PUBLISHED
2026-05-11 08:16
MODIFIED
2026-05-11 08:16
EPSS (Prob. Exploit)
0.33%
Top 73.9%
> DESCRIPTION
WebDyne::Session versions through 2.075 for Perl generates the session id insecurely.
The session handler generates the session id from an MD5 hash seeded with a call to the built-in rand() function. The rand function is passed a maximum value based on the process id, the epoch time and the reference address of the object, but this information will have no effect on the overall quality of the seed of the message digest.
The rand function is seeded by 32-bits and is predictable. It is considered unsuitable for cryptographic purposes.
Predictable session ids could allow an attacker to gain access to systems.
Note that WebDyne::Session versions 1.042 and earlier appear to be in separate distributions from WebDyne.
> AFFECTED_PRODUCTS
ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.
> CWE DETAILED DESCRIPTIONS
CWE-338: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) - The product uses a Pseudo-Random Number Generator (PRNG) in a security context, but the PRNG's algorithm is not cryptographically strong. | CWE-340: Generation of Predictable Numbers or Identifiers - The product uses a scheme that generates numbers or identifiers that are more predictable than required.
> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)
WebDyne::Session versions before 3.003_704 for Perl generate the session id insecurely
AFFECTED PACKAGES:
Unknown / Unknown
205 versions affected
> HISTORIQUE DES MODIFICATIONS
Première apparition
11/05/2026 08:16
Source: NVD
📊
ENRICHISSEMENT
01/06/2026 06:01
CWE
Champ modifié: Description CWE
Nouvelle valeur:
CWE-338: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) - The product uses a Pseudo-Random Number Generator (PRNG) in a security context, but the PRNG's algorithm is not cryptogra...
Total des modifications: 1
Dernière mise à jour: 5 months ago