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CVE-2026-127074

MEDIUMCVSS 4.3/10EPSS 0.38%

Last modified

CVE-2026-127074 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. OpsTree BuildPiper before 2.7.0 contains a path traversal vulnerability that allows authenticated users with build configuration permission to read files on the build worker by supplying unvalidated dockerfile_path and build context values. Attackers can set traversal or absolute paths such as /etc/passwd via the CI configuration endpoint, then trigger a build to disclose file contents in the build log.. EPSS estimates a 0.38% chance of exploitation in the next 30 days.

Description

OpsTree BuildPiper before 2.7.0 contains a path traversal vulnerability that allows authenticated users with build configuration permission to read files on the build worker by supplying unvalidated dockerfile_path and build context values. Attackers can set traversal or absolute paths such as /etc/passwd via the CI configuration endpoint, then trigger a build to disclose file contents in the build log.

Metrics

CVSS 3.1
4.3/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CVSS 4.0
5.3/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability
0.38%

32.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
OpsTree SolutionsBuildPiper< 2.7.0

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is CVE-2026-127074?
OpsTree BuildPiper before 2.7.0 contains a path traversal vulnerability that allows authenticated users with build configuration permission to read files on the build worker by supplying unvalidated dockerfile_path and build context values. Attackers can set traversal or absolute paths such as /etc/passwd via the CI configuration endpoint, then trigger a build to disclose file contents in the build log.
How severe is CVE-2026-127074?
CVE-2026-127074 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.38% probability of exploitation in the next 30 days.
How do I fix CVE-2026-127074?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST