CVE-2026-15423

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• 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

0.40% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 33.9% of scored records. A rank, not a probability.

NVD base score

8.5 (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:C/C:L/I:H/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 18:05Z2 MO AGO

Last updated

2026-08-13 14:57Z2 MO AGO

Reserved

2026-07-10

Assigning CNA

GitLab

Record state

PUBLISHED

Severity

High (CVSS 8.5)

CNA CVSS vector

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

Weaknesses

• CWE-863Incorrect AuthorizationClass

Data version

5.2

Document digest

aa74fd1f0b2d06f6e828f78376027014e23092f359d7c0db219952cce73c8809

• gitlab.comhttps://gitlab.com/gitlab-org/gitlab/-/work_items/605705
• hackerone.comHackerOne Bug Bounty Report #3832069https://hackerone.com/reports/3832069technical-descriptionexploitpermissions-required
• docs.gitlab.comhttps://docs.gitlab.com/releases/patches/patch-release-gitlab-19-2-2-released/