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Fencer Vulns
critical 9.9

CVE-2026-52806 json

Gogs: RCE via git rebase --exec argument injection in pull request merge

published 2026-06-23 4 mo ago modified 2026-07-21 3 mo ago also EUVD-2026-39073 , GHSA-qf6p-p7ww-cwr9 , GO-2026-5580

cvss
9.9
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
7.9%
EPSS 7.9% chance of exploitation in 30 days, percentile 94%
public exploits
1
Metasploit, plus a Nuclei check

Summary

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.

Patch / fix

  • go gogs.io/gogs 0.14.3
  • gogs gogs 0.14.3
  • govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1

opensuse advisories openSUSE-SU-2026:21483-1

Timeline

  1. First public exploit (Metasploit exploit/multi/http/gogs_rebase_rce)
  2. Published

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
total
Assessed
4 mo ago

Exploit prediction

7.93% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Metasploit exploit/multi/http/gogs_rebase_rce Gogs Git Rebase Argument Injection RCE metasploit exploit, excellent rank, 2026-03-17
  • Nuclei template Gogs <= 0.14.2 - Authenticated RCE via git rebase Argument Injection nuclei detection template
  • github.com https://github.com/gogs/gogs/security/advisories/GHSA-qf6p-p7ww-cwr9 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 9.9 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
GitHub 3.1 9.9 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
go gogs.io/gogs
<0.14.3
all versions
0.14.3

Affected products

  • gogs gogs

Classification

Weakness
  • CWE-77 Improper Neutralization of Special Elements used in a Command

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.