CVE-2019-17195 — Connect2id Nimbus JOSE+JWT before v7

Connect2id Nimbus JOSE+JWT before v7.9 can throw various uncaught exceptions while parsing a JWT, which could result in an application crash (potential information disclosure) or a potential authentication bypass.

01What is this vulnerability?

Connect2id Nimbus JOSE+JWT before v7.9 can throw various uncaught exceptions while parsing a JWT, which could result in an application crash (potential information disclosure) or a potential authentication bypass.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2019-10-15T13:42:34.000Z
• Last modified: 2024-08-05T01:33:17.304Z

09References

• lists.apache.org — https://lists.apache.org/thread.html/e10d43984f39327e443e875adcd4a5049193a7c010e…
• lists.apache.org — https://lists.apache.org/thread.html/8768553cda5838f59ee3865cac546e824fa740e82d9…
• www.oracle.com — https://www.oracle.com/security-alerts/cpuapr2020.html
• www.oracle.com — https://www.oracle.com/security-alerts/cpujan2021.html
• bitbucket.org — https://bitbucket.org/connect2id/nimbus-jose-jwt/src/master/SECURITY-CHANGELOG.t…
• connect2id.com — https://connect2id.com/blog/nimbus-jose-jwt-7-9
• lists.apache.org — https://lists.apache.org/thread.html/rcac26c2d4df22341fa6ebbfe93ba1eff77d2dcd3f6…
• lists.apache.org — https://lists.apache.org/thread.html/r35f6301a3e6a56259224786dd9c2a935ba27ff6b49…
• lists.apache.org — https://lists.apache.org/thread.html/r33dc233634aedb04fa77db3eb79ea12d15ca4da89f…
• lists.apache.org — https://lists.apache.org/thread.html/r2667286c8ceffaf893b16829b9612d8f7c4ee6b303…
• lists.apache.org — https://lists.apache.org/thread.html/r5e08837e695efd36be73510ce58ec05785dbcea077…
• www.oracle.com — https://www.oracle.com/security-alerts/cpuApr2021.html
• www.oracle.com — https://www.oracle.com//security-alerts/cpujul2021.html
• www.oracle.com — https://www.oracle.com/security-alerts/cpuoct2021.html
• www.oracle.com — https://www.oracle.com/security-alerts/cpujan2022.html
• www.oracle.com — https://www.oracle.com/security-alerts/cpuapr2022.html