Resource exhaustion in Jahlives OpenSSL Encrypt
CVE-2026-74878
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.007 (53.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 53.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.007 · change: +0.004
Affected products
- Jahlives OpenSSL Encrypt — versions 0, 1.4.0
Weakness classification (CWE)
References
- GitHub Security Advisory (GHSA-h45m-mgcp-q388) (vendor-advisory, Mitigation, Vendor Advisory)
- VulnCheck Advisory: openssl_encrypt before 1.4.0 TOTP Rate Limiter Bypass (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-74878?
- CVE-2026-74878 is a critical-severity vulnerability in Jahlives OpenSSL Encrypt, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 9.8/10. Published 2026-08-17.
- How severe is CVE-2026-74878?
- Critical severity. CVSS v3 base score is 9.8 out of 10.