by Kastro
Paper/Archive/CVE-2026-81680

CVE-2026-81680

jahlives openssl_encrypt — openssl_encrypt before 1.4.9 Authentication Bypass via Recovery Slot Removal

EPSS 0.2%CVSS 9.3
critical.is priorityof 100
30
CVSS 9.3 (CNA)9.3 / 10 × 3027.9Not in CISA KEV+300.0EPSS percentile 10.4.104 × 202.1No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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 delete recovery-slot fields and bypass authentication, silently removing recovery paths the owner deliberately added.

Affected

ProductAffectedFixed inSource
openssl_encrypt< 1.4.91.4.9CNA

Scores by source

VulnCheck (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
VulnCheck (CNA)4.0CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: partial

References

advisorygithub.com/jahlives/openssl_encrypt/security/advisories/GHSA-grhj-cpmg-f5mxwriteupvulncheck.com/advisories/openssl-encrypt-before-1.4.9-authentication-bypass-via-recovery-slot-removal