Missing Cryptographic Step Affecting openssl package, versions [3.0.5,3.1.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CONAN-OPENSSL-17277062
- published10 Jun 2026
- disclosed9 Jun 2026
- creditAlex Gaynor
Introduced: 9 Jun 2026
NewCVE-2026-42770 (opens in a new tab)How to fix?
Upgrade openssl to version 3.1.0 or higher.
Overview
Affected versions of this package are vulnerable to Missing Cryptographic Step in EVP_PKEY_derive_set_peer() when called with a DHX (X9.42) peer key. A malicious peer can recover the victim's private key. A peer presenting an X9.42 key that carries the victim's p and g, and a forged q passes all checks, eventually leaking the full private key.