CVE-2026-19650 | BDVDB-2026-360443 Detail

GitLabGitLab

Description#

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2 before 18.11.11, 19.0 before 19.0.8, 19.1 before 19.1.6, and 19.2 before 19.2.4 that under certain conditions could have allowed an unauthenticated user to execute mutations via GET requests due to improper request validation in GraphQL multiplex query handling.

Impact#

Per CVSS v3.1: confidentiality impact none, integrity impact high, availability impact low. Attack vector: network.

Weaknesses#

CWE-352 Cross-Site Request Forgery (CSRF)

References#

Exploit#

https://hackerone.com/reports/3903669

History#

Version 12026-08-17Record published in the CVE List.

Published

Published: 2026-08-17
Last modified: 2026-08-17

Vendor information

Vendor: GitLab
Product: GitLab

All GitLab vulnerabilities

Score

7.1 High

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 11.6.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Cross-Site Request Forgery

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
>= 18.2 and < 18.11.11
Fixed
18.11.11
Vulnerable
>= 19.0 and < 19.0.8
Fixed
19.0.8
Vulnerable
>= 19.1 and < 19.1.6
Fixed
19.1.6
Vulnerable
>= 19.2 and < 19.2.4
Fixed
19.2.4

Scoring System

CVSS v4.0

Not available

CVSS v3.1

7.1 High

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	Required
Scope	Unchanged
Confidentiality	None
Integrity	High
Availability	Low

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).