What is GHSA-xg65-9m9r-rm73?

GHSA-xg65-9m9r-rm73 is a security advisory published by GitHub Security Advisories with High severity. openssl_encrypt versions before 1.4.9 derive the remote-pepper wrap key using unsalted HKDF...

Which CVE IDs does GHSA-xg65-9m9r-rm73 cover?

GHSA-xg65-9m9r-rm73 covers the following CVE IDs: CVE-2026-81689. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-xg65-9m9r-rm73?

GHSA-xg65-9m9r-rm73 has a CVSS v3 base score of 7.5, published by GitHub Security Advisories.

GHSA-xg65-9m9r-rm73HighCVSS 7.5

openssl_encrypt versions before 1.4.9 derive the remote-pepper wrap key using unsalted HKDF...

Vendor

GitHub Security Advisories

Published

August 27, 2026

Last Modified

August 27, 2026

🔗 CVE IDs covered (1)

CVE-2026-81689 →

📋 Description

openssl_encrypt versions before 1.4.9 derive the remote-pepper wrap key using unsalted HKDF-SHA256 or bare SHA-256 of the password, allowing identical keys across all users and files. Attackers with access to wrapped pepper blobs can precompute a single dictionary table and perform fleet-wide offline password guessing at hardware speed to recover user passwords.

🔗 References (4)

https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-3v63-778v-3mvp
https://nvd.nist.gov/vuln/detail/CVE-2026-81689
https://www.vulncheck.com/advisories/openssl-encrypt-before-1.4.9-weak-pepper-key-derivation
https://github.com/advisories/GHSA-xg65-9m9r-rm73