What is CVE-2026-19650?
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.
The record classifies CVE-2026-19650 under weakness class CWE-352. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs a user to take an action first, and has high impact on integrity. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 72 days ago.
Severity and exploitation probability
- CVSS v3.1 base score
- 7.1 — HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L - CISA KEV
- Not listed in the CISA Known Exploited Vulnerabilities catalog
- Threadlinqs priority
- 5.6/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- Published
- 2026-08-17
Is CVE-2026-19650 being exploited?
Weaponised exploit code for CVE-2026-19650 is publicly available. 1 public proof-of-concept repository is tracked for this identifier.
Affected products and versions
- GitLab: GitLab
How to fix CVE-2026-19650
No vendor patch reference has been recorded for CVE-2026-19650 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.
Threat activity tracking CVE-2026-19650
1 tracked threat in the Threadlinqs corpus references CVE-2026-19650, either in the campaign’s CVE list or as an indicator on the campaign record.
Sources
Enriched from CVE.org, public proof-of-concept repositories. Last verified by Threadlinqs on .