CVE•Published 2026-04-22•Modified 2026-04-23•1 article on news•4 live references•NVD data

CVE-2026-5816Gitlab · Gitlab

Vulnerability data via NVD (ingested)

CVSS v3.1

8.0

HIGH

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

EPSS percentile

—

Weaknesses (CWE)

CWE-41Improper Resolution of Path Equivalence

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.10 before 18.10.4 and 18.11 before 18.11.1 that could have allowed an unauthenticated user to execute arbitrary JavaScript in a user's browser session due to improper path validation under certain conditions.

Timeline

Published 2026-04-22

Modified 2026-04-23

External references

NVD MITRE Exploit-DB VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common). Live host counts are a Premium feature.

Shodan · vuln tag

vuln:CVE-2026-5816

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Gitlab Gitlab"

All exposed Gitlab Gitlab instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Gitlab"

HTTP body or banner mentions "Gitlab" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-5816