CVE-2025-8405

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

0.51% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 43.5% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Analyzed. NVD last modified this record on 2026-10-14.

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

2025-12-11 04:05Z10 MO AGO

Last updated

2026-02-26 16:21Z8 MO AGO

Reserved

2025-07-31

Assigning CNA

GitLab

Record state

PUBLISHED

Severity

High (CVSS 7.7)

CNA CVSS vector

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

Weaknesses

• CWE-116Improper Encoding or Escaping of OutputClass

Data version

5.2

Document digest

6649044e80540a249f13cf447f43171d8d920ef764393064913efab9bacba635

• gitlab.comGitLab Issue #558214https://gitlab.com/gitlab-org/gitlab/-/issues/558214issue-trackingpermissions-required
• hackerone.comHackerOne Bug Bounty Report #3270940https://hackerone.com/reports/3270940technical-descriptionexploitpermissions-required
• about.gitlab.comhttps://about.gitlab.com/releases/2025/12/10/patch-release-gitlab-18-6-2-released/