CVE-2026-123012 (GCVE-0-2026-123012)

Vulnerability from cvelistv5 – Published: 2026-11-05 04:52 – Updated: 2026-11-06 18:03
VLAI
Summary
In Gogs 0.14.3, the Git Smart HTTP authorization layer in internal/route/repo/http.go allows a push when only read access was intended, a different vulnerability than CVE-2026-52810. This occurs because of a case-sensitivity desync between the authorization classifier and the request dispatcher: the gitHTTPIsPull function compares the Git action verb case-sensitively and defaults to pull (read access) for any unrecognized string, whereas the request dispatcher lowercases the same verb before routing it to the receive-pack handler. Capitalizing a single letter in the URL (e.g. info/Refs instead of info/refs, or git-receive-Pack instead of git-receive-pack) causes the classifier to misidentify a push as a pull, granting only read-level authorization, whereas the dispatcher routes it to the write handler. An authenticated read-only collaborator can exploit this to push to a private repository, creating, updating, or deleting refs.
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:L/SA:N
CWE
  • CWE-178 - Improper Handling of Case Sensitivity
Assigner
mitre CNA under the mitre root
CNA scorecard E 28/100 over 2263 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Gogs Gogs Affected: 0.14.3 (semver)
    cpe:2.3:a:gogs:gogs:*:*:*:*:*:*:*:*
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