CVE-2026-74877CWE-639

CVE-2026-74877

High · published August 17, 2026

CVSS v3.1
8.8
EPSS
0%
Percentile
38.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
8.7 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00451 · 38.2th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-08-17T15:16Z
Affected products (1)
ProductVersionsFixed in
jahlives/openssl_encrypt< 1.4.01.4.0
References (2)
https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-hvc7-763r-4f3h · [email protected]https://www.vulncheck.com/advisories/openssl-encrypt-before-missing-ownership-verification-via-revoke-key · [email protected]
EPSS history
Timeline
  • 17 AUG 11:04Z
    openssl_encrypt before 1.4.0 Missing Ownership Verification via revoke_key
    cvelistv5