CVE-2026-126309

Description

OpenBao before 2.6.5 and 2.7.2 contains a path traversal vulnerability in Transit key import that allows authenticated attackers to bypass name restrictions in ACL policies. Attackers limited by a required_parameters name constraint can craft traversal sequences during import to write key material under arbitrary Transit key names.

Severity scores

Each score is shown as its source gave it. They are not averaged or merged.

• 7.6CVSS 4.0, Highfrom the CNA (VulnCheck)CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
• 7.1CVSS 3.1, Highfrom the CNA (VulnCheck)CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L

Historical context and remediation

This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.

No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.

No explicit remediation statement is available on this page yet. Consult the original record and vendor references before choosing a fix.

Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.

Read the original CVE record.

Affected products

Timeline

1. 13 Nov 2026 Published

Weakness

• CWE-73

References

• GitHub Security Advisory (GHSA-5pmx-2p74-x478)vendor-advisory
• VulnCheck Advisory: OpenBao before 2.6.5 and 2.7.2 Path Traversal in Transit Key Importthird-party-advisory