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CVE-2026-127080VulnerabilityPublished

OpsTree BuildPiper before 2.7.0 contains an improper authorization vulnerability that allows authenticated deploy

Source GCVE Database

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Authoritative record:CVE-2026-127080· Critical 9.4

Not known to be exploited · CVSS 9.4 Critical : upgrade to 2.7.0 as a priority.

Data as of 13 Nov 2026, 13:52 UTC

CVSS 4.0 base score
9.4Critical
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (VulnCheck)CVSS 4.09.4
CNA (VulnCheck)CVSS 3.19.9
Patch
Available – fixed in 2.7.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 13 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.

What to do

Upgrade BuildPiper and opstree/buildpiper to 2.7.0.

Affected software

ProductAffectedFixed in
OpsTree SolutionsBuildPiperAffected
  • <2.7.0
Fixed in
  • 2.7.0
GitHubopstree/buildpiperpkg:github/opstree/buildpiperOther threatsAffected
  • <2.7.0
Fixed in
  • 2.7.0

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A fix is available in OpsTree BuildPiper version 2.7.0 and later. Users should upgrade to version 2.7.0 or above to remediate this vulnerability. Since this is not a cloud service, manual patching is required. No vendor advisory content was provided to indicate alternative mitigations or temporary workarounds.

Description

OpsTree BuildPiper versions before 2.7.0 have an improper authorization vulnerability that allows authenticated deploy users to define arbitrary Kubernetes hostPath volumes without restrictions. This flaw enables attackers to mount the worker node root filesystem with read-write access, breaking container isolation and potentially leading to node and cluster compromise.

References

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