Vulnerability details
CVE-2026-96580
Gitea Gitea
Gitea Actions memory exhaustion through large static matrices
CVSS 3.1
7.5High
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.5High | 3.1 | CISA ADP / Vulnrichment (CISA-ADP) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Gitea | Gitea | v ≤ 1.27.3 | CVEProject cvelistV5 (CNA) |
References and advisories
4- https://github.com/go-gitea/gitea/security/advisories/GHSA-p3rv-cr5f-9gjh vendor-advisory
- https://github.com/go-gitea/gitea/pull/39295 patch
- https://blog.gitea.com/release-of-28.0.0/ release-notes
- https://github.com/go-gitea/gitea/releases/tag/v28.0.0 release-notes
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Details
- Published
- 2026-10-06
- Last updated
- 2026-10-07
- State
- Published
- Assigner (CNA)
- Gitea
Exploit prediction (EPSS)
0.35%
Probability of exploitation in 30 days
28.8%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-400Uncontrolled Resource Consumption