GitLab up to 19.1.6/19.2.4/19.3.0 denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$0-$5k0.63

Summaryinfo

A vulnerability described as problematic has been identified in GitLab up to 19.1.6/19.2.4/19.3.0. This impacts an unknown function. The manipulation results in denial of service. This vulnerability was named CVE-2026-77801. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as problematic, was found in GitLab up to 19.1.6/19.2.4/19.3.0. Affected is an unknown code block. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. CVE summarizes:

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 12.8 before 19.1.7, 19.2 before 19.2.5, and 19.3 before 19.3.1 that, under certain conditions, could have allowed an authenticated user to cause a denial of service affecting background job processing, due to missing object count limits.

The advisory is available at gitlab.com. This vulnerability is traded as CVE-2026-77801 since 08/21/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

Upgrading to version 19.1.7, 19.2.5 or 19.3.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2026-3029). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Open Source GitLab

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.5
CNA Vector (GitLab): 🔒

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: GitLab 19.1.7/19.2.5/19.3.1

Timelineinfo

08/21/2026 CVE reserved
08/26/2026 +5 days Advisory disclosed
08/26/2026 +0 days VulDB entry created
08/27/2026 +1 days VulDB entry last update

Sourcesinfo

Advisory: gitlab.com
Status: Confirmed

CVE: CVE-2026-77801 (🔒)
GCVE (CVE): GCVE-0-2026-77801
GCVE (VulDB): GCVE-100-395778
CERT Bund: WID-SEC-2026-3029 - GitLab: Mehrere Schwachstellen

Entryinfo

Created: 08/26/2026 15:53
Updated: 08/27/2026 05:27
Changes: 08/26/2026 15:53 (62), 08/27/2026 05:27 (7)
Complete: 🔍
Cache ID: 216::103

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

Discussion

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