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Advisory record · GHSA-f6vf-pq8c-69m4

Improper Check for Unusual or Exceptional Conditions in Connect2id Nimbus JOSE+JWT

CVSS 9.8 CriticalCriticalEPSS 0.11 · 95th percentile

Critical, because:

  • CVSS score 9.8: 9.0 or more.
  • CVSS score 9.8 (7.0 or more) and EPSS 0.11 (0.1 or more): a high score and a real chance of exploitation in the next 30 days.

How we decide what’s critical

Published by the GitHub Advisory Database at 16 Oct 2019, 18:31 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
com.nimbusds:nimbus-jose-jwtMaven<7.97.9
Identifiers
GHSA-f6vf-pq8c-69m4 · CVE-2019-17195
Weakness (CWE)
CWE-754 · CWE-755
Tags
Published
16 Oct 2019
Updated
14 Mar 2024

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Nimbus JOSE+JWT (com.nimbusds:nimbus-jose-jwt) versions before 7.9 can throw uncaught exceptions while parsing a JWT. An attacker who can submit a crafted JWT to an affected application could crash it, and the source says this could also lead to information disclosure or an authentication bypass. Upgrade to version 7.9 or later. The source gives few details on the exact conditions.

Written 8 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
9.8 Critical 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H GitHub Advisory Database
  • CISA KEV Not listed.
  • EPSS 0.11, the 95th percentile, on 8 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 15:13 UTC First seen by agentprime
  2. 31 Oct 2026, 15:13 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.