# CVE-2026-100755: Acceptance of Extraneous Untrusted Data With Trusted Data in GitLab

> CVE-2026-100755: Acceptance of Extraneous Untrusted Data With Trusted Data in GitLab. CVSS 4.6 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-100755
Last updated: 2026-10-14T19:17:00Z

- Published: 2026-10-13 01:05 UTC · Updated: 2026-10-14 19:17 UTC · Assigner: GitLab
- CVSS: 4.6 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L
- EPSS: 0.09%, 0th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-349

## Description

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.

## Affected vendors and products

- GitLab: GitLab

## Tracked companies

- [GitLab](https://rewindex.com/company/gitlab.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-100755)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-100755)
- [https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-2-released/](https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-2-released/)
- [https://gitlab.com/gitlab-org/gitlab/-/work\_items/627507](https://gitlab.com/gitlab-org/gitlab/-/work_items/627507)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-100755 · Markdown: https://rewindex.com/cve/CVE-2026-100755.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-100755 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:12:30.497Z