What is CVE-2026-53804?

CVE-2026-53804 is a high-severity vulnerability in Centuran Consulting Otrs Community Edition, classified under OS Command Injection. CVSS score: 7.2/10. Published 2026-08-20.

How severe is CVE-2026-53804?

High severity. CVSS v3 base score is 7.2 out of 10.

RCE in Centuran Consulting Otrs Community Edition

CVE-2026-53804

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.

Vulnerability class: Command Injection (OS Command Injection)

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Centuran Consulting Otrs Community Edition

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

disclosure@vulncheck.com (technical-description, exploit)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-53804?: CVE-2026-53804 is a high-severity vulnerability in Centuran Consulting Otrs Community Edition, classified under OS Command Injection. CVSS score: 7.2/10. Published 2026-08-20.
How severe is CVE-2026-53804?: High severity. CVSS v3 base score is 7.2 out of 10.