{"id":"CVE-2026-81680","aliases":["PYSEC-2026-3957","GHSA-grhj-cpmg-f5mx"],"title":"openssl_encrypt versions before 1.4.9 fail to authenticate recovery-slot presence in envelope-format encrypted files, allowing attackers …","summary":"openssl_encrypt versions before 1.4.9 fail to authenticate recovery-slot presence in envelope-format encrypted files, allowing attackers to remove recovery slots without re-encrypting the payload. Attackers can modify the file header to …","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","vendor":"openssl-encrypt","product":"openssl-encrypt","ecosystem":"pip","affected":["openssl-encrypt < 1.4.9"],"patched":["openssl-encrypt 1.4.9"],"published":"2026-08-27","updated":"2026-09-10","sourceUpdated":"2026-09-10T13:00:04.168780900Z","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/PYSEC-2026-3957","references":[{"url":"https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-grhj-cpmg-f5mx"},{"url":"https://www.vulncheck.com/advisories/openssl-encrypt-before-1.4.9-authentication-bypass-via-recovery-slot-removal"}],"tags":["osv","pip"],"epss":0.00145,"epssPercentile":0.04149,"ingestedAt":"2026-09-12T03:13:01.743Z","slug":"CVE-2026-81680","body":"## Overview\n\nopenssl_encrypt versions before 1.4.9 fail to authenticate recovery-slot presence in envelope-format encrypted files, allowing attackers to remove recovery slots without re-encrypting the payload. Attackers can modify the file header to delete recovery-slot fields and bypass authentication, silently removing recovery paths the owner deliberately added.\n\n## Affected packages\n\n- `openssl-encrypt < 1.4.9`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `openssl-encrypt 1.4.9`","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}