Widely used GitHub Actions; fork PRs can trigger arbitrary code execution and steal secrets across many orgs.
CVE-2026-22869
RCE via untrusted fork PRs in GitHub Actions workflows.
Is CVE-2026-22869 being exploited?
Not confirmed. CVE-2026-22869 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 0.62% probability of exploitation in the next 30 days.
How severe is CVE-2026-22869?
CVE-2026-22869 is rated High with a CVSS score of 8.9. 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-2026-22869?
Yes. A fix has been recorded for CVE-2026-22869. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-22869 affect?
CVE-2026-22869 affects GitHub Actions, GitHub repository workflows (.github/workflows). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-22869?
Avoid pull_request_target; gate with checks; rotate secrets; limit permissions.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote code execution and credential theft via pull_request_target with untrusted PR code in workflows.
Immediate action required