CVE-2026-89430 Gitea CVE debrief

Who should care

Gitea administrators and users with repository access should be aware of this vulnerability, as it allows SSRF attacks and forced-push repository contents to internal Git services. Affected operators, platform administrators, vulnerability-management teams, and security teams should verify Gitea versions, apply patches, restrict repository access, and monitor for suspicious activity to mitigate risks. This vulnerability impacts Gitea deployments,

Why it matters

This vulnerability allows administrators with repository access to conduct SSRF attacks and force-push repository contents to internal Git services, potentially leading to security breaches.

• Potential SSRF attacks on internal Git services
• Forced-push of repository contents to internal Git hosts
• Verification of Gitea version and patch application
• Monitoring for suspicious activity

Technical summary

The Gitea push mirror feature did not validate the remote address during synchronization, allowing SSRF attacks and forced writes to internal Git hosts. A user with administrator access to a repository could aim push mirror synchronization at internal Git services and force-push the repository's contents to them. This vulnerability impacts Gitea deployments, particularly those with exposed or internet-facing instances, and requires verification of Gitea version and patch application to mitigate risks. The issue highlights the need for

Defensive priority

Verify Gitea version and apply patches; restrict repository access; monitor for suspicious activity

Recommended defensive actions

• Verify Gitea version and apply patches
• Restrict repository access
• Monitor for suspicious activity
• Review compensating controls for exposed systems
• Check relevant monitoring, detection, and logs for exposed assets
• Track exceptions and retest remediated assets
• Plan vendor-supported updates or mitigations through normal change control

Evidence notes

The CVE record and source item provide details on the vulnerability, but affected versions and remediation require verification from official sources. Gitea administrators should consult the official advisory and CVE record to validate affected scope, severity, and vendor guidance. Evidence of exposure includes potential SSRF attacks on internal Git services and forced-push of repository contents to internal Git hosts. Defenders should verify Gitea version and patch application, monitor for suspicious activity, and review compensating

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.