What is CVE-2026-76561?

CVE-2026-76561 is a high-severity vulnerability in Red Hat Certificate System 9, classified under OS Command Injection. CVSS score: 7.2/10. Published 2026-09-08.

How severe is CVE-2026-76561?

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

RCE in Red Hat Certificate System 9

CVE-2026-76561

A flaw was found in Dogtag PKI, as used by FreeIPA's certificate authority component. The certificate profile import functionality does not fully validate uploaded profile content beyond the profile ID. An authenticated user with CA Administrator privileges can exploit Dogtag's ExternalProcessConstraint mechanism to execute arbitrary commands with attacker-controlled environment variables, achieving code execution as the pkiuser account.

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

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

secalert@redhat.com (x_refsource_REDHAT, vdb-entry)
secalert@redhat.com (x_refsource_REDHAT, issue-tracking)

Frequently asked questions

What is CVE-2026-76561?: CVE-2026-76561 is a high-severity vulnerability in Red Hat Certificate System 9, classified under OS Command Injection. CVSS score: 7.2/10. Published 2026-09-08.
How severe is CVE-2026-76561?: High severity. CVSS v3 base score is 7.2 out of 10.