# CVE-2026-93335: Vault vulnerable to ACL deny bypass via trailing slash

Status: published. Published: 2026-11-12. Updated: 2026-11-12.

Vault Community Edition and Vault Enterprise did not consistently apply explicit ACL policy deny rules to request paths that differ only by a trailing slash. This may allow an authenticated user who holds a broader delete permission on system configuration paths to disable a secrets engine, auth method, or audit device that a more specific deny rule was intended to protect. This vulnerability (CVE-2026-93335) is fixed in Vault Community Edition 2.2.2 and Vault Enterprise 2.2.2, 1.21.14, and 1.19.25.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- HashiCorp / Vault: ≥ 0.2.0; < 2.2.2 (affected, semver). Source: CNA: HashiCorp; platforms: 64 bit, 32 bit, x86, ARM, MacOS, Windows, Linux
- HashiCorp / Vault Enterprise: ≥ 0.2.0; < 2.2.2 (affected, semver); unaffected at 1.19.25; unaffected at 1.21.14. Source: CNA: HashiCorp; platforms: 64 bit, 32 bit, x86, ARM, MacOS, Windows, Linux

## Severity and prioritization

- CVSS 3.1: 6.5 (medium); CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H; source: CNA: HashiCorp

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-647

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://discuss.hashicorp.com/t/hcsec-2026-56-vault-vulnerable-to-acl-deny-bypass-via-trailing-slash/78199 (CNA: HashiCorp)

## Provenance

- CNA: HashiCorp: https://www.cve.org/CVERecord?id=CVE-2026-93335; retrieved 2026-11-12; source updated 2026-11-12

Revision: 32461a9eb691ff1fe0fd3fb1fcaf3d287a225c5d6f8b06b170eaadadb5c58ecd

Canonical: https://y2.dev/cve/CVE-2026-93335

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.