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Medium · 4.0 CVE-2026-81680 EUVD-2026-67036GHSA-59ww-7vhf-hj2qGHSA-grhj-cpmg-f5mxPYSEC-2026-3957

openssl_encrypt before 1.4.9 Authentication Bypass via Recovery Slot Removal

Published Aug 27, 2026 · Updated Oct 1, 2026 · Assigned by VulnCheck

Description

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 products

VendorProductAffectedFixed
jahlives openssl_encrypt < 1.4.9 1.4.9

Affected packages

EcosystemPackageAffectedFixedRecord
PyPI openssl-encrypt < 1.4.9 1.4.9 PYSEC-2026-3957

References