CVE-2026-52806
CVE-2026-52806 is a critical-severity vulnerability with a CVSS 3.x base score of 9.9. 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-77.
Key facts
- Severity: Critical (CVSS 3.x base score 9.9)
- EPSS exploit prediction: 1% (60th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-39073
- Weakness: CWE-77
- Published:
- Last modified:
Description
Gogs is an open source self-hosted Git service. Prior to 0.14.3, Gogs allows authenticated users to achieve Remote Code Execution (RCE) on the server by creating a pull request with a specially crafted branch name that injects the --exec flag into the git rebase command during the "Rebase before merging" merge operation. This vulnerability is fixed in 0.14.3.
Frequently asked questions
- What is CVE-2026-52806?
- Gogs is an open source self-hosted Git service. Prior to 0.14.3, Gogs allows authenticated users to achieve Remote Code Execution (RCE) on the server by creating a pull request with a specially crafted branch name that injects the --exec flag into the git rebase command during the "Rebase before merging" merge operation. This vulnerability is fixed in 0.14.3.
- How severe is CVE-2026-52806?
- CVE-2026-52806 has a CVSS 3.x base score of 9.9, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2026-52806 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-52806?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- Does CVE-2026-52806 have an EU (EUVD) identifier?
- Yes. CVE-2026-52806 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-39073.
- When was CVE-2026-52806 published?
- CVE-2026-52806 was published on 2026-06-24 and last updated on 2026-06-26.
References
- https://github.com/gogs/gogs/commit/a9dbafbfd8e1020bacc626420238c01d75d03364
- https://github.com/gogs/gogs/pull/8301
- https://github.com/gogs/gogs/releases/tag/v0.14.3
- https://github.com/gogs/gogs/security/advisories/GHSA-qf6p-p7ww-cwr9
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