{"id":"CVE-2026-13455","summary":"PostgreSQL Anonymizer: Unrestricted function can leak the secret salt","details":"PostgreSQL Anonymizer contains a vulnerability that allows unprivileged masked users to repeatedly call the anon.hash() function and collects (seed, hash_output) pairs to perform an offline brute-force attack and deduce the salt. The problem is resolved in PostgreSQL Anonymizer 3.1.2 and later versions","modified":"2026-07-08T07:53:24.013789412Z","published":"2026-06-30T15:19:57.657Z","database_specific":{"cwe_ids":["CWE-328"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/13xxx/CVE-2026-13455.json","cna_assigner":"PostgreSQL"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/13xxx/CVE-2026-13455.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-13455"},{"type":"REPORT","url":"https://gitlab.com/dalibo/postgresql_anonymizer/-/issues/649"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://gitlab.com/dalibo/postgresql_anonymizer","events":[{"introduced":"c79d5b610629a197f1eb4c868168c8cba9db4868"},{"fixed":"5e3e4556e53a5535f47de3f7f99571023933a0c1"}],"database_specific":{"source":["AFFECTED_FIELD","CPE_RANGE"],"extracted_events":[{"introduced":"1"},{"fixed":"3.1.2"},{"introduced":"0"},{"last_affected":"3.1.2"}],"cpe":"cpe:2.3:a:dalibo:postgresql_anonymizer:*:*:*:*:*:postgresql:*:*"}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-13455.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"}]}