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.
Published: 2026-10-06
Score: n/a
EPSS: n/a
KEV: No
AI Analysis

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Remediation

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History

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

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: Gitea

Published:

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

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

Link: CVE-2026-96580

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

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

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

Link: CVE-2026-96580

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses
  • CWE-400

    Uncontrolled Resource Consumption