correction worth publishing.
CVE-2026-105301
Keycloak-services: keycloak-services: blind ssrf via x.509 authenticator fetching attacker-controlled crl-dp/ocsp urls
Description
Rejected reason: This candidate was rejected after further investigation determined that it is not a security vulnerability. The client certificate chain is validated during mTLS negotiation at the TLS layer or reverse proxy before Keycloak processes CRL Distribution Point or OCSP URLs, so only certificates issued by a CA explicitly trusted by the administrator can trigger these requests.
INFO
Published Date :
Oct. 5, 2026, 6:16 a.m.
Last Modified :
Oct. 21, 2026, 3:17 p.m.
Remotely Exploit :
—
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-105301
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | 53f830b8-0a3f-465b-8143-3b8a9948e749 | ||||
| CVSS 3.1 | MEDIUM | MITRE-CVE | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-105301 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-105301 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 Rejected by [email protected]
Oct. 21, 2026
Action Type Old Value New Value -
CVE Modified by [email protected]
Oct. 21, 2026
Action Type Old Value New Value Changed Description A flaw was found in the X.509 client-certificate authenticator of Keycloak, a solution for identity and access management. The issue occurs when the server is configured to check certificate revocation using CRL Distribution Points or OCSP. An attacker can provide a specially crafted certificate that points to a malicious server, causing Keycloak to make unauthorized outbound requests to internal or external endpoints before the certificate is fully validated. This can lead to a blind server-side request forgery (SSRF) attack. Rejected reason: This candidate was rejected after further investigation determined that it is not a security vulnerability. The client certificate chain is validated during mTLS negotiation at the TLS layer or reverse proxy before Keycloak processes CRL Distribution Point or OCSP URLs, so only certificates issued by a CA explicitly trusted by the administrator can trigger these requests. Removed CVSS V3.1 Red Hat, Inc.: AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N Removed CVSS V3.1 nvd-ai-agent-0.4.0-gemma-4-31B-it: AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N Removed CWE Red Hat, Inc.: CWE-918 Removed CWE nvd-ai-agent-0.4.0-gemma-4-31B-it: CWE-918 Removed CPE Configuration OR *cpe:2.3:a:redhat:build_of_keycloak:*:*:*:*:*:*:*:* Added Affected Affected value removed. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/105xxx/CVE-2026-105301.json">CVE-2026-105301</a> Removed Reference Red Hat, Inc.: https://access.redhat.com/security/cve/CVE-2026-105301 Removed Reference Red Hat, Inc.: https://bugzilla.redhat.com/show_bug.cgi?id=2545797 Removed Reference nvd-ai-agent-0.4.0-gemma-4-31B-it: https://access.redhat.com/security/cve/CVE-2026-105301 Removed Reference nvd-ai-agent-0.4.0-gemma-4-31B-it: https://bugzilla.redhat.com/show_bug.cgi?id=2545797 Removed Reference Type nvd-ai-agent-0.4.0-gemma-4-31B-it: https://access.redhat.com/security/cve/CVE-2026-105301 Types: Vendor Advisory Removed Reference Type nvd-ai-agent-0.4.0-gemma-4-31B-it: https://bugzilla.redhat.com/show_bug.cgi?id=2545797 Types: Issue Tracking, Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Oct. 05, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-105301', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-10-05T13:07:00.467791Z'} -
New CVE Received by [email protected]
Oct. 05, 2026
Action Type Old Value New Value Added Description A flaw was found in the X.509 client-certificate authenticator of Keycloak, a solution for identity and access management. The issue occurs when the server is configured to check certificate revocation using CRL Distribution Points or OCSP. An attacker can provide a specially crafted certificate that points to a malicious server, causing Keycloak to make unauthorized outbound requests to internal or external endpoints before the certificate is fully validated. This can lead to a blind server-side request forgery (SSRF) attack. Added CVSS V3.1 AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N Added CWE CWE-918 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/105xxx/CVE-2026-105301.json">CVE-2026-105301</a> Added Reference https://access.redhat.com/security/cve/CVE-2026-105301 Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2545797