Vulnerability in Jahlives OpenSSL Encrypt
CVE-2026-74888
openssl_encrypt versions before 1.4.0 use a non-standard PBKDF2 key derivation construction with iterations=1 per call in an outer loop, creating a KDF whose security properties have not been formally analyzed. Attackers can exploit this weakened key derivation to more efficiently crack passwords protecting legacy encrypted files compared to standard PBKDF2 implementations.
Vulnerability class: POODLE (CVE-2014-3566)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.003 (17.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 18th percentile — 17.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001
Affected products
- Jahlives OpenSSL Encrypt — versions 0, 1.4.0
Weakness classification (CWE)
References
- GitHub Security Advisory (GHSA-743f-89fg-x288) (vendor-advisory, Vendor Advisory)
- VulnCheck Advisory: openssl_encrypt before 1.4.0 Non-Standard PBKDF2 Key Derivation (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-74888?
- CVE-2026-74888 is a high-severity vulnerability in Jahlives OpenSSL Encrypt, classified under Use of a Broken or Risky Cryptographic Algorithm. CVSS score: 7.5/10. Published 2026-08-17.
- How severe is CVE-2026-74888?
- High severity. CVSS v3 base score is 7.5 out of 10.