{"cve":"CVE-2026-53712","nvd":{"published":"2026-07-17T19:17:16.880","modified":"2026-10-24T20:10:00.137","status":"Awaiting Analysis","description":"SCRAM (Salted Challenge Response Authentication Mechanism) is part of the family of Simple Authentication and Security Layer (SASL, RFC 4422) authentication mechanisms. Prior to 3.3, a flaw in com.ongres.scram:scram-client and com.ongres.scram:scram-common allows an attacker capable of a TLS man-in-the-middle attack to silently downgrade a connection from SCRAM-SHA-256-PLUS with channel binding to standard SCRAM-SHA-256 without channel binding when TlsServerEndpoint processes an X.509 certificate using a modern signature algorithm such as Ed25519; getChannelBindingData() can return an empty byte array after NoSuchAlgorithmException, and the ScramClient builder treats that as absent channel-binding data. This issue is fixed in version 3.3.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:L/SA:N","score":8.2},"cvss_v3":null,"cwes":["CWE-636","CWE-757"],"references":["https://github.com/ongres/scram/releases/tag/3.3","https://github.com/ongres/scram/security/advisories/GHSA-p9jg-fcr6-3mhf"],"products":[],"source":"nvd","synced_at":"2026-10-25T17:50:08.599881581+00:00"},"epss":{"cve":"CVE-2026-53712","score":0.0026,"percentile":0.17547,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-p9jg-fcr6-3mhf","url":"https://osv.dev/vulnerability/GHSA-p9jg-fcr6-3mhf","summary":"OnGres SCRAM silent channel-binding authentication downgrade via unsupported certificate algorithms","modified":"2026-07-01T22:11:32.861485Z","packages":[{"ecosystem":"Maven","name":"com.ongres.scram:scram-client","purl":"pkg:maven/com.ongres.scram/scram-client","ranges":["<3.3"],"fixed":["3.3"]},{"ecosystem":"Maven","name":"com.ongres.scram:scram-common","purl":"pkg:maven/com.ongres.scram/scram-common","ranges":["<3.3"],"fixed":["3.3"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}