CVE•Published 2026-10-22•Modified 2026-10-27•0 articles on news•5 live references•NVD data

CVE-2026-112212Gitlab · Gitlab

Vulnerability data via NVD (ingested)

CVSS v3.1

7.5

HIGH

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

EPSS percentile

Exploit Prediction Scoring System · top 92% of all CVEs

Weaknesses (CWE)

CWE-444Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.3 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, under certain conditions, an unauthenticated user could have poisoned a shared cache's OAuth/OIDC discovery document to redirect certain flows to an externally controlled server, due to improper trust of user-supplied values when constructing endpoint URLs in cached discovery responses.

Timeline

Published 2026-10-22

Modified 2026-10-27

External references

NVD MITRE GitHub PoC Sploitus 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).

Shodan · vuln tag0 hosts

vuln:CVE-2026-112212

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-2026-112212