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TI-2026-45067 Aliases CVE-2026-63131GHSA-xp3c-3jw3-4vcr

OpenBao LIST ACL bypass: a trailing-slash LIST request skips a more-specific deny rule (unported Vault v2.0.3 fix)

Priority LOW 27CWE-863Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
Present
Impact type
Security bypass
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-863.

Summary

OpenBao is an open source identity-based secrets management system. Prior to 2.6.0, OpenBao's vault/policy/acl.go could evaluate a broader wildcard ACL grant before more-specific trailing-wildcard ACL paths with capabilities = ["deny"] for a LIST operation. When a parent path permitted LIST and a child path was denied, the trailing-slash lookup could therefore allow listing the denied path. Other operation types are outside the repository advisory's affected scope. This issue is fixed in version 2.6.0.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00484 41st percentileScored 2026-11-07
Fix Fixed openbao (openbao): 2.6.0github.com/openbao/openbao (Go): 0.0.0-20260713133043-f58d848c139e

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
openbaoopenbaobefore 2.6.02.6.0Patch availableCNA
—github.com/openbao/openbao (Go)before 0.0.0-20260713133043-f58d848c139e0.0.0-20260713133043-f58d848c139ePatch availableGHSA-xp3c-3jw3-4vcr
—github.com/openbao/openbao (Go)0.1.0 – 1.1.5—No fix listedGHSA-xp3c-3jw3-4vcr
  • openbao Vendoropenbao Affected before 2.6.0 Fixed in 2.6.0 Patch available CNA
  • github.com/openbao/openbao (Go) Vendor— Affected before 0.0.0-20260713133043-f58d848c139e Fixed in 0.0.0-20260713133043-f58d848c139e Patch available GHSA-xp3c-3jw3-4vcr
  • github.com/openbao/openbao (Go) Vendor— Affected 0.1.0 – 1.1.5 Fixed in — No fix listed GHSA-xp3c-3jw3-4vcr

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:openbao:openbao:*:*:*:*:*:*:*:*——openbao
  • cpe:2.3:a:openbao:openbao:*:*:*:*:*:*:*:* Versions — — ·openbao

Remediation

  • Fix · CNA openbao (openbao) Fixed in 2.6.0
  • Fix · GHSA-xp3c-3jw3-4vcr github.com/openbao/openbao (Go) Fixed in 0.0.0-20260713133043-f58d848c139e Advisory →

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-63131
  2. 2026-10-03 Alias added: GHSA-xp3c-3jw3-4vcr

References

Other 8

  • TI-2024-01904 Vault Cert Auth Method Did Not Correctly Validate Non-CA Certificates CVSS 3.1CRITICAL 9.8
  • TI-2026-34075 OpenBao's Inline Auth Incorrectly Redacted Headers CVSS 4.0MEDIUM 5.4
  • TI-2026-40259 OpenBao: LDAPi ldaputil (wrong escape func) CVSS 3.1MEDIUM 6.8
  • TI-2026-40265 OpenBao: Transit secrets engine crashes on key creation with `derived: true` for asymmetric key types CVSS 3.1MEDIUM 6.5
  • TI-2026-28381 OpenBao has Decompression Bomb via Unbounded Copy in OCI Plugin Extraction (DoS) CVSS 3.1MEDIUM 6.5
  • TI-2026-45068 OpenBao's Recovery Mode Vulnerable To Token Leakage via Timing Attack CVSS 4.0CRITICAL 9.2
See all 48 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences