CVE-2026-110264

CRITICAL
INFO Priority: 0.13 BB Relevance: 80/100
Published: 2026-10-22 Modified: 2026-10-27 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Conf. Impact Integ. Impact Scope Change

CVSS Vector Breakdown

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

Description

An issue has been discovered in GitLab CE/EE affecting all versions from 7.0 before 18.11.13, 19.0 before 19.0.10, 19.1 before 19.1.9, 19.2 before 19.2.9, 19.3 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, under certain conditions, could have allowed an unauthenticated user to execute arbitrary code on the GitLab server due to integer overflow when compiling a specially crafted regular expression.

Weakness Classification (1)

Affected Software (28)

VendorProductVersion
gitlab gitlab 7.0.0 – 18.11.13
gitlab gitlab 7.0.0 – 18.11.13
gitlab gitlab 19.0.0 – 19.0.10
gitlab gitlab 19.0.0 – 19.0.10
gitlab gitlab 19.1.0 – 19.1.9
gitlab gitlab 19.1.0 – 19.1.9
gitlab gitlab 19.2.0 – 19.2.9
gitlab gitlab 19.2.0 – 19.2.9
gitlab gitlab 19.3.0 – 19.3.6
gitlab gitlab 19.3.0 – 19.3.6
gitlab gitlab 19.4.0 – 19.4.3
gitlab gitlab 19.4.0 – 19.4.3
gitlab gitlab 19.5.0
gitlab gitlab 19.5.0
gitlab gitlab 7.0.0 – 18.11.13
gitlab gitlab 7.0.0 – 18.11.13
gitlab gitlab 19.0.0 – 19.0.10
gitlab gitlab 19.0.0 – 19.0.10
gitlab gitlab 19.1.0 – 19.1.9
gitlab gitlab 19.1.0 – 19.1.9
gitlab gitlab 19.2.0 – 19.2.9
gitlab gitlab 19.2.0 – 19.2.9
gitlab gitlab 19.3.0 – 19.3.6
gitlab gitlab 19.3.0 – 19.3.6
gitlab gitlab 19.4.0 – 19.4.3
gitlab gitlab 19.4.0 – 19.4.3
gitlab gitlab 19.5.0
gitlab gitlab 19.5.0

Bug Bounty Relevance

80 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

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

EPSS — Exploitation Probability

1.31%
Raw Score 0.013050
Percentile 70.5%
Date 2026-10-29

EPSS Trend

2026-10-29
0.01305
2026-10-28
0.01014

Intelligence Sources

nvd ref →