Is CVE-2026-2104 in the CISA KEV catalog?

No. CVE-2026-2104 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-2104?

CVE-2026-2104 has a CVSS v3 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2026-2104?

CVE-2026-2104 has an EPSS score of 0.31% (23th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-2104?

Upgrade gitlab to 18.10.3 or later.

CVE & CISA-KEV Catalog

CVE-2026-2104

MEDIUM

4.3

CVSS v3

NVD

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2 before 18.8.9, 18.9 before 18.9.5, and 18.10 before 18.10.3 that could have allowed an authenticated user to access confidential issues assigned to other users via CSV export due to insufficient authorization checks.

CWE-639Authorization Bypass Through User-Controlled Key

How to fix

Remediation Available

gitlabNVD

Affected:>= 18.10.0, < 18.10.3Fixed in:18.10.3CVE-2026-2104derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

0.31%probability of exploitation in 30 days

23rdpercentile

Low risk: more likely to be exploited than 23% of all known CVEs.

References

Vendor Advisory1

about.gitlab.com

Other references2

Related Vulnerabilities

Other CWE-639 (Authorization Bypass Through User-Controlled Key) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-6875	Critical	9.8	90%	-	-
CVE-2024-46982	High	7.5	61%	-	Fix
CVE-2021-45428	Critical	9.8	57%	-	-
CVE-2019-17382	Critical	9.1	54%	-	Fix
CVE-2019-13360	Critical	9.8	24%	-	-
CVE-2023-48783	Medium	5.4	22%	-	Fix

Embed a live status badge for CVE-2026-2104

Markdown

[![CVE-2026-2104](https://tridentstack.com/cve/badge/CVE-2026-2104.svg)](https://tridentstack.com/cve/CVE-2026-2104)

HTML

<a href="https://tridentstack.com/cve/CVE-2026-2104"><img src="https://tridentstack.com/cve/badge/CVE-2026-2104.svg" alt="CVE-2026-2104"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-14.