# CVE-2026-83493

pull_request_target workflows can be abused to exfiltrate repository secrets and tokens

- Page: https://www.vulneraibility.com/cve/CVE-2026-83493
- CVSS: 9.1
- Known exploited: not in CISA KEV as of our last sync
- CISA SSVC: exploitation none, automatable yes, technical impact total (assessed 2026-11-06)
- Weakness: CWE-829
- Published: 2026-11-06

## Affected

- distributed-workloads
- GitHub Actions 'pull_request_target' workflows
- Repositories using SNYK_TOKEN or default write tokens

## Impact

Remote attacker submits crafted PR to exfiltrate secrets (SNYK_TOKEN, default write token), hijack Snyk integration, and gain repo control.

## Action

Immediate action required

## Recommendation

Remove secrets from workflows, avoid pull_request_target for untrusted PRs, rotate tokens, apply vendor fixes when published

## References

- [other] https://access.redhat.com/security/cve/CVE-2026-83493
- [other] https://bugzilla.redhat.com/show_bug.cgi?id=2526349

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.