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TI-2026-79453 Aliases CVE-2026-115366GHSA-9c89-7cx9-85p4

Missing root namespace enforcement in OpenBao plugin catalog APIs

Priority LOW 10CWE-863Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Active
Attack complexity
Low
Attack requirements
Present
Impact type
Security bypass
Confidentiality · integrity · availability
None · None · Low
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 improper authorization flaw (CWE-863) that lets privileged child-namespace tokens modify plugin registrations, because the plugin catalog APIs are not restricted to the root namespace. An attacker with a privileged token in a child namespace can remove existing registrations, create invalid ones, or register installed plugins, which causes denial of service.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

Description from the CNA

OpenBao from 2.3.0 before 2.6.3 contains an improper authorization vulnerability that allows privileged child-namespace tokens to modify plugin registrations because /v1/sys/plugins/catalog/* is not restricted to the root namespace. Attackers can remove existing registrations, create invalid ones, or register installed plugins through a child namespace's sys/ mount, causing denial of service.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00179 7th 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
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
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, which fixes the issue and is the first version not affected.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

  • 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-2026-79452 Incorrect authorization in OpenBao policy cache allows cross-namespace accessPriority LOW 35
    • 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
    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-2026-115366
  2. 2026-10-22 Alias added: GHSA-9c89-7cx9-85p4
  3. 2026-10-26 CISA SSVC decision points changed
  4. 2026-11-03 Affected versions changed · Red Hat
  5. 2026-11-03 CVSS score added · Red Hat

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