{"cve":"CVE-2026-81704","nvd":{"published":"2026-08-27T17:21:00.993","modified":"2026-09-03T15:09:32.657","status":"Analyzed","description":"openssl_encrypt versions before 1.4.9 contain a weak key derivation vulnerability in the D-Bus CryptoService.EncryptFile handler that uses unstretched SHA-256 instead of Argon2id. Attackers can perform offline password guessing against encrypted files roughly six to seven orders of magnitude faster than documented protection by exploiting the missing key stretching and hash rounds.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","score":8.7},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","score":7.5},"cwes":["CWE-916"],"references":["https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-v9r6-grch-fxw7","https://www.vulncheck.com/advisories/openssl-encrypt-before-1.4.9-weak-key-derivation-via-d-bus"],"products":["jahlives:openssl_encrypt"],"source":"nvd","synced_at":"2026-10-19T22:50:17.453294893+00:00"},"epss":{"cve":"CVE-2026-81704","score":0.00272,"percentile":0.19559,"date":"2026-11-01"},"kev":null,"osv":[{"id":"PYSEC-2026-3963","url":"https://osv.dev/vulnerability/PYSEC-2026-3963","summary":"","modified":"2026-09-10T13:00:04.160077184Z","packages":[{"ecosystem":"PyPI","name":"openssl-encrypt","purl":"pkg:pypi/openssl-encrypt","ranges":["<1.4.9"],"fixed":["1.4.9"]}]}],"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."]}