CVE-2026-96656: Plex Media Server External Control of File Name or Path Vulnerability
In CISA KEV since 2026-10-20. High advisory severity.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
CVE-2026-96656 key facts
- CISA KEV
- Listed on · federal remediation due
- Highest advisory severity
- High
- Vendor advisories
- 1 from Synology
- VulniPulse record
- Published
Is CVE-2026-96656 exploited?
Yes. CISA lists CVE-2026-96656 in its Known Exploited Vulnerabilities catalog (added ), which means CISA has evidence of exploitation in the wild.
How do I fix CVE-2026-96656?
CISA required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
This CVE is tracked through a multi-CVE bulletin, so its fixed releases may differ from the bulletin-wide values below. Check the vendor source.
Get an email when Synology publishes the next one.
See Synology's last 90 days of advisories first. Then choose one product with live alerts free for life, or a free month of real-time alerts on everything with the severity, the fixed version and the vendor's link (card needed, then US$15/month; we email you before the first charge).
Vendor advisory comparison
Synology
1 advisory- Advisory severityHigh7.2
High [CVE-2026-96652 +3] Synology-SA-26:17 Plex Media Server (Plex2Shell)
Synology-SA-26:17Source published
This bulletin covers 4 CVEs. The products, versions, score and guidance below describe the bulletin; check its source for applicability to this specific CVE.
Synology has released a security update for the Plex Media Server package in DSM to address the Plex2Shell vulnerabilities. Affected products named by the advisory: Plex Media Server for DSM 7.4; Plex Media Server for DSM 7.3; Plex Media Server for DSM 7.2.2; Plex Media Server for DSM 7.2.1.
- Affected products in this advisory
- Plex Media Server for DSM 7.4
- Plex Media Server for DSM 7.3
- Plex Media Server for DSM 7.2.2
- Plex Media Server for DSM 7.2.1
- Source-reported affected versions
- Plex Media Server for DSM 7.4 before 1.43.5.11079-720011079
- Plex Media Server for DSM 7.3 before 1.43.5.11079-720011079
- Plex Media Server for DSM 7.2.2 before 1.43.5.11079-700011079
- Plex Media Server for DSM 7.2.1 before 1.43.5.11079-700011079
- Source-reported fixed versions
- 1.43.5.11079-720011079
- 1.43.5.11079-700011079
- Mitigation guidance
- Upgrade the affected Synology product to a fixed release: 1.43.5.11079-720011079, 1.43.5.11079-700011079.
More Synology advisories
- CVE-2026-76954Nov 10, 2026Synology-SA-26:19 DSM
- CVE-2026-124993Nov 10, 2026Synology-SA-26:18 DSM
- CVE-2026-111497Oct 29, 2026Synology-SA-26:15 Node2Shell
- CVE-2026-109618Oct 22, 2026Synology-SA-26:14 PHP2Shell
- CVE-2026-4036Sep 18, 2026DSM 7.3 HTTP response splitting
- CVE-2026-13623Sep 18, 2026DSM 7.4 cross-site scripting (XSS)
Follow CVE-2026-96656 in the free weekly digest
Every Monday: whether it was added to CISA KEV, reported exploited, got a fix or changed severity, plus the week's critical and high advisories.
Browse the latest tracked CVEs or the CVEs listed in CISA KEV.
iPhone and Android apps · New on the App Store
Monitor future Synology CVEs from your phone.
Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 34 official vendor sources and 160+ reviewed platform categories.
