VDB-359026 · CVE-2026-6515 · GCVE-0-2026-6515

GitLab Community Edition/Enterprise Edition up to 18.9.5/18.10.3/18.11.0 session expiration

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.7	$0-$5k	0.00

Summaryinfo

A vulnerability labeled as critical has been found in GitLab Community Edition and Enterprise Edition up to 18.9.5/18.10.3/18.11.0. This affects an unknown function. Executing a manipulation can lead to session expiration. This vulnerability is handled as CVE-2026-6515. The attack can be executed remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in GitLab Community Edition and Enterprise Edition up to 18.9.5/18.10.3/18.11.0. It has been declared as critical. This vulnerability affects an unknown part. The manipulation with an unknown input leads to a session expiration vulnerability. The CWE definition for the vulnerability is CWE-613. According to WASC, "Insufficient Session Expiration is when a web site permits an attacker to reuse old session credentials or session IDs for authorization." As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2 before 18.9.6, 18.10 before 18.10.4, and 18.11 before 18.11.1 that could have allowed a user to use invalidated or incorrectly scoped credentials to access Virtual Registries under certain conditions.

The advisory is available at gitlab.com. This vulnerability was named CVE-2026-6515 since 04/17/2026. The exploitation appears to be easy. The attack can be initiated remotely. The technical details are unknown and an exploit is not available.

Upgrading to version 18.9.6, 18.10.4 or 18.11.1 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Bug Tracking Software

Vendor

GitLab

Name

Version

License

open-source

Website

Vendor: https://gitlab.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.4
CNA Vector (GitLab): 🔒

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Session expiration
CWE: CWE-613
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Community Edition/Enterprise Edition 18.9.6/18.10.4/18.11.1

Timelineinfo

04/17/2026 CVE reserved
04/22/2026 +5 days Advisory disclosed
04/22/2026 +0 days VulDB entry created
04/22/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: gitlab.com

Advisory: gitlab.com
Status: Confirmed

CVE: CVE-2026-6515 (🔒)
GCVE (CVE): GCVE-0-2026-6515
GCVE (VulDB): GCVE-100-359026

Entryinfo

Created: 04/22/2026 19:03
Changes: 04/22/2026 19:03 (63)
Complete: 🔍
Cache ID: 216::103