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TI-2024-27036 Aliases CVE-2024-40624GHSA-fg86-4c2r-7wxw

Deserialization of untrusted data in torrentpier/torrentpier

Priority HIGH 82CWE-502Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-502.

Summary

TorrentPier is an open source BitTorrent Public/Private tracker engine, written in php. In `torrentpier/library/includes/functions.php`, `get_tracks()` uses the unsafe native PHP serialization format to deserialize user-controlled cookies. One can use phpggc and the chain Guzzle/FW1 to write PHP code to an arbitrary file, and execute commands on the system. For instance, the cookie bb_t will be deserialized when browsing to viewforum.php. This issue has been addressed in commit `ed37e6e52` which is expected to be included in release version 2.4.4. Users are advised to upgrade as soon as the new release is available. There are no known workarounds for this vulnerability.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00995 62nd percentileScored 2026-11-07
Fix Fixed torrentpier (torrentpier): 2.4.4torrentpier/torrentpier (Packagist): 2.4.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
torrentpiertorrentpierbefore 2.4.42.4.4Patch availableCNA
—torrentpier/torrentpier (Packagist)before 2.4.42.4.4Patch availableGHSA-fg86-4c2r-7wxw
  • torrentpier Vendortorrentpier Affected before 2.4.4 Fixed in 2.4.4 Patch available CNA
  • torrentpier/torrentpier (Packagist) Vendor— Affected before 2.4.4 Fixed in 2.4.4 Patch available GHSA-fg86-4c2r-7wxw

CPE names CISA-ADP · 1

CPEVersionsRoleVendor
cpe:2.3:a:torrentpier:torrentpier:*:*:*:*:*:*:*:*——torrentpier
  • cpe:2.3:a:torrentpier:torrentpier:*:*:*:*:*:*:*:* Versions — — ·torrentpier

Remediation

  • Fix · CNA torrentpier (torrentpier) Fixed in 2.4.4
  • Fix · GHSA-fg86-4c2r-7wxw torrentpier/torrentpier (Packagist) Fixed in 2.4.4 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-40624
  2. 2026-10-03 Alias added: GHSA-fg86-4c2r-7wxw

References

Advisory 1

Other 4

  • TI-2024-01534 Torrentpier 2.4.1 - RCE CVSS 3.1CRITICAL 10.0
  • TI-2025-39909 TorrentPier is Vulnerable to Authenticated SQL Injection through Moderator Control Panel's topic_id parameter CVSS 3.1HIGH 8.8

Sources

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