CVE-2026-117677

UNKNOWN 0.0

Gitea Helm chart upload decompression denial of service

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

When parsing an uploaded Helm chart, Gitea decompressed the archive and read every tar entry while looking for `Chart.yaml` without limiting the decompressed size, and did so before the package size quota was checked; the quota only considers the compressed upload size. A user with package write access to an owner, for example their own account on an instance with open registration, could repeatedly upload small, highly compressed archives that make the server spend CPU time proportional to the decompressed size, degrading the availability of the Gitea instance. The issue does not allow code execution or data access.

CWE	CWE-400 CWE-409
Vendor	gitea
Product	gitea
Published	Nov 1, 2026

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Affected Versions

Gitea / Gitea

0 < 28.3.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/go-gitea/gitea/security/advisories/GHSA-r6mh-qg79-rqj2 github.com: https://github.com/go-gitea/gitea/pull/39942 github.com: https://github.com/go-gitea/gitea/pull/40085 blog.gitea.com: https://blog.gitea.com/release-of-28.3.0/ github.com: https://github.com/go-gitea/gitea/releases/tag/v28.3.0

Credits

🔍 https://github.com/skeletonsec 🔍 https://github.com/jisung-02 🔍 https://github.com/kewmine https://github.com/bircni