Search/CVE-2026-5816
● CVE — High

CVE-2026-5816

VendorgitlabProductgitlabDiscoveredApr 22, 2026UpdatedApr 23, 2026

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.10 before 18.10.4 and 18.11 before 18.11.1 that could have allowed an unauthenticated user to execute arbitrary JavaScript in a user's browser session due to improper path validation under certain conditions.

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CVSS v3.1
8 HIGH
EPSS
0.41%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
0
sources referencing this CVE
Related IOCs
0
seen in the same coverage
EPSS Trend
Sep 25, 2026 → Oct 26, 2026
▼ 0.18pp
0.59% → 0.41% over 2 tracked changes
CVSS v3.1 Detail
Attack VectorNETWORK
Attack ComplexityHIGH
Privileges RequiredNONE
User InteractionREQUIRED
ScopeCHANGED
ConfidentialityHIGH
IntegrityHIGH
AvailabilityNONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N
Connections
2 relationships
Timeline
disclosure → media coverage
Apr 22, 2026
Disclosure — published as a CVE record.