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TI-2021-17110 Aliases CVE-2021-39880GHSA-w6pv-c757-6rgr

A Denial Of Service vulnerability in the apollo_upload_server Ruby gem in GitLab CE/EE…

Priority LOW 33Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.

Summary

A Denial Of Service vulnerability in the apollo_upload_server Ruby gem in GitLab CE/EE all versions starting from 11.9 before 14.0.9, all versions starting from 14.1 before 14.1.4, and all versions starting from 14.2 before 14.2.2 allows an attacker to deny access to all users via specially crafted requests to the apollo_upload_server middleware.

Why it matters now

EPSS 0.02066 81st percentileScored 2026-11-07
Fix Fixed GitLab (GitLab): 14.2.2, 14.1.4, 14.0.9apollo_upload_server (RubyGems): 2.1.0

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
GitLabGitLab14.2 to before 14.2.2; 14.1 to before 14.1.4; 11.9 to before 14.0.914.2.2, 14.1.4, 14.0.9Patch availableCNA
—apollo_upload_server (RubyGems)before 2.1.02.1.0Patch availableGHSA-w6pv-c757-6rgr
  • GitLab VendorGitLab Affected 14.2 to before 14.2.2; 14.1 to before 14.1.4; 11.9 to before 14.0.9 Fixed in 14.2.2, 14.1.4, 14.0.9 Patch available CNA
  • apollo_upload_server (RubyGems) Vendor— Affected before 2.1.0 Fixed in 2.1.0 Patch available GHSA-w6pv-c757-6rgr

CPE configurations NVD · 6

CPEVersionsRoleVendor
cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*after 11.9.0, before 14.0.9VulnerableGitLab
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*11.9.0 to before 14.0.9VulnerableGitLab
cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*after 14.1.0, before 14.1.4VulnerableGitLab
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*14.1.0 to before 14.1.4VulnerableGitLab
cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*14.2.0 to before 14.2.2VulnerableGitLab
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*14.2.0 to before 14.2.2VulnerableGitLab
  • cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* Versions after 11.9.0, before 14.0.9 Vulnerable ·GitLab
  • cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* Versions 11.9.0 to before 14.0.9 Vulnerable ·GitLab
  • cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* Versions after 14.1.0, before 14.1.4 Vulnerable ·GitLab
  • cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* Versions 14.1.0 to before 14.1.4 Vulnerable ·GitLab
  • cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* Versions 14.2.0 to before 14.2.2 Vulnerable ·GitLab
  • cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* Versions 14.2.0 to before 14.2.2 Vulnerable ·GitLab

Remediation

  • Fix · CNA GitLab (GitLab) Fixed in 14.2.2, 14.1.4, 14.0.9
  • Fix · GHSA-w6pv-c757-6rgr apollo_upload_server (RubyGems) Fixed in 2.1.0 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-39880
  2. 2026-10-03 Alias added: GHSA-w6pv-c757-6rgr

References

Advisory 3

Other 7

  • 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