Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') in GitLab
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.
CVE-2026-112212
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-112212
GitLab
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"cpes": [
"cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*"
],
"repo": "https://gitlab.com/gitlab-org/gitlab",
"vendor": "GitLab",
"product": "GitLab",
"versions": [
{
"status": "affected",
"version": "18.3",
"lessThan": "19.3.6",
"versionType": "semver"
},
{
"status": "affected",
"version": "19.4",
"lessThan": "19.4.3",
"versionType": "semver"
},
{
"status": "affected",
"version": "19.5",
"lessThan": "19.5.1",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-112212
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #50024 · Revision 1
- Added to Heist Feed
- Publisher date