CVE-2026-96399
highA repository's external issue tracker regular expression containing alternating capture groups could produce invalid slice indexes when Gitea rendered issue re…
Vendor / product: Gitea — gitea
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.
CVSS
7.5
7.5 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Severity source: NVD CVSS v3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
Timeline (UTC)
Published: 2026-10-06 20:17
Modified: 2026-10-13 15:36
NVD status: Analyzed
Last synced 3 days ago
Verified against the source API 2026-10-27 06:58 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
gitea / gitea <28.0.0
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Patch / mitigation: https://github.com/go-gitea/gitea/pull/39354
References
- https://blog.gitea.com/release-of-28.0.0/ 88ee5874-cf24-4952-aea0-31affedb7ff2
- https://github.com/go-gitea/gitea/pull/39354 88ee5874-cf24-4952-aea0-31affedb7ff2
- https://github.com/go-gitea/gitea/releases/tag/v28.0.0 88ee5874-cf24-4952-aea0-31affedb7ff2
- https://github.com/go-gitea/gitea/security/advisories/GHSA-mw6q-qj47-9g5q 88ee5874-cf24-4952-aea0-31affedb7ff2
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 06:58 UTC · record ↗