CVE-2026-5080

Published: Apr 30, 2026 Last Modified: Apr 30, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 5,9
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Attack Vector: network
Attack Complexity: high
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high

Description

AI Translation Available

Dancer::Session::Abstract versions through 1.3522 for Perl generates session ids insecurely.

The session id is generated from summing the character codepoints of the absolute pathname with the process id, the epoch time and calls to the built-in rand() function to return a number between 0 and 999-billion, and concatenating that result three times.

The path name might be known or guessed by an attacker, especially for applications known to be written using Dancer with standard installation locations.

The epoch time can be guessed by an attacker, and may be leaked in the HTTP header.

The process id comes from a small set of numbers, and workers may have sequential process ids.

The built-in rand() function is seeded with 32-bits and is considered unsuitable for security applications.

Predictable session ids could allow an attacker to gain access to systems.

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
0,0004
Percentile
0,1th
Updated

EPSS Score Trend (Last 2 Days)

338

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

Draft
Common Consequences
Security Scopes Affected:
Access Control
Potential Impacts:
Bypass Protection Mechanism
Applicable Platforms
All platforms may be affected
View CWE Details
340

Generation of Predictable Numbers or Identifiers

Incomplete
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/BIGPRESH/Dancer-1.3522/source/lib/Dancer/Session/A…
https://security.metacpan.org/patches/D/Dancer/1.3522/CVE-2026-5080-r1.patch
http://www.openwall.com/lists/oss-security/2026/04/30/19