Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-112212— Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') in GitLab

Quick assessment

Affected
GitLab GitLab
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

GitLab 已修复 GitLab CE/EE 中的一个安全问题，该问题影响 18.3 至 19.3.6 之前的所有版本、19.4 至 19.4.3 之前的版本，以及 19.5 至 19.5.1 之前的版本。在特定条件下，未认证用户可能通过污染共享缓存中的 OAuth/OIDC 发现文档，将某些流程重定向到外部控制的服务器。该漏洞的根源在于：在构建缓存的发现响应中的端点 URL 时，对用户提供的值缺乏适当的信任校验。

CVSS 7.5 · High
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-112212

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') in GitLab
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
HTTP请求的解释不一致性(HTTP请求私运)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
GitLab GitLab 18.3 ~ 19.3.6 cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-112212

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-112212

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-112212 (1)

Other References for CVE-2026-112212 (1)

Same Patch Batch · GitLab · 2026-10-21 · 11 CVEs total

CVE-2026-15723 8.2 HIGH Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection') in Gi
CVE-2026-12664 6.8 MEDIUM Incorrect Authorization in GitLab
CVE-2026-16255 5.9 MEDIUM Incorrect Authorization in GitLab
CVE-2026-13319 4.3 MEDIUM Authorization Bypass Through User-Controlled Key in GitLab
CVE-2026-105777 4.3 MEDIUM Insertion of Sensitive Information Into Sent Data in GitLab
CVE-2026-112378 4.3 MEDIUM Use of Less Trusted Source in GitLab
CVE-2026-105711 3.5 LOW Use of Cache Containing Sensitive Information in GitLab
CVE-2026-14288 3.1 LOW Use of Incorrectly-Resolved Name or Reference in GitLab
CVE-2026-112326 3.1 LOW Improper Cleanup on Thrown Exception in GitLab
CVE-2026-103515 2.7 LOW Incorrect Authorization in GitLab

IV. Related Vulnerabilities

Same product: GitLab
Same vendor: GitLab
Same weakness: CWE-444

V. Comments for CVE-2026-112212

No comments yet

Leave a comment