# CVE-2026-74888

## Summary

- **CVE ID:** CVE-2026-74888
- **Severity:** HIGH
- **CVSS Score:** 8.7 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N)
- **CWE:** CWE-327
- **Published:** Aug 17, 2026
- **Last Modified:** Aug 17, 2026

## Description

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.

## Affected Products

- jahlives — openssl_encrypt (0)
- jahlives — openssl_encrypt (1.4.0)

## References

- [CNA](https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-743f-89fg-x288)
- [CNA](https://www.vulncheck.com/advisories/openssl-encrypt-before-non-standard-pbkdf2-key-derivation)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.17%
- **EPSS Percentile:** 6.2

---
_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._