5.3

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

Deferred
Published 31-08-2026Last modified 02-09-2026

Vulnerability summary

CVE-2026-82909 is a medium (CVSS 5.3) vulnerability in quantumnous new-api. EPSS estimates a 0.39% chance of exploitation in the next 30 days, higher than 33.7% of scored vulnerabilities. 1 public exploit is recorded.

Priority
Routine

Not severe (CVSS 5.3, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.3/10
010
Medium · v4.0 (CVE.org)
EPSS score
0.39%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1github

Timeline

  1. 31-08-2026
    PublishedVulnerability first disclosed.
  2. 02-09-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

7 scores · 2 sources · 4 versions

EPSS trend

Probability

0.39%

Chance of exploitation in the next 30 days

Percentile

34%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.39% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

1 found
  • githubUnverified

    Poc

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Quantumnous1 product
  • new-api1.0.0-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

1 vendor · 1 product

References

8 links