CVE-2026-52802
CVE-2026-52802 is a medium-severity vulnerability with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-601.
Key facts
- Severity: Medium (CVSS 3.x base score 5.4)
- EPSS exploit prediction: 1% (42nd percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-39068
- Weakness: CWE-601
- Published:
- Last modified:
Description
Gogs is an open source self-hosted Git service. Prior to 0.14.3, an open redirect vulnerability exists in Gogs where attacker-controlled redirect_to parameters can bypass validation, allowing redirection to arbitrary external sites. All redirects in Gogs that are validated via the IsSameSite function are vulnerable. The function only inspects the first two characters of the URL string. This check fails to account for directory traversal sequences followed by backslashes. This vulnerability is fixed in 0.14.3.
Frequently asked questions
- What is CVE-2026-52802?
- Gogs is an open source self-hosted Git service. Prior to 0.14.3, an open redirect vulnerability exists in Gogs where attacker-controlled redirect_to parameters can bypass validation, allowing redirection to arbitrary external sites. All redirects in Gogs that are validated via the IsSameSite function are vulnerable. The function only inspects the first two characters of the URL string. This check fails to account for directory traversal sequences followed by backslashes. This vulnerability is fixed in 0.14.3.
- How severe is CVE-2026-52802?
- CVE-2026-52802 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2026-52802 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-52802?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-52802 have an EU (EUVD) identifier?
- Yes. CVE-2026-52802 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-39068.
- When was CVE-2026-52802 published?
- CVE-2026-52802 was published on 2026-06-24 and last updated on 2026-06-25.
References
- https://github.com/gogs/gogs/commit/c5da9631dc75f692f313373ae229c4d47ba6517f
- https://github.com/gogs/gogs/pull/8322
- https://github.com/gogs/gogs/releases/tag/v0.14.3
- https://github.com/gogs/gogs/security/advisories/GHSA-xxhq-69mf-w8cr
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