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.
History

Tue, 13 Oct 2026 15:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:gitea:gitea:*:*:*:*:*:*:*:*

Wed, 07 Oct 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 07 Oct 2026 01:30:00 +0000

Type Values Removed Values Added
First Time appeared Gitea
Gitea gitea
Vendors & Products Gitea
Gitea gitea

Tue, 06 Oct 2026 19:30:00 +0000

Type Values Removed Values Added
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.
Title Gitea Actions memory exhaustion through large static matrices
Weaknesses CWE-400
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Gitea

Published: 2026-10-06T19:25:33.619Z

Updated: 2026-10-07T20:09:31.410Z

Reserved: 2026-10-04T21:59:53.570Z

Link: CVE-2026-96580

cve-icon Vulnrichment

Updated: 2026-10-07T20:09:27.247Z

cve-icon NVD

Status : Analyzed

Published: 2026-10-06T20:17:35.600

Modified: 2026-10-13T15:36:06.190

Link: CVE-2026-96580

cve-icon Redhat

No data.