VULNERABILITY INTELLIGENCE

CVE-2026-74878

CVSS score9.8 CRITICAL
EPSS probability0.75%
CISA KEVNot currently listed
Published2026-08-17
Last modified2026-10-08
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

openssl_encrypt versions before 1.4.0 use an in-memory rate limiter for TOTP brute-force protection that is not shared across workers and is lost on server restart. Attackers can distribute authentication attempts across multiple server instances or retry immediately after a restart to bypass rate limiting protections.

Weakness classification

  • disclosure@vulncheck.com: CWE-770

Primary references