CVE-2026-89078

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 ImpacttotalSuccessful exploitation gives total 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

0.49% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 41.8% of scored records. A rank, not a probability.

NVD base score

9.9 (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:H/I:H/A:L

NVD analysis status

Analyzed. NVD last modified this record on 2026-09-28.

Red Hat severity

Critical. Red Hat's rating for its own products, not a CVSS rating.

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

2026-09-23 23:05Z1 MO AGO

Last updated

2026-09-25 03:55Z1 MO AGO

Reserved

2026-09-10

Assigning CNA

GitLab

Record state

PUBLISHED

Severity

Critical (CVSS 9.9)

CNA CVSS vector

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

Weaknesses

• CWE-415Double FreeVariant

Data version

5.2

Document digest

ae95653fe35c05f3963652f66ef569cf6acdeeb2074f61ebd636ef13c1c1b735

• gitlab.comhttps://gitlab.com/gitlab-org/gitlab/-/work_items/628577
• hackerone.comHackerOne Bug Bounty Report #4019059https://hackerone.com/reports/4019059technical-descriptionexploitpermissions-required
• docs.gitlab.comhttps://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-1-released/