CVE-2026-5052
Vault’s PKI engine’s ACME validation did not reject local targets when issuing http-01 and tls-alpn-01 challenges. This may lead to these requests being sent to local network targets, potentially leading to information disclosure. Fixed in Vault Community Edition 2.0.0 and Vault Enterprise 2.0.0, 1.21.5, 1.20.10, and 1.19.16.
- Affected products
- Red Os, Vault Community Edition, Vault Enterprise
- Hashicorp Vault
- < 1.19.16, 2.0.0, 1.20.10, 1.21.5
- Fix
- Available
- CVSS 3.1
- 8.6 HIGH
- EPSS
- 0.3% (26th percentile)
- Weakness
- CWE-918
- NVD status
- Analyzed
- Published
- 2026-04-17
- Attack patterns
- CAPEC-118
CVE-2026-5052 at NVD
No indexed exploits for CVE-2026-5052 yet
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No exploit for CVE-2026-5052 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.