CVE-2026-3256

Published: Mar 28, 2026 Last Modified: Mar 28, 2026
ExploitDB:
Other exploit source:
Google Dorks:

Description

AI Translation Available

HTTP::Session versions through 0.53 for Perl defaults to using insecurely generated session ids.

HTTP::Session defaults to using HTTP::Session::ID::SHA1 to generate session ids using a SHA-1 hash seeded with the built-in rand function, the high resolution epoch time, and the PID. The PID will come from a small set of numbers, and the epoch time may be guessed, if it is not leaked from the HTTP Date header. The built-in rand function is unsuitable for cryptographic usage.

The distribution includes HTTP::session::ID::MD5 which contains a similar flaw, but uses the MD5 hash instead.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0001
Percentile
0,0th
Updated

Single Data Point

Only one EPSS measurement is available for this CVE. Trend analysis requires multiple data points over time.

338

Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Access Control
Potential Impacts:
Bypass Protection Mechanism
Applicable Platforms
All platforms may be affected
Likelihood of Exploit: Medium
View CWE Details
340

Generation of Predictable Numbers or Identifiers

Incomplete
Abstraction: Class Structure: Simple
Common Consequences
Security Scopes Affected:
Other
Potential Impacts:
Varies By Context
Applicable Platforms
All platforms may be affected
View CWE Details
https://metacpan.org/release/KTAT/http-session-0.53/source/…
https://metacpan.org/release/KTAT/http-session-0.53/source/lib/HTTP/Session/ID/…
https://metacpan.org/release/KTAT/http-session-0.53/source/…
https://metacpan.org/release/KTAT/http-session-0.53/source/lib/HTTP/Session/ID/…
https://security.metacpan.org/docs/guides/random-data-for-s…
https://security.metacpan.org/docs/guides/random-data-for-security.html
http://www.openwall.com/lists/oss-security/2026/03/28/5
http://www.openwall.com/lists/oss-security/2026/03/28/5