CVE-2023-6386: Allocation of Resources Without Limits or Throttling in GitLab
Vulnerability summary
CVE-2023-6386 is a high (CVSS 7.5) vulnerability in gitlab. EPSS estimates a 0.53% chance of exploitation in the next 30 days, higher than 45% of scored vulnerabilities. 1 public exploit is recorded.
Not severe (CVSS 6.5, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Timeline
- 05-02-2025PublishedVulnerability first disclosed.
- 05-02-2025Last modifiedVulnerability information updated.
Description
A denial of service vulnerability was identified in GitLab CE/EE, affecting all versions from 15.11 prior to 16.6.7, 16.7 prior to 16.7.5 and 16.8 prior to 16.8.2 which allows an attacker to spike the GitLab instance resource usage resulting in service degradation.
CVSS metrics
3 scores · 3 sources · 1 version- CVE.orgCNA6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HDiffers
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.53%
Chance of exploitation in the next 30 days
Percentile
45%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.53% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundExploit Reference (hackerone.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Gitlab1 product
- gitlab≥ 15.11, < 16.6.7 | ≥ 16.7, < 16.7.5 | ≥ 16.8, < 16.8.2 | ≥ 15.11.0, < 16.6.7 | ≥ 16.7.0, < 16.7.5 | ≥ 16.8.0, < 16.8.2
Ubuntu1 product
- gitlabAll versions (No fix recorded)
2 vendors · 2 products