Nexterm through 1.2.2-BETA contains a missing authorization vulnerability that allows authenticated users to
Affects NextermSource GCVE Database
Not known to be exploited · CVSS 5.3 Medium.
Data as of 31 Oct 2026, 19:08 UTC
Thin evidence
One scorer or none| CNA (VulnCheck) | CVSS 4.0 | 5.3 |
|---|---|---|
| CNA (VulnCheck) | CVSS 3.1 | 5.4 |
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 31 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 31 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
GitHubgnmyt/Nextermpkg:github/gnmyt/NextermOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Until a fix is available, restrict access to authenticated users and monitor session management endpoints for suspicious activity.
Description
Nexterm versions up to 1.2.2-BETA have a missing authorization vulnerability that allows authenticated users to control other users' remote sessions. Specifically, attackers with a session ID can hibernate, resume, or terminate SSH, RDP, VNC, or SFTP sessions belonging to others. This vulnerability affects the session lifecycle management endpoints and can disrupt active remote connections.
References
- nvd.nist.gov/vuln/detail/CVE-2026-120200 (opens in a new tab)
- github.com/gnmyt/Nexterm/issues/1944 (opens in a new tab)
- github.com/gnmyt/Nexterm/pull/1950 (opens in a new tab)
- github.com/gnmyt/Nexterm/commit/00fdb03eea35adb3dee8169469e897b3c8f30657 (opens in a new tab)
- github.com/gnmyt/Nexterm (opens in a new tab)
- github.com/gnmyt/Nexterm/blob/v1.2.2-BETA/server/routes/serverSession.js (opens in a new tab)
- vulncheck.com/advisories/nexterm-through-1.2.2-beta-missing-authorization-in-server-session-lifecycle-routes (opens in a new tab)