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TI-2026-63825 Aliases CVE-2026-96651GHSA-x3g5-jwm4-93w7

Plex Media Server path traversal

Priority LOW 33CWE-22Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-22 and the CVSS impact.

Summary

Plex Media Server before 1.43.3.10861 builds a file path from the url parameter without checking it for ../ sequences, allowing path traversal via '/system/agents/media/get'. A remote attacker with a valid session token could read any file that the target user can access. This access includes the PlexOnlineToken, which grants control of the Plex account and server. A LAN-adjacent attacker with a client-supplied X-Forwarded-For header could exploit the same issue.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00827 57th percentileScored 2026-11-07
Fix Fixed Media Server (Plex): 1.43.3.10861

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
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
PlexMedia Serverbefore 1.43.3.108611.43.3.10861Patch availableCNA
  • Media Server VendorPlex Affected before 1.43.3.10861 Fixed in 1.43.3.10861 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:plex:media_server:*:*:*:*:*:*:*:*before 1.43.0.10861VulnerablePlex
  • cpe:2.3:a:plex:media_server:*:*:*:*:*:*:*:* Versions before 1.43.0.10861 Vulnerable ·Plex

Remediation

  • Fix · CNA Media Server (Plex) Fixed in 1.43.3.10861

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Plex Media Server 1.43.3.10861

    5 records Highest priority Priority CRITICAL 2 CRITICAL, 2 HIGH, 1 LOW

    Other records, highest priority first

    • TI-2026-63829 Arbitrary file write in Plex Media Server enables code executionPriority CRITICAL 96
    • TI-2026-63827 Plex Media Server URL injection lets attackers call other pluginsPriority CRITICAL 88
    • TI-2026-63828 Server-side request forgery in Plex Media ServerPriority HIGH 81
    Show all 5 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-96651
  2. 2026-10-03 Alias added: GHSA-x3g5-jwm4-93w7
  3. 2026-10-25 EPSS moved to the 50th–90th percentile

References

Advisory 3

Other 1

  • TI-2026-63829 Arbitrary file write in Plex Media Server enables code execution KEVCVSS 4.0HIGH 8.6
  • TI-2020-04669 Deserialization of untrusted data in Plex Media Server KEVCVSS 3.1HIGH 7.2
  • TI-2026-63827 Plex Media Server URL injection lets attackers call other plugins KEVCVSS 4.0MEDIUM 6.9
  • TI-2026-63828 Server-side request forgery in Plex Media Server KEVCVSS 4.0MEDIUM 5.3
  • TI-2026-63826 Server-side request forgery in Plex Media Server KEVCVSS 4.0MEDIUM 5.3
  • TI-2025-42857 Incorrect authorization in Plex Media Server CVSS 3.1HIGH 8.5
See all 18 →

Sources

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