{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-11-11T20:42:55.637","vulnerabilities":[{"cve":{"id":"CVE-2026-64855","sourceIdentifier":"security-advisories@github.com","published":"2026-11-11T16:17:25.370","lastModified":"2026-11-11T16:17:25.370","vulnStatus":"Received","cveTags":[],"descriptions":[{"lang":"en","value":"soapbar is a SOAP library for Python — client, server, and WSDL handling. Prior to version 0.13.0, verify_envelope_bsp() derived its trust anchor from the message it was verifying. It read the X.509 certificate out of the caller-untrusted wsse:BinarySecurityToken, validated only that certificate's not-before / not-after dates, and then verified the signature against that same certificate. There was no CA-chain validation, no issuer/subject allowlist, and no pinning. A successful verify_envelope_bsp() therefore proved only that the envelope was signed by whoever supplied the embedded certificate — never that it was signed by a trusted party. An attacker who mints their own certificate, signs a forged envelope, and embeds that certificate in the token passes verification. Any consumer that treats a successful BSP verification as authentication can be impersonated (signature forgery / authentication bypass). verify_envelope() (which pins a caller-supplied x509_cert) was not affected — the flaw was specific to the BSP variant whose trust anchor came from the message. This issue has been patched in version 0.13.0."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"hitoshyamamoto","product":"soapbar","versions":[{"version":"< 0.13.0","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N","baseScore":8.2,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":3.9,"impactScore":4.2}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Primary","description":[{"lang":"en","value":"CWE-295"},{"lang":"en","value":"CWE-347"}]}],"references":[{"url":"https://github.com/hitoshyamamoto/soapbar/pull/71","source":"security-advisories@github.com"},{"url":"https://github.com/hitoshyamamoto/soapbar/releases/tag/v0.13.0","source":"security-advisories@github.com"},{"url":"https://github.com/hitoshyamamoto/soapbar/security/advisories/GHSA-859w-52fx-hcm6","source":"security-advisories@github.com"}]}}]}