HIGH 8.7 NVD
CVE-2026-81687
openssl_encrypt versions before 1.4.9 fail to enforce a time ceiling on key derivation function iteration counts specified in file metadata. Attackers can craft
openssl_encrypt versions before 1.4.9 fail to enforce a time ceiling on key derivation function iteration counts specified in file metadata. Attackers can craft files with extremely high KDF iteration counts to consume CPU resources for unbounded periods before password verification occurs.
References
- https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-rv6w-7hq9-pr74
- https://www.vulncheck.com/advisories/openssl-encrypt-before-1.4.9-denial-of-service-via-kd
This high severity vulnerability with a CVSS score of 8.7 was published on 2026-08-27 via NVD.
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