Medium severity6.2OSV Advisory· Published Aug 17, 2026· Updated Sep 10, 2026
CVE-2026-74871
CVE-2026-74871
Description
openssl_encrypt versions before 1.4.6 contain a key derivation flaw in sequential XOR composition mode where the last stage cancels out during key generation. When configured with a single KDF and no prior hashing stage, attackers can bypass memory-hard key derivation and perform offline password cracking at SHA-256 speed instead of the configured KDF cost.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2v1.4.5, v1.4.4, v1.4.2, …+ 1 more
- (no CPE)range: v1.4.5, v1.4.4, v1.4.2, …
- (no CPE)range: <1.4.6
Patches
Vulnerability mechanics
References
2- github.com/jahlives/openssl_encrypt/security/advisories/GHSA-vxf9-vwp6-2w43nvdMitigationVendor Advisory
- www.vulncheck.com/advisories/openssl-encrypt-before-kdf-bypass-via-sequential-xornvdThird Party Advisory
News mentions
0No linked articles in our index yet.