3.1

CVE-2023-5600: Missing Authorization in GitLab

Analyzed
Published 20-06-2025Last modified 20-06-2025

Vulnerability summary

CVE-2023-5600 is a low (CVSS 3.1) Missing Authorization vulnerability in gitlab. EPSS estimates a 0.33% chance of exploitation in the next 30 days, higher than 25.7% of scored vulnerabilities. 2 public exploits are recorded.

Priority
Routine

Not severe (CVSS 3.1, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
3.1/10
010
Low · v3.1 (CVE.org)
EPSS score
0.33%
0%100%
Low · +0.05 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits2reference

Timeline

  1. 20-06-2025
    PublishedVulnerability first disclosed.
  2. 20-06-2025
    Last modifiedVulnerability information updated.

Description

An issue has been discovered in GitLab EE affecting all versions starting from 16.0 before 16.3.6, all versions starting from 16.4 before 16.4.2, all versions starting from 16.5 before 16.5.1. Arbitrary access to the titles of an private specific references could be leaked through the service-desk custom email template.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.33%

Chance of exploitation in the next 30 days

Percentile

26%

Versus all other CVEs

30-day change

Increase +0.05 pp

From 0.27% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

2 found
  • referenceUnverified

    Exploit Reference (hackerone.com)

    Maturity: unknown

  • referenceUnverified

    Exploit Reference (gitlab.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Gitlab1 product
  • gitlabEOL≥ 16.0, < 16.3.6 | ≥ 16.4, < 16.4.2 | ≥ 16.5, < 16.5.1 | ≥ 16.0.0, < 16.3.6 | ≥ 16.4.0, < 16.4.2 | 16.5.0

1 vendor · 1 product

References

2 links