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VulnerabilityPublished

CVE-2026-8280: GitLab · Unthrottled Resource Allocation

Affects GitLabSource GCVE Database

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Not known to be exploited · CVSS 6.5 Medium · fixed in 18.11.3 : update GitLab when convenient.

Data as of 11 Nov 2026, 23:08 UTC

CVSS 3.1 base score
6.5Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (GitLab)CVSS 3.16.5
Patch
Available – fixed in 18.11.3, 18.10.6, 18.9.7
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 14 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 11 Nov 2026.

What to do

Upgrade GitLab to 18.11.3, 18.10.6 or 18.9.7.

Affected software

ProductAffectedFixed in
GitLab GitLabAffected
  • =8.3
  • =18.10
  • =18.11
  • >=8.3 <18.9.7
  • >=18.10 <18.10.6
  • >=18.11 <18.11.3
Fixed in
  • 18.9.7
  • 18.10.6
  • 18.11.3

AI-suggested

Upgrade GitLab CE/EE to versions 18.9.7, 18.10.6, 18.11.3 or later where the issue has been fixed. No other mitigation or workaround is indicated.

Description

CVE-2026-8280 is a vulnerability in GitLab CE/EE versions from 8.3 up to but not including 18.9.7, 18.10 up to but not including 18.10.6, and 18.11 up to but not including 18.11.3. It allows an authenticated user to cause a denial of service by consuming excessive memory due to improper input validation and lack of resource allocation limits or throttling.

References

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