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.
CVSS 9.8EPSS 0.372%Risk 1.01
View source- Published
- 2026-08-17 11:16:42
- Affected versions
- <1.4.0
- Type
- Library
- Last modified
- 2026-08-17 15:16:58
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H