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Vulnerability Details :

CVE-2026-9807

Summary
Assigner-GitLab
Assigner Org ID-ceab7361-8a18-47b1-92ba-4d7d25f6715a
Published At-28 May, 2026 | 07:34
Updated At-28 May, 2026 | 12:11
Rejected At-
Credits

Incorrect Authorization in GitLab

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.9 before 18.10.7, 18.11 before 18.11.4, and 19.0 before 19.0.1 that under certain conditions could have allowed a blocked Project Access Token to continue accessing private resources due to incorrect authorization enforcement.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:GitLab
Assigner Org ID:ceab7361-8a18-47b1-92ba-4d7d25f6715a
Published At:28 May, 2026 | 07:34
Updated At:28 May, 2026 | 12:11
Rejected At:
▼CVE Numbering Authority (CNA)
Incorrect Authorization in GitLab

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.9 before 18.10.7, 18.11 before 18.11.4, and 19.0 before 19.0.1 that under certain conditions could have allowed a blocked Project Access Token to continue accessing private resources due to incorrect authorization enforcement.

Affected Products
Vendor
GitLab Inc.GitLab
Product
GitLab
Repo
git://git@gitlab.com:gitlab-org/gitlab.git
CPEs
  • cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
Default Status
unaffected
Versions
Affected
  • From 18.9 before 18.10.7 (semver)
  • From 18.11 before 18.11.4 (semver)
  • From 19.0 before 19.0.1 (semver)
Problem Types
TypeCWE IDDescription
CWECWE-863CWE-863: Incorrect Authorization
Type: CWE
CWE ID: CWE-863
Description: CWE-863: Incorrect Authorization
Metrics
VersionBase scoreBase severityVector
3.14.3MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Version: 3.1
Base score: 4.3
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Upgrade to versions 18.10.7, 18.11.4, 19.0.1 or above.

Configurations
Workarounds
Exploits
Credits
finder
Thanks [s4dmach1ne](https://hackerone.com/s4dmach1ne) for reporting this vulnerability through our HackerOne bug bounty program
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://hackerone.com/reports/3554993
technical-description
exploit
permissions-required
https://gitlab.com/gitlab-org/gitlab/-/work_items/590694
N/A
https://about.gitlab.com/releases/2026/05/27/patch-release-gitlab-19-0-1-released/
N/A
Hyperlink: https://hackerone.com/reports/3554993
Resource:
technical-description
exploit
permissions-required
Hyperlink: https://gitlab.com/gitlab-org/gitlab/-/work_items/590694
Resource: N/A
Hyperlink: https://about.gitlab.com/releases/2026/05/27/patch-release-gitlab-19-0-1-released/
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:cve@gitlab.com
Published At:28 May, 2026 | 09:16
Updated At:29 May, 2026 | 16:40

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.9 before 18.10.7, 18.11 before 18.11.4, and 19.0 before 19.0.1 that under certain conditions could have allowed a blocked Project Access Token to continue accessing private resources due to incorrect authorization enforcement.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.14.3MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Type: Secondary
Version: 3.1
Base score: 4.3
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CPE Matches
GitLab Inc.
gitlab
>>gitlab>>Versions from 18.9.0(inclusive) to 18.10.7(exclusive)
cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*
GitLab Inc.
gitlab
>>gitlab>>Versions from 18.9.0(inclusive) to 18.10.7(exclusive)
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*
GitLab Inc.
gitlab
>>gitlab>>Versions from 18.11.0(inclusive) to 18.11.4(exclusive)
cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*
GitLab Inc.
gitlab
>>gitlab>>Versions from 18.11.0(inclusive) to 18.11.4(exclusive)
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*
GitLab Inc.
gitlab
>>gitlab>>19.0.0
cpe:2.3:a:gitlab:gitlab:19.0.0:*:*:*:community:*:*:*
GitLab Inc.
gitlab
>>gitlab>>19.0.0
cpe:2.3:a:gitlab:gitlab:19.0.0:*:*:*:enterprise:*:*:*
Weaknesses
CWE IDTypeSource
CWE-863Primarycve@gitlab.com
CWE ID: CWE-863
Type: Primary
Source: cve@gitlab.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://about.gitlab.com/releases/2026/05/27/patch-release-gitlab-19-0-1-released/cve@gitlab.com
Release Notes
https://gitlab.com/gitlab-org/gitlab/-/work_items/590694cve@gitlab.com
Broken Link
https://hackerone.com/reports/3554993cve@gitlab.com
Permissions Required
Hyperlink: https://about.gitlab.com/releases/2026/05/27/patch-release-gitlab-19-0-1-released/
Source: cve@gitlab.com
Resource:
Release Notes
Hyperlink: https://gitlab.com/gitlab-org/gitlab/-/work_items/590694
Source: cve@gitlab.com
Resource:
Broken Link
Hyperlink: https://hackerone.com/reports/3554993
Source: cve@gitlab.com
Resource:
Permissions Required

Change History

0
Information is not available yet

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