Gitea Actions memory exhaustion through large static matrices
Summary
| CVE | CVE-2026-96580 |
|---|---|
| State | PUBLISHED |
| Assigner | Gitea |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-10-06 20:17:35 UTC |
| Updated | 2026-10-06 20:17:35 UTC |
| Description | Gitea expanded a workflow's static `strategy.matrix` into its full Cartesian product without a size limit when creating a run, before the fork pull request approval gate applied. A user who can open a pull request from a fork could submit a small workflow file whose matrix expands to a very large number of jobs, consuming server memory and potentially terminating the Gitea process. No runner is required. Static matrices above 256 combinations are now rejected before expansion. |
Risk And Classification
Problem Types: CWE-400 | CWE-400 CWE-400: Uncontrolled Resource Consumption
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| github.com/go-gitea/gitea/releases/tag/v28.0.0 | 88ee5874-cf24-4952-aea0-31affedb7ff2 | github.com | |
| github.com/go-gitea/gitea/pull/39295 | 88ee5874-cf24-4952-aea0-31affedb7ff2 | github.com | |
| blog.gitea.com/release-of-28.0.0 | 88ee5874-cf24-4952-aea0-31affedb7ff2 | blog.gitea.com | |
| github.com/go-gitea/gitea/security/advisories/GHSA-p3rv-cr5f-9gjh | 88ee5874-cf24-4952-aea0-31affedb7ff2 | github.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: https://github.com/smoke-wolf (en)
CNA: https://github.com/Kushalkhemka (en)
CNA: https://github.com/mayank-jangid-moon (en)
CNA: https://github.com/skigeek16 (en)
CNA: https://github.com/opensec-intelligence (en)
CNA: https://github.com/silverwind (en)
CNA: https://github.com/bircni (en)
There are currently no legacy QID mappings associated with this CVE.