CVE-2026-120200 json
Nexterm through 1.2.2-BETA Missing Authorization in Server Session Lifecycle Routes
published 2026-10-31 8 d ago modified 2026-11-02 6 d ago also EUVD-2026-114721
- cvss
- 5.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 13%
- public exploits
- 0
- none known
Summary
Nexterm through 1.2.2-BETA contains a missing authorization vulnerability that allows authenticated users to hibernate, resume, or terminate other users' remote sessions via session lifecycle routes. Attackers who obtain a session ID can call the hibernate, resume, or DELETE connection endpoints to disrupt live SSH, RDP, VNC, or SFTP sessions.
Patch / fix
- github.com/gnmyt/Nexterm@00fdb03 commit
- github.com/gnmyt/Nexterm#1950 pull request
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 6 d ago
Exploit prediction
0.23% chance of exploitation in the next 30 days, higher than 13% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 5.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N |
| CNA | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L |
| CNA | 4.0 | 5.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- gnmyt Nexterm
Classification
- Weakness
-
- CWE-639 Authorization Bypass Through User-Controlled Key
References
-
github.com
/gnmyt/Nexterm/pull/1950
issue-tracking, patch
-
github.com
/gnmyt/Nexterm/commit/00fdb03eea35adb3dee8169469e897b3c8f30657
patch
-
github.com
/gnmyt/Nexterm/issues/1944
issue-tracking
-
github.com
/gnmyt/Nexterm/blob/v1.2.2-BETA/server/routes/serverSession.js#L87
technical-description
-
github.com
/gnmyt/Nexterm
product
-
vulncheck.com
/advisories/nexterm-through-1.2.2-beta-missing-authorization-in-server-session-lifecycle-routes
third-party-advisory
Sources
- CVE List CVE-2026-120200
- NVD CVE-2026-120200
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.