CVE-2026-60021: DoS

Description

Gitea's initial GitLab migration version probe uses an HTTP client without a timeout and does not attach the migration task's cancellation context. An authenticated user who can start migrations can target an attacker-controlled server that keeps the response open indefinitely. The request continues after task cancellation and can exhaust the migration worker pool, preventing other migrations from progressing.

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Weakness Type (CWE)

CWE-400 Uncontrolled Resource Consumption

References

Other References

https://blog.gitea.com/release-of-1.27.3/ https://github.com/go-gitea/gitea/pull/39023 https://github.com/go-gitea/gitea/pull/39035 https://github.com/go-gitea/gitea/releases/tag/v1.27.3 https://github.com/go-gitea/gitea/security/advisories/GHSA-5952-x23q-p23f

Frequently Asked Questions

What is CVE-2026-60021? +

Gitea's initial GitLab migration version probe uses an HTTP client without a timeout and does not attach the migration task's cancellation context. An authenticated user who can start migrations can target an attacker-controlled server that keeps the response open indefinitely. The request continues after task cancellation and can exhaust the migration worker pool, preventing other migrations from progressing.

How do I check if I'm vulnerable to CVE-2026-60021? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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