CVE-2026-52796
LOWDescription
Gogs is an open source self-hosted Git service. Prior to 0.14.3, specially crafted issue index pattern can cause a panic when rendering, resulting in denial of service. In internal/markup/markup.go, RenderIssueIndexPattern renders the issue index pattern to a link using com.Expand, which is not safe: when the configured pattern contains an opening brace { but no closing brace }, strings.Index(template, "}") returns -1 and the subsequent slice template[:-1] triggers a panic. Once such a pattern is set, any page in the affected repository that contains an issue index reference such as #1 becomes unavailable. This vulnerability is fixed in 0.14.3.
How to fix
No published remediation has been found for this vulnerability's affected products yet.
Mitigation guidance may be in the linked vendor advisories in the References section below.
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CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L
Exploit Intelligence
Low risk: more likely to be exploited than 14% of all known CVEs.
References
Related Vulnerabilities
Other CWE-1336 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2024-4040 | Critical | 9.8 | 100% | KEV | Fix |
| CVE-2024-23692 | Critical | 9.8 | 99% | KEV + Ransom | - |
| CVE-2025-47916 | Critical | 10.0 | 84% | - | Fix |
| CVE-2024-32651 | Critical | 10.0 | 84% | - | - |
| CVE-2022-25813 | High | 7.5 | 67% | - | Fix |
| CVE-2025-34300 | Unscored | - | 51% | - | - |
Common questions
How do I fix CVE-2026-52796?
No published fix for CVE-2026-52796 has been found yet. Check the linked vendor advisories for guidance as it becomes available.
Is CVE-2026-52796 being actively exploited?
Not that we know of. CVE-2026-52796 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.23% is the estimated probability that it will be exploited in the next 30 days. That is higher than 14% of all scored CVEs.
How severe is CVE-2026-52796?
CVE-2026-52796 has a CVSS v3 base score of 3.5, rated low. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-25.