CVE-2026-74877

High

Description

openssl_encrypt versions before 1.4.0 contain a missing ownership verification vulnerability in the revoke_key method that allows authenticated clients to revoke any other client's key. Attackers can revoke arbitrary keys by providing a valid ML-DSA signature, bypassing the intended ownership restriction.

SeverityHigh

CVSS8.8

Exploit probability—

ProductJahlives Openssl Encrypt

PublishedAug 17, 2026

First seenAug 17, 2026

Weakness typeCWE-639Authorization bypass through user-controlled key

How to fix

Update

jahlives openssl_encrypt1.4.0 or later
openssl-encrypt1.4.0 or later

Vendor advisories

github.com/jahlives/openssl_encrypt/security/advisories/GHSA-hvc7-763r-4f3h

Affected products

Product	Affected versions	Fixed in
jahlives openssl_encrypt	v < 1.4.0	1.4.0
openssl-encryptPyPI	v < 1.4.0	1.4.0

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