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5.3 Medium

OpsTree BuildPiper before 2.7.0 contains an authorization bypass vulnerability that allows authenticated users to link pipeline stages to…

CVE-2026-127081

OpsTree BuildPiper before 2.7.0 contains an authorization bypass vulnerability that allows authenticated users to link pipeline stages to environments of other projects by supplying a foreign projectenvid. Attackers can submit another project's environment identifier to the POST /api/v1/pipeline/{pipelineid}/stages/ endpoint, persisting cross-project associations that bypass project separation.

Assessment

CVSS
5.3 (v4.0)
Severity
Medium
Known exploited
Not listed in CISA KEV
Exploit availability
Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published
13 November 2026
Last updated
13 November 2026
Assigner
VulnCheck

CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

At the source

References

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