{"id":"CVE-2026-5052","revision":"62db799e6c2b4264bb1d85105f29d1bc","records":[{"revision":"62db799e6c2b4264bb1d85105f29d1bc","observedAt":"2026-10-25T13:17:10.707+00:00","statement":{"source":"nvd","id":"CVE-2026-5052","aliases":[],"title":"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 …","description":"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.","state":0,"publishedAt":"2026-04-17T04:16:12.567+00:00","modifiedAt":"2026-06-17T10:58:20.573+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security@hashicorp.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","score":5.3,"severity":"MEDIUM"},{"system":"CVSS 3.1 · nvd@nist.gov · Primary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","score":8.6,"severity":"HIGH"}],"references":["https://discuss.hashicorp.com/t/hcsec-2026-06-vault-vulnerable-to-server-side-request-forgery-in-acme-challenge-validation-via-attacker-controlled-dns/77343"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-5052","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-918"],"productCriteria":["cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:*","cpe:2.3:a:hashicorp:vault:*:*:*:*:-:*:*:*"],"sourceDates":{"published":"2026-04-17T04:16:12.567","lastModified":"2026-06-17T10:58:20.573"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-5052","identifiers":["CVE-2026-5052"]},"retained":false,"historicalAffected":[]}],"coverage":[]}