TI-2026-79443 Aliases CVE-2026-115356 GHSA-qmv6-f44g-mj35

OpenBao Kubernetes Auth Token Renewal Keeps Access After Account Deletion

LOW 23CWE-613Published 2026-10-22 · Updated 2026-10-23

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-613.

Summary

OpenBao before 2.6.4 and 2.7.x before 2.7.1 does not verify, when renewing a token issued by the Kubernetes Auth method, that the service account token originally used to authenticate is still valid. An authenticated attacker can keep renewing such tokens to persist access after the Kubernetes service account has been deleted.

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

Description from the CNA

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00213 11th percentileScored 2026-11-07

Fix Fixed openbao (openbao): 2.6.4, 2.7.1

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

Vendor	Product	Affected versions	Fixed in	Status	Source
openbao	openbao	before 2.6.4; 2.7.0 to before 2.7.1	2.6.4, 2.7.1	Patch available	CNA

openbao Vendoropenbao Affected before 2.6.4; 2.7.0 to before 2.7.1 Fixed in 2.6.4, 2.7.1 Patch available CNA

CPE names Threatist (inferred) · 1

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

CPE	Versions	Role	Vendor
cpe:2.3:a:openbao:openbao::::::::	—	—	openbao

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

Remediation

Upgrade OpenBao to version 2.6.4 or 2.7.1, which fix the issue. The CVSS 4.0 score is 5.3 (MEDIUM), and CWE-613 (Insufficient Session Expiration) is the associated weakness.

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

Fix · CNA openbao (openbao) Fixed in 2.6.4, 2.7.1

Fixed in the same release

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

Release · 2026-10-22
openbao 2.6.4, 2.7.1
5 records Highest priority Priority LOW 5 LOW
Other records, highest priority first
- TI-2026-79446 OpenBao Role-Based Rate Limit Quota Bypass via Request ParsingPriority LOW 27
- TI-2026-79449 OpenBao AppRole accepts expired Secret IDs until periodic tidyPriority LOW 11
- TI-2026-79444 OpenBao drops response audit logs for root generation and rekeyPriority LOW 11
Show all 5 records →

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product

Red Hat

Timeline

2026-10-22 Threatist record created from CVE-2026-115356
2026-10-22 Alias added: GHSA-qmv6-f44g-mj35
2026-10-23 CISA SSVC decision points changed
2026-11-03 Affected versions changed · Red Hat
2026-11-03 CVSS score added · Red Hat

References

Advisory 1

GitHub Security Advisory (GHSA-gf3j-hm38-jhh5)

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