A repository's external issue tracker regular expression containing alternating capture groups could produce invalid slice indexes when Gitea rendered issue references, causing a runtime panic that terminated the Gitea process. A user who can edit a repository's external issue tracker settings could make any later rendering of matching content, such as viewing a README, crash the instance for all users.

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History

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

Type Values Removed Values Added
Description A repository's external issue tracker regular expression containing alternating capture groups could produce invalid slice indexes when Gitea rendered issue references, causing a runtime panic that terminated the Gitea process. A user who can edit a repository's external issue tracker settings could make any later rendering of matching content, such as viewing a README, crash the instance for all users.
Title Gitea denial of service through external issue tracker patterns
Weaknesses CWE-125
CWE-248
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: Gitea

Published:

Updated: 2026-10-06T19:25:18.075Z

Reserved: 2026-10-04T21:59:53.543Z

Link: CVE-2026-96399

cve-icon Vulnrichment

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cve-icon NVD

Status : Received

Published: 2026-10-06T20:17:35.270

Modified: 2026-10-06T20:17:35.270

Link: CVE-2026-96399

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses