CryptX versions before 0.088 for Perl do not reseed the Crypt::PK PRNG state after forking.
The Crypt::PK::RSA, Crypt::PK::DSA, Crypt::PK::DH, Crypt::PK::ECC, Crypt::PK::Ed25519 and Crypt::PK::X25519 modules seed a per-object PRNG state in their constructors and reuse it without fork detection. A Crypt::PK::* object created before `fork()` shares byte-identical PRNG state with every child process, and any randomized operation they perform can produce identical output, including key generation. Two ECDSA or DSA signatures from different processes are enough to recover the signing private key through nonce-reuse key recovery.
This affects preforking services such as the Starman web server, where a Crypt::PK::* object loaded at startup is inherited by every worker process.
References
Configurations
No configuration.
History
23 Apr 2026, 14:16
| Type | Values Removed | Values Added |
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| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.5 |
| References | () https://github.com/DCIT/perl-CryptX/security/advisories/GHSA-24c2-gp6c-24c6 - |
23 Apr 2026, 10:16
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
23 Apr 2026, 08:16
| Type | Values Removed | Values Added |
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| New CVE |
Information
Published : 2026-04-23 08:16
Updated : 2026-04-24 14:50
NVD link : CVE-2026-41564
Mitre link : CVE-2026-41564
CVE.ORG link : CVE-2026-41564
JSON object : View
Products Affected
No product.