PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-6976 GitLab CVE debrief

CVE-2026-6976 is a low-severity vulnerability in GitLab CE/EE that could allow an authenticated user with developer-role permissions to hide changes from merge request diff views due to improper input handling of file names. The vulnerability affects GitLab versions from 15.9 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2.

Vendor
GitLab
Product
Unknown
CVSS
LOW 3.7
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-11
Original CVE updated
2026-06-11
Advisory published
2026-06-11
Advisory updated
2026-06-11

Who should care

Users of GitLab CE/EE versions from 15.9 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 should be aware of this vulnerability and take steps to remediate it.

Technical summary

The vulnerability is caused by improper input handling of file names in GitLab CE/EE. An authenticated user with developer-role permissions could potentially hide changes from merge request diff views.

Defensive priority

Low

Recommended defensive actions

  • Upgrade to GitLab version 18.10.8, 18.11.5, or 19.0.2 or later.
  • Review and apply patches as described in the release notes: resourceLinkAnnotations with id 'ref-4'.

Evidence notes

The CVE record and NVD detail can be found at: resourceLinkAnnotations with ids 'cve-org' and 'nvd'.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-6976 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-6976

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-6976 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-6976

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.