CVE-2026-117677
Gitea Helm chart upload decompression denial of service
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.
Fixes and workarounds
Fix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: GiteaFix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: GiteaFix
gitea.dev (go): GitHub reports patched versions 28.3.0. Check the advisory for the affected release branch.
Source: GitHub GHSA-r6mh-qg79-rqj2Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| Gitea Gitea gitea.dev
|
≥ 0; < 28.3.0 (affected, semver)
Other versions: unaffected |
CNA: Gitea |
gitea.devgitea.dev
go |
<= 28.2.0 (affected, GitHub advisory range) | GitHub GHSA-r6mh-qg79-rqj2 |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
No CVSS assessment reported. An unscored record is not a low-severity determination.
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://github.com/go-gitea/gitea/security/advisories/GHSA-r6mh-qg79-rqj2CNA: Gitea · vendor-advisory
- https://github.com/go-gitea/gitea/pull/39942CNA: Gitea · patch
- https://github.com/go-gitea/gitea/pull/40085CNA: Gitea · patch
- https://blog.gitea.com/release-of-28.3.0/CNA: Gitea · release-notes
- https://github.com/go-gitea/gitea/releases/tag/v28.3.0CNA: Gitea · release-notes
- https://blog.gitea.com/release-of-28.3.0/88ee5874-cf24-4952-aea0-31affedb7ff2
- https://github.com/go-gitea/gitea/pull/3994288ee5874-cf24-4952-aea0-31affedb7ff2
- https://github.com/go-gitea/gitea/pull/4008588ee5874-cf24-4952-aea0-31affedb7ff2
- https://github.com/go-gitea/gitea/releases/tag/v28.3.088ee5874-cf24-4952-aea0-31affedb7ff2
- https://github.com/go-gitea/gitea/security/advisories/GHSA-r6mh-qg79-rqj288ee5874-cf24-4952-aea0-31affedb7ff2
- https://github.com/go-gitea/gitea/security/advisories/GHSA-r6mh-qg79-rqj2GitHub Security Advisories · advisory
For agents and automation
Read public disclosures for free as Markdown or JSON. Compatible browsers also expose native WebMCP tools to search disclosures, read this page, and discover API access.
Use the ontology-linked Cyber API with x402 pay per request, or a Y2 Pro or Elite API key with the intel:cyber scope.
Endpoints and access details
https://api.y2.dev/api/v2/cyber/cveshttps://api.y2.dev/api/v2/cyber/cves/{cveId}
A workspace owner or admin can create a Pro or Elite API key. Send Authorization: Bearer <Y2_API_KEY> from your trusted agent runtime.
For x402, omit Authorization and read the HTTP 402 payment challenge before signing a retry. Public browser tools do not make payments.