TI-2026-69329 Aliases CVE-2026-105820 GHSA-4rj6-p7m7-65jf

Path traversal in Vault ACL policy cache exposes other namespaces

LOW 24CWE-22Published 2026-10-07 · Updated 2026-10-08

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: Low · Low · None
Fix status: Partial Red Hat: 1 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.

Summary

HashiCorp Vault Enterprise from 0.0.1 before 2.1.2 is affected. A path traversal flaw (CWE-22) in the ACL policy cache lets a token with specially crafted policy names use policies defined in other namespaces, including the root namespace. An attacker with low privileges and network access can exploit it without user interaction. Vault Community Edition does not support namespaces and is not affected.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

Vault's ACL policy cache allowed namespace traversal when policy names contained path traversal constructs. This may allow a token assigned specially crafted policy names to use the capabilities of policies defined in other namespaces, including the root namespace. This vulnerability (CVE-2026-105820) is fixed in Vault Enterprise 2.1.2, 1.21.12, 1.20.17, and 1.19.23. Vault Community Edition does not support namespaces, and is not affected.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00249 16th percentileScored 2026-11-07

Fix Partial Vault Enterprise (HashiCorp): 2.1.2Red Hat: 1 without a fix

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
HashiCorp	Vault Enterprise	0.0.1 to before 2.1.2	2.1.2	Patch available	CNA

Vault Enterprise VendorHashiCorp Affected 0.0.1 to before 2.1.2 Fixed in 2.1.2 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:hashicorp:vault::::::::	—	—	HashiCorp

cpe:2.3:a:hashicorp:vault:*:*:*:*:*:*:*:* Versions — — ·HashiCorp

Remediation

Upgrade Vault Enterprise to 2.1.2, 1.21.12, 1.20.17 or 1.19.23. Red Hat lists Red Hat Openshift Data Foundation 4 as affected without a fix.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Fix · CNA Vault Enterprise (HashiCorp) Fixed in 2.1.2

Fixed in the same release

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

Release · 2026-10-07
HashiCorp Vault Enterprise 2.1.2
4 records Highest priority Priority LOW 4 LOW
Other records, highest priority first
- TI-2026-69328 Path traversal in HashiCorp Vault plugin catalog allows code executionPriority LOW 37
- TI-2026-69326 HashiCorp Vault ACL policy checks can bypass explicit deny rulesPriority LOW 33
- TI-2026-69320 Vault PKI ACME server issues certificates with unvalidated identitiesPriority LOW 25
Show all 4 records →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Product	Status	Plan or fix
Red Hat Openshift Data Foundation 4	Affected	—

Timeline

2026-10-07 Threatist record created from CVE-2026-105820
2026-10-08 Alias added: GHSA-4rj6-p7m7-65jf
2026-10-08 CISA SSVC decision points changed
2026-10-08 Priority changed: MEDIUM → LOW
2026-10-16 Affected versions changed · Red Hat
2026-10-16 CVSS score added · Red Hat

References

Other 1

https://discuss.hashicorp.com/t/hcsec-2026-42-vault-enterprise-acl-policy-cache-vulnerable-to-cross-namespace-policy-resolution/77814

TI-2024-01904 Vault Cert Auth Method Did Not Correctly Validate Non-CA Certificates CVSS 3.1CRITICAL 9.8
TI-2021-18437 HashiCorp Consul Enterprise before 1.8.17, 1.9.x before 1.9.11, and 1.10.x before 1.10.4… CVSS 3.1HIGH 8.8
TI-2026-06570 Nomad vulnerable to path traversal in dynamic host volume which may lead to code execution CVSS 3.1HIGH 8.8
TI-2020-17753 The official Consul Docker images 0.7.1 through 1.4.2 contain a blank password for a root… CVSS 3.1CRITICAL 9.8
TI-2026-13641 consul-mcp-server vulnerable to cross-tenant credential reuse in streamable-HTTP stateless mode CVSS 3.1CRITICAL 10.0
TI-2026-13778 terraform-mcp-server vulnerable to cross-tenant credential reuse in streamable-HTTP stateless mode CVSS 3.1CRITICAL 10.0

See all 246 →

Sources

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