CVE-2026-100755Acceptance of Extraneous Untrusted Data With Trusted Data in GitLab
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.2 before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2 that, under certain deployment configurations, could have allowed an authenticated user to poison cached page content served to other users due to improper cache key construction.
- CVSS
- 4.6 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L
- Weakness (CWE)
- CWE-349
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitLab
- NVD analysis
- Analyzed
- Record last updated
- Oct 14, 2026
- First seen by InfoSec Signals
- Oct 13, 2026
Affected products
GitLab GitLab gitlab:gitlab | from 16.2 before 19.2.8; from 19.3 before 19.3.5; from 19.4 before 19.4.2 | CNA record |
gitlab gitlab gitlab:gitlab | from 16.2.0 before 19.2.8; from 16.2.0 before 19.2.8; from 19.3.0 before 19.3.5; from 19.3.0 before 19.3.5; from 19.4.0 before 19.4.2; from 19.4.0 before 19.4.2 | NVD |
References
- https://gitlab.com/gitlab-org/gitlab/-/work_items/627507issue-tracking
- https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-2-released/release-notes, vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.