CVE-2026-41564
Description
A flaw was found in CryptX. CryptX versions before 0.088 for Perl do not properly reseed the pseudo-random number generator (PRNG) state after a process forks. This vulnerability allows an attacker to recover the signing private key by observing two signatures from different child processes, as the PRNG state is shared and produces identical output. This issue primarily impacts preforking services that utilize CryptX, such as the Starman web server.
Statement
Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references.
Understanding the Weakness (CWE)
Access Control,Other
Technical Impact: Bypass Protection Mechanism; Other
If a PRNG is used incorrectly, such as using the same seed for each initialization or using a predictable seed, then an attacker may be able to easily guess the seed and thus the random numbers. This could lead to unauthorized access to a system if the seed is used for authentication and authorization.
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