SB20261110360 - Improper Authentication in Azure DevOps Server
Published: November 10, 2026
Security Bulletin ID
SB20261110360
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Privilege escalation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper Authentication (CVE-ID: CVE-2026-109467)
CWE-ID: CWE-287 - Improper Authentication
CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a remote user to execute arbitrary code on pipeline agents.
The vulnerability exists due to improper authentication in Azure DevOps when handling requests to execute pipelines. A remote user can send a specially crafted network request with Project Reader access to an affected organization to trigger unauthorized pipeline execution and execute arbitrary code on pipeline agents.
Remediation
Install update from vendor's website.