CVE-2026-10086

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 51/100
Published: 2026-06-25 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity Scope Change

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: Required
S: Changed
C: Low
I: Low
A: None

Description

GitLab has remediated an issue in GitLab EE affecting all versions from 16.4 before 18.11.6, 19.0 before 19.0.3, and 19.1 before 19.1.1 that under certain conditions could have allowed an authenticated user with developer-role permissions to execute arbitrary client-side code in the context of another user's session, due to improper sanitization of user-supplied input.

Weakness Classification (1)

Affected Software (3)

VendorProductVersion
gitlab gitlab 16.4.0 – 18.11.6
gitlab gitlab 19.0.0 – 19.0.3
gitlab gitlab 19.1.0

Bug Bounty Relevance

51 / 100
✓ Network accessible
✓ Low complexity

CVSS Score

5.4 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS — Exploitation Probability

0.35%
Raw Score 0.003490
Percentile 28.5%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00349
2026-10-28
0.00349

Intelligence Sources

nvd ref →