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TI-2026-04437 Aliases CVE-2026-5082GHSA-gr8m-rq4x-q7c8

Amon2::Plugin::Web::CSRFDefender versions from 7.00 through 7.03 for Perl generate an…

Priority LOW 30CWE-338Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · Low
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00421 36th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
TOKUHIROMAmon2::Plugin::Web::CSRFDefender7.00 – 7.03—No fix listedCNA
  • Amon2::Plugin::Web::CSRFDefender VendorTOKUHIROM Affected 7.00 – 7.03 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:tokuhirom:amon2\:\:plugin\:\:web\:\:csrfdefender:*:*:*:*:*:perl:*:* plugin\VulnerableTOKUHIROM
  • cpe:2.3:a:tokuhirom:amon2\:\:plugin\:\:web\:\:csrfdefender:*:*:*:*:*:perl:*:* Versions plugin\ Vulnerable ·TOKUHIROM

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-5082
  2. 2026-10-03 Alias added: GHSA-gr8m-rq4x-q7c8

References

Advisory 1

Other 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences