CVE-2026-14814
Permissive Regular Expression in GitLab
Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2 that, under certain conditions, could have allowed a user to poison cached responses for raw repository files, causing targeted users' CI/CD pipelines to execute specially crafted content and potentially exposing protected environment variables, due to improper validation of repository references.
INFO
Published Date :
Oct. 13, 2026, 2:16 a.m.
Last Modified :
Oct. 14, 2026, 2:09 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | ceab7361-8a18-47b1-92ba-4d7d25f6715a | ||||
| CVSS 3.1 | HIGH | MITRE-CVE | ||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update GitLab to versions 19.2.8, 19.3.5, 19.4.2, or later.
- Apply vendor patches promptly to prevent response caching issues.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-14814.
| URL | Resource |
|---|---|
| https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-2-released/ | Release Notes Vendor Advisory |
| https://gitlab.com/gitlab-org/gitlab/-/work_items/604950 | Issue Tracking |
| https://hackerone.com/reports/3832707 | Permissions Required |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-14814 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-14814
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-14814 vulnerability anywhere in the article.
-
The Hacker News
GitLab Patches CVSS 10.0 Flaw That Could Let Unauthenticated Users Run Server Code
GitLab has released patches for a maximum-severity security flaw impacting its Community Edition (CE) and Enterprise Edition (EE) software that could result in arbitrary code execution. "GitLab has re ... Read more
The following table lists the changes that have been made to the
CVE-2026-14814 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Oct. 14, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* versions from (including) 19.3.0 up to (excluding) 19.3.5 *cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* versions from (including) 19.4.0 up to (excluding) 19.4.2 *cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* versions from (including) 19.3.0 up to (excluding) 19.3.5 *cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* versions from (including) 19.4.0 up to (excluding) 19.4.2 *cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* versions up to (excluding) 19.2.8 *cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* versions up to (excluding) 19.2.8 Added Reference Type GitLab Inc.: https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-2-released/ Types: Release Notes, Vendor Advisory Added Reference Type GitLab Inc.: https://gitlab.com/gitlab-org/gitlab/-/work_items/604950 Types: Issue Tracking Added Reference Type GitLab Inc.: https://hackerone.com/reports/3832707 Types: Permissions Required -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Oct. 14, 2026
Action Type Old Value New Value Removed SSVC {'id': 'CVE-2026-14814', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-10-13T00:00:00+00:00'} Added SSVC {'id': 'CVE-2026-14814', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-10-14T03:59:08.748362Z'} -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Oct. 14, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-14814', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-10-13T00:00:00+00:00'} -
New CVE Received by [email protected]
Oct. 13, 2026
Action Type Old Value New Value Added Description GitLab has remediated an issue in GitLab CE/EE affecting all versions before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2 that, under certain conditions, could have allowed a user to poison cached responses for raw repository files, causing targeted users' CI/CD pipelines to execute specially crafted content and potentially exposing protected environment variables, due to improper validation of repository references. Added CVSS V3.1 AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N Added CWE CWE-625 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/14xxx/CVE-2026-14814.json">CVE-2026-14814</a> Added Reference https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-2-released/ Added Reference https://gitlab.com/gitlab-org/gitlab/-/work_items/604950 Added Reference https://hackerone.com/reports/3832707