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TI-2026-79452 Aliases CVE-2026-115365GHSA-w7x3-3wf8-3w6w

Incorrect authorization in OpenBao policy cache allows cross-namespace access

Priority LOW 35CWE-863Published · Updated

Key facts

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

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

Summary

OpenBao from 2.3.0 before 2.6.3 contains an incorrect authorization flaw (CWE-863) in its ACL policy cache. Specially crafted policy names let a token reference cached policies from arbitrary namespaces, including the root namespace. An attacker holding such a token can gain the capabilities of those policies and act across namespace boundaries. The CVSS 4.0 vector requires high privileges, so the attacker must already hold a token.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

Description from the CNA

OpenBao from 2.3.0 before 2.6.3 contains an incorrect authorization vulnerability in its ACL policy cache that allows tokens to reference policies from arbitrary namespaces using specially crafted policy names. Attackers holding such tokens can gain capabilities of cached policies in other namespaces, including the root namespace, to act across namespace boundaries.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00304 23rd percentileScored 2026-11-07
Fix Fixed openbao (openbao): 2.6.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
openbaoopenbao2.3.0 to before 2.6.32.6.3Patch availableCNA
  • openbao Vendoropenbao Affected 2.3.0 to before 2.6.3 Fixed in 2.6.3 Patch available CNA

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

Upgrade OpenBao to version 2.6.3 or later, which fixes the flaw.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

  • Fix · CNA openbao (openbao) Fixed in 2.6.3

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    openbao 2.6.3

    6 records Highest priority Priority LOW 6 LOW

    Other records, highest priority first

    • TI-2026-79447 Open redirect in OpenBao OIDC identity provider UIPriority LOW 30
    • TI-2026-79451 Missing authorization in OpenBao lets attackers stop Agent and ProxyPriority LOW 11
    • TI-2026-79448 ACL bypass in OpenBao drops templated deny rulesPriority LOW 11
    Show all 6 records →

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-22 Threatist record created from CVE-2026-115365
  2. 2026-10-22 Alias added: GHSA-w7x3-3wf8-3w6w
  3. 2026-10-23 Priority changed: MEDIUM → LOW
  4. 2026-10-24 Affected versions changed · Red Hat
  5. 2026-10-24 CVSS score added · Red Hat
  6. 2026-11-04 CISA SSVC decision points changed

References

Advisory 1

  • 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