CVE-2026-4868
Authenticated GitLab EE user can impersonate another user in Duo AI workflows.
Is CVE-2026-4868 being exploited?
Not confirmed. CVE-2026-4868 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.34% probability of exploitation in the next 30 days.
How severe is CVE-2026-4868?
CVE-2026-4868 is rated High with a CVSS score of 8.2. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-4868?
Yes. A fix has been recorded for CVE-2026-4868. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-4868 affect?
CVE-2026-4868 affects GitLab EE 18.8.x <18.10.7; 18.11.x <18.11.4; 19.0.x <19.0.1. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-4868?
Upgrade to fixed versions (18.10.7+, 18.11.4+, 19.0.1+)
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Impersonation of Duo AI workflows; attacker can run/modify workflows as another user.
Patch when possible
- affected>= 18.8 and < 18.10.7
- affected>= 18.11 and < 18.11.4
- affected>= 19.0 and < 19.0.1
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.