CVE-2026-4879

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.24% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 15.6% of scored records. A rank, not a probability.

NVD base score

4.3 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

NVD analysis status

Analyzed. NVD last modified this record on 2026-08-19.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-08-12 19:05Z22 DAYS AGO

Last updated

2026-08-13 12:25Z22 DAYS AGO

Reserved

2026-03-26

Assigning CNA

GitLab

Record state

PUBLISHED

Severity

Medium (CVSS 4.3)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Weaknesses

• CWE-862Missing AuthorizationClass

Data version

5.2

Document digest

7195624bdbaba265ed5b502a1f9990d08c24128faf629c8cd5a30477300a2121

• gitlab.comhttps://gitlab.com/gitlab-org/gitlab/-/work_items/594839
• hackerone.comHackerOne Bug Bounty Report #3622861https://hackerone.com/reports/3622861technical-descriptionexploitpermissions-required
• docs.gitlab.comhttps://docs.gitlab.com/releases/patches/patch-release-gitlab-19-2-2-released/