CVE-2025-11984 | Authentication Bypass Using an Alternate Path or Channel in GitLab

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 13.1 before 18.4.6, 18.5 before 18.5.4, and 18.6 before 18.6.2 that could have allowed an authenticated user to bypass WebAuthn two-factor authentication by manipulating the session state under certain conditions.

Published: 2025-12-11 Last update: 2025-12-23 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-11984 is rated Low Risk (29/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.02%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-11984

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-12-11 — 0.02% —

Full EPSS history (1 record total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-11984

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.8 3.1 MEDIUM
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 1.6 5.2 [email protected]

Weakness enumeration for CVE-2025-11984

OS Trackers for CVE-2025-11984

vendor priority summary link
debian not yet assigned CVE-2025-11984 not yet assigned priority: Debian including 1 source packages (gitlab), 1 status rows across 1 suites (sid): open 1. https://security-tracker.debian.org/tracker/CVE-2025-11984
ubuntu medium CVE-2025-11984 medium priority: Ubuntu including 1 source packages (gitlab), 6 status rows across 6 suites (jammy, noble, plucky, questing, upstream, xenial): DNE 4, ignored 1, needs-triage 1. https://ubuntu.com/security/CVE-2025-11984

Affected software / configurations for CVE-2025-11984

Vendor Product Version Raw CPE
gitlab gitlab >= 13.1.0, < 18.4.6 cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*
gitlab gitlab >= 13.1.0, < 18.4.6 cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*
gitlab gitlab >= 18.5.0, < 18.5.4 cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*
gitlab gitlab >= 18.5.0, < 18.5.4 cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*
gitlab gitlab >= 18.6.0, < 18.6.2 cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*
gitlab gitlab >= 18.6.0, < 18.6.2 cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*

References for CVE-2025-11984

cvelogic Threat Intelligence