CVE-2026-117677Gitea Helm chart upload decompression denial of service

Descripción

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.

Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.

Productos y versiones afectados

Referencias y parches

• GitHub Security Advisory GHSA-r6mh-qg79-rqj2 vendor-advisory
• Fix: go-gitea/gitea pull request #39942 patch
• Fix backport to release/v28: go-gitea/gitea pull request #40085 patch
• Gitea 28.3.0 release announcement release-notes
• go-gitea/gitea v28.3.0 release release-notes