CVE-2025-59951Public exploitNetwork attack vector

Unauthenticated SSH credential disclosure via proxy IP trust

Published Oct 1, 2025 · Updated Oct 6, 2025

Authentication bypass in Termix before 1.6.0 allows remote attackers to read stored SSH host addresses, usernames, and passwords. The isLocalhost check trusts req.ip behind Nginx, reads the loopback proxy address as the client address, and authorizes /ssh/db/host/internal. The unauthenticated disclosure is reachable when the official Docker image, its Dockerfile, or another reverse proxy presents the backend with the proxy's loopback address.

CVSS severity9.2
Critical
EPSS probability4.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Termix before 1.6.0 allows remote attackers to read stored SSH host addresses, usernames, and passwords. The isLocalhost check trusts req.ip behind Nginx, reads the loopback proxy address as the client address, and authorizes /ssh/db/host/internal. The unauthenticated disclosure is reachable when the official Docker image, its Dockerfile, or another reverse proxy presents the backend with the proxy's loopback address.

The record

CVE
CVE-2025-59951
Published
Oct 1, 2025
Updated
Oct 6, 2025
Vendor
Termix-SSH
Product
Termix
Classifications
CWE-284, CWE-348, CWE-345, T1555, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 1, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 6, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.6.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Termix-SSH · Termixversion=< 1.6.0

Published CVSS scores

9.2GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N
9.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-284Improper Access Control
CWE-348Use of Less Trusted Source
CWE-345Insufficient Verification of Data Authenticity
T1555Credentials from Password Stores
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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