CVE-2026-53804
OTRS Community Edition OS Command Injection via PGP Configuration
Description
OTRS Community Edition contains an authenticated OS command injection vulnerability in the PGP encryption module that allows administrators to execute arbitrary operating-system commands by supplying crafted values for the PGP binary path and command options. Administrator-supplied configuration values are concatenated without sanitization into a shell command, enabling arbitrary command execution as the web server process user during normal ticket operations after the malicious configuration is deployed.
INFO
Published Date :
Aug. 20, 2026, 9:17 p.m.
Last Modified :
Aug. 21, 2026, 12:16 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-53804
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.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | MITRE-CVE | ||||
| CVSS 4.0 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Apply vendor patches or updates immediately.
- Review and sanitize all PGP module configuration inputs.
- Restrict web server process privileges.
- Implement input validation for configuration values.
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-2026-53804.
| URL | Resource |
|---|---|
| https://h00die-gr3y.github.io/research/cve-2026-53804/ | |
| https://www.vulncheck.com/advisories/otrs-community-edition-os-command-injection-via-pgp-configuration |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-53804 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-2026-53804
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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-53804 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-53804 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 Modified by [email protected]
Aug. 21, 2026
Action Type Old Value New Value Changed Affected [{'repo': 'https://github.com/Centuran/OTRS-Community-Edition', 'vendor': 'Centuran Consulting', 'product': 'OTRS Community Edition', 'versions': [{'status': 'affected', 'version': '0', 'versionType': 'semver', 'lessThanOrEqual': '6.0.41'}, {'status': 'affected', 'version': '0', 'versionType': 'git', 'lessThanOrEqual': '6357cdb89fe1dcc83a84fba14bd0f22898eea99a'}], 'packageURL': 'pkg:github/Centuran/OTRS-Community-Edition', 'defaultStatus': 'affected'}] [{'repo': 'https://github.com/Centuran/OTRS-Community-Edition', 'vendor': 'Centuran Consulting', 'product': 'OTRS Community Edition', 'versions': [{'status': 'affected', 'version': '0', 'versionType': 'semver', 'lessThanOrEqual': '6.0.41'}], 'packageURL': 'pkg:github/Centuran/OTRS-Community-Edition', 'defaultStatus': 'affected'}] -
New CVE Received by [email protected]
Aug. 20, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://github.com/Centuran/OTRS-Community-Edition', 'vendor': 'Centuran Consulting', 'product': 'OTRS Community Edition', 'versions': [{'status': 'affected', 'version': '0', 'versionType': 'semver', 'lessThanOrEqual': '6.0.41'}, {'status': 'affected', 'version': '0', 'versionType': 'git', 'lessThanOrEqual': '6357cdb89fe1dcc83a84fba14bd0f22898eea99a'}], 'packageURL': 'pkg:github/Centuran/OTRS-Community-Edition', 'defaultStatus': 'affected'}] Added Description OTRS Community Edition contains an authenticated OS command injection vulnerability in the PGP encryption module that allows administrators to execute arbitrary operating-system commands by supplying crafted values for the PGP binary path and command options. Administrator-supplied configuration values are concatenated without sanitization into a shell command, enabling arbitrary command execution as the web server process user during normal ticket operations after the malicious configuration is deployed. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-78 Added Reference https://h00die-gr3y.github.io/research/cve-2026-53804/ Added Reference https://www.vulncheck.com/advisories/otrs-community-edition-os-command-injection-via-pgp-configuration