CVE-2019-17195
A public proof of concept exists; no exploitation attested.
- Published2019-10-15
- WeaknessCWE-755
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
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.
Timeline
dates in UTC- 2019-10-1514:15CVE publishedNVD
- 2026-10-2319:23First public proof of conceptPoC-in-GitHub
- 2026-10-2319:23EPSS crossed 10 %FIRST EPSS
Observed activity
isMalicious corpus · updated 2026-10-23 21:37 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2019-17195?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2019-17195?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 8.58 | = 8.58 | no fix published | NVD |
| 8.59 | = 8.59 | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 18.8 | ≥ 18.8.0, ≤ 18.8.11 | no fix published | NVD |
| 19.12 | = 19.12.0 | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 12.2 | = 12.2.1.3.0 | no fix published | NVD |
| 12.2 | = 12.2.1.4.0 | no fix published | NVD |
12 more products in the sources.
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Fix
Advisories and patches
- bitbucket.orgRelease Notes
- connect2id.comRelease Notes · Vendor Advisory
- www.oracle.comPatch
- www.oracle.comPatch
- www.oracle.comPatch
- www.oracle.comPatch
Detection
read 2026-10-23 19:23 UTC- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
Sources
- NVDCVSS 3.19.8read 2026-10-23
- NVDCVSS 2.06.8read 2026-10-23
- NVDweakness (CWE)CWE-755read 2026-10-23
- FIRST EPSSEPSS score11.1 %read 2026-10-23
- PoC-in-GitHubproof of concept1read 2026-10-23
- OSVaffected packages—
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Published
- 2019-10-15
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2019-17195?
Is CVE-2019-17195 actively exploited?
What is the CVSS score for CVE-2019-17195?
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Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.