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TI-2023-03670 Aliases CVE-2023-3949GHSA-c3hq-3p4c-ch2w

Insertion of Sensitive Information Into Sent Data in GitLab

Priority MEDIUM 63CWE-201Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-201.

Summary

An issue has been discovered in GitLab affecting all versions starting from 11.3 before 16.4.3, all versions starting from 16.5 before 16.5.3, all versions starting from 16.6 before 16.6.1. It was possible for unauthorized users to view a public projects' release descriptions via an atom endpoint when release access on the public was set to only project members.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00592 48th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed GitLab (GitLab): 16.4.3, 16.5.3, 16.6.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
GitLabGitLab11.3 to before 16.4.3; 16.5 to before 16.5.3; 16.6 to before 16.6.116.4.3, 16.5.3, 16.6.1Patch availableCNA
  • GitLab VendorGitLab Affected 11.3 to before 16.4.3; 16.5 to before 16.5.3; 16.6 to before 16.6.1 Fixed in 16.4.3, 16.5.3, 16.6.1 Patch available CNA

CPE configurations NVD · 6

CPEVersionsRoleVendor
cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*11.3.0 to before 16.4.3VulnerableGitLab
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*11.3.0 to before 16.4.3VulnerableGitLab
cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*16.5.0 to before 16.5.3VulnerableGitLab
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*16.5.0 to before 16.5.3VulnerableGitLab
cpe:2.3:a:gitlab:gitlab:16.6.0:*:*:*:community:*:*:*16.6.0VulnerableGitLab
cpe:2.3:a:gitlab:gitlab:16.6.0:*:*:*:enterprise:*:*:*16.6.0VulnerableGitLab
  • cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* Versions 11.3.0 to before 16.4.3 Vulnerable ·GitLab
  • cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* Versions 11.3.0 to before 16.4.3 Vulnerable ·GitLab
  • cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* Versions 16.5.0 to before 16.5.3 Vulnerable ·GitLab
  • cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* Versions 16.5.0 to before 16.5.3 Vulnerable ·GitLab
  • cpe:2.3:a:gitlab:gitlab:16.6.0:*:*:*:community:*:*:* Versions 16.6.0 Vulnerable ·GitLab
  • cpe:2.3:a:gitlab:gitlab:16.6.0:*:*:*:enterprise:*:*:* Versions 16.6.0 Vulnerable ·GitLab

Remediation

  • Fix · CNA GitLab (GitLab) Fixed in 16.4.3, 16.5.3, 16.6.1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    GitLab 16.4.3, 16.5.3, 16.6.1

    9 records Highest priority Priority MEDIUM 2 MEDIUM, 7 LOW

    Other records, highest priority first

    • TI-2023-03681 Incorrect Authorization in GitLabPriority MEDIUM 53
    • TI-2023-05556 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLabPriority LOW 38
    • TI-2023-05524 Incorrect Authorization in GitLabPriority LOW 34
    Show all 9 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-3949
  2. 2026-10-03 Alias added: GHSA-c3hq-3p4c-ch2w

References

Exploit 1

Advisory 1

  • TI-2026-71508 Integer overflow in GitLab allows code execution on the server KEVCVSS 3.1CRITICAL 10.0
  • TI-2026-58817 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in GitLab KEVCVSS 3.1CRITICAL 10.0
  • TI-2023-06425 Weak Password Recovery Mechanism for Forgotten Password in GitLab KEVCVSS 3.1CRITICAL 10.0
  • TI-2021-05191 Code injection in GitLab KEVCVSS 3.1CRITICAL 10.0
  • TI-2021-05161 Server-side request forgery in GitLab KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-02763 Injection in GitLab CVSS 3.1CRITICAL 9.9
See all 1506 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences