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CVE-2026-4523

Missing Authorization in GitLab

LOW
3.7
CVSS Score
Published: September 29, 2026 at 09:35 AM UTC
Updated: October 5, 2026 at 05:07 PM UTC
1 product affected across 1 vendorGitLab

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Severity
LOW3.7
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.11 before 19.2.7, 19.3 before 19.3.3, and 19.4 before 19.4.1 that under certain conditions could have allowed an unauthenticated user to read CI/CD job trace contents containing sensitive variable values due to improper authorization enforcement in the GraphQL API.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

GitLab· GitLabmaven
95%
15.11 ≤ v < 19.2.715.11.0 ≤ v < 19.2.719.3 ≤ v < 19.3.319.3.0 ≤ v < 19.3.319.4 ≤ v < 19.4.115.1119.319.419.4.0
Affected range stops below 19.2.7, so it looks safe — our inference, not a vendor statement
Affected range stops below 19.3.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 19.4.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (3)

Broken Link
Source: cverecord
https://gitlab.com/gitlab-org/gitlab/-/work_items/594294
Technical DescriptionExploitPermissions Required
Source: cverecord
https://hackerone.com/reports/3590929
Release NotesVendor Advisory
Source: cverecord
https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-1-released/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

3.7LOWGitLab
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-862

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