BIT-gitlab-2026-1184

vendorUSosv

Deserialization of Untrusted Data in GitLab

view advisory published 2026-05-18Licence: per source

GitLab has remediated an issue in GitLab EE affecting all versions from 11.9 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an unauthenticated user to cause denial of service by uploading a specially crafted file due to improper validation.

describes (1)

Related CVEs.

ID	severity	EPSS	exploitable	published
CVE-2026-1184US	high7.5	0.33% (26th)	—	2026-05-14
GitLab has remediated an issue in GitLab EE affecting all versions from 11.9 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an unauthenticate…

references

External citations — patches, advisories, analysis.

https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released/ARTICLE
https://gitlab.com/gitlab-org/gitlab/-/work_items/586634WEB
https://hackerone.com/reports/3515842WEB
https://nvd.nist.gov/vuln/detail/CVE-2026-1184WEB

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