5.3

CVE-2026-84284: gitlab Incorrect Authorization

CVSS: 5.3v3.1MediumAnalyzed
AliasesCGA-2gfh-5r8m-5mv5CGA-44g8-qvcr-6rp2CGA-4jh3-mrff-8rp5
Published 13-10-2026Last modified 14-10-2026
Open JSON

Vulnerability summary

CVE-2026-84284 is a medium (CVSS 5.3) Incorrect Authorization vulnerability in gitlab. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 11.8% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (NVD)
EPSS score
0.22%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 13-10-2026
    PublishedVulnerability first disclosed.
  2. 14-10-2026
    Last modifiedVulnerability information updated.

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.11 before 19.2.8, all 19.3 versions, and 19.4 before 19.4.2 that, under certain conditions, could have allowed an unauthenticated user to read work item contents from private groups and projects due to incorrect authorization checks.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.22%

Chance of exploitation in the next 30 days

Percentile

12%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

13-10-202619-10-2026
EPSS score
0.22%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (hackerone.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Chainguard126 products
  • gitaly-config-19.3All versions (No fix recorded)
  • gitlab-agent-19.3All versions (No fix recorded)
  • gitlab-agent-fips-19.3All versions (No fix recorded)
  • gitlab-base-19.3All versions (No fix recorded)
  • gitlab-base-fips-19.3All versions (No fix recorded)
Wolfi15 products
  • gitlab-agent-19.3All versions (No fix recorded)
  • gitlab-docker-machine-19.2All versions (No fix recorded)
  • gitlab-docker-machine-19.3All versions (No fix recorded)
  • gitlab-kas-19.3All versions (No fix recorded)
  • gitlab-pages-19.3All versions (No fix recorded)
Gitlab1 product
  • gitlab≥ 17.11, < 19.2.8 | ≥ 19.3, < 19.4.2 | ≥ 17.11.0, < 19.2.8 | ≥ 19.3.0, < 19.4.2
Ubuntu1 product
  • gitlabAll versions (No fix recorded)

4 vendors · 143 products

References

5 links