🛡️ CVE-2026-5082
🟡 CVSS 5.3 — Medium ✅ No Known Exploit CWE-338 NVD
5.3
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Amon2::Plugin::Web::CSRFDefender versions from 7.00 through 7.03 for Perl generate an insecure session id. The generate_session_id function will attempt to read bytes from the /dev/urandom device, but if that is unavailable then it generates bytes using SHA-1 hash seeded with the built-in rand() function, the PID, and the high resolution epoch time. 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. Amon2::Plugin::Web::CSRFDefender versions before 7.00 were part of Amon2, which was vulnerable to insecure session ids due to CVE-2025-15604. Note that the author has deprecated this module.

Details

Severity MEDIUM
CVSS Score 5.3
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE CWE-338
Public Exploit ✅ No
Source NVD
Published 2026-04-08
Updated 2026-06-02
Modified 2026-04-23
Fix URL N/A

Affected Packages

Software From version Fixed in
amon2\ 7.00 7.03

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