CVE-2026-82909Public exploitNetwork attack vectorHinoki check available

Token metadata disclosure via incomplete revocation checks

Published Aug 31, 2026 · Updated Sep 2, 2026

Insufficient session expiration in QuantumNous New API 1.0.0-rc.0 through 1.0.0-rc.15 allows remote authenticated users to read token metadata. TokenAuthReadOnly verifies that a token exists but omits its disabled-status check before serving GET /api/usage/token/. A previously valid disabled token is required, and exposure is limited to read-only usage, quota, expiration, and model-limit metadata.

CVSS severityUnavailable
Unscored
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Insufficient session expiration in QuantumNous New API 1.0.0-rc.0 through 1.0.0-rc.15 allows remote authenticated users to read token metadata. TokenAuthReadOnly verifies that a token exists but omits its disabled-status check before serving GET /api/usage/token/. A previously valid disabled token is required, and exposure is limited to read-only usage, quota, expiration, and model-limit metadata.

The record

CVE
CVE-2026-82909
Published
Aug 31, 2026
Updated
Sep 2, 2026
Vendor
QuantumNous
Product
New API
Classifications
CWE-613, T1550.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 31, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 2, 2026Record 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=1.0.0-rc.0
  2. Affected versionversion=1.0.0-rc.1
  3. Affected versionversion=1.0.0-rc.10
  4. Affected versionversion=1.0.0-rc.11
  5. Affected versionversion=1.0.0-rc.12
  6. Affected versionversion=1.0.0-rc.13
  7. Affected versionversion=1.0.0-rc.14
  8. Affected versionversion=1.0.0-rc.15
  9. Affected versionversion=1.0.0-rc.2
  10. Affected versionversion=1.0.0-rc.3
  11. Affected versionversion=1.0.0-rc.4
  12. Affected versionversion=1.0.0-rc.5
  13. Affected versionversion=1.0.0-rc.6
  14. Affected versionversion=1.0.0-rc.7
  15. Affected versionversion=1.0.0-rc.8
  16. Affected versionversion=1.0.0-rc.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

QuantumNous · New APIversion=1.0.0-rc.0; version=1.0.0-rc.1; version=1.0.0-rc.10; version=1.0.0-rc.11; version=1.0.0-rc.12; version=1.0.0-rc.13; version=1.0.0-rc.14; version=1.0.0-rc.15; version=1.0.0-rc.2; version=1.0.0-rc.3; version=1.0.0-rc.4; version=1.0.0-rc.5; version=1.0.0-rc.6; version=1.0.0-rc.7; version=1.0.0-rc.8; version=1.0.0-rc.9

Published CVSS scores

4.0VulDBAV:N/AC:L/Au:S/C:P/I:N/A:N/E:POC/RL:OF/RC:C
4.3VulDBCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
4.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
5.3VulDBCVSS: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

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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-613Insufficient Session Expiration
T1550.001Use Alternate Authentication Material: Application Access Token

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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