CVE-2026-58425 Gitea CVE debrief

Who should care

Administrators and users of Gitea instances should be aware of this vulnerability and take steps to mitigate it. This includes updating to the latest version of Gitea and reviewing access controls for OAuth token introspection. Gitea instance administrators should verify their instances for potential unauthorized access to OAuth token metadata and restrict access to OAuth token introspection. Security teams should monitor for unauthorized access attempts and review compensating controls for exposed systems while remediation is scheduled and verified. Operators of Gitea instances should review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance, and plan vendor-supported updates or mitigations through normal change control where exposure is confirmed. Vulnerability management teams should track exceptions, retest remediated assets, and close the item only after evidence is documented. Platform security teams should check relevant monitoring, detection, and logs for exposed assets that need extra review. Asset inventory managers should confirm whether affected product deployments exist in managed environments and assign an owner for follow-up. Change management teams should review compensating controls for exposed systems while remediation is scheduled and verified, and ensure that updates are properly tested and validated before deployment. Source tracking and monitoring teams should review the CVE record and related advisories to validate affected scope and severity, and track the status of remediation efforts across the organization. Compensating control teams should review and implement additional controls to mitigate the vulnerability while remediation is pending, such as restricting access to OAuth token introspection or implementing additional monitoring and detection controls. Rollback and change window management teams should plan and execute changes to remediate the vulnerability, and ensure that changes are properly tested and validated before deployment. Security teams should also review and update their incident response plans to include procedures for responding to potential exploitation of this and

Technical summary

CVE-2026-58425 is a medium-severity vulnerability in Gitea's OAuth token introspection functionality. The vulnerability causes the server to return metadata of tokens issued to other clients, violating RFC 7662 section 4. This could potentially allow unauthorized parties to gain information about other clients' tokens. The vulnerability is addressed in Gitea version 1.27.0. Gitea versions prior to 1.27.0 are reportedly affected. The CVSS score is 4.3, with AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

Defensive priority

Organizations using Gitea should verify their instances for potential unauthorized access to OAuth token metadata.

Recommended defensive actions

• Verify Gitea instance vulnerability to CVE-2026-58425
• Update Gitea to version 1.27.0 or later
• Restrict access to OAuth token introspection
• Monitor for unauthorized access attempts
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed

Evidence notes

The CVE-2026-58425 record indicates a medium-severity vulnerability in Gitea's OAuth token introspection functionality. According to the NVD, the vulnerability allows for the return of metadata for tokens issued to other clients, violating RFC 7662 section 4. The CVSS score is 4.3, with AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N. Gitea versions prior to 1.27.0 are reportedly affected.

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.