Watch card · compiled automatically, not analysed
CVE-2026-71253
Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection') vulnerability in Apache Johnzon. ClassConverter loads & static-initializes…
AI summaryApache Johnzon 1.0.0 to before 2.2.0 loads and initializes a class named in untrusted JSON (unsafe reflection); upgrade to 2.2.0.
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Our status
Candidate — Not queued for research yet. Below is public data only.
Key numbers
- CVSS
- 9.8 v3.1
- CISA KEV
- Not listed
- EPSS
- 0.65%
- Momentum
- —
Timeline
- 2026-10-19DisclosedNVD
How much time similar vulnerabilities gave
This item is not mapped to a category yet, so here are the overall numbers: of 390 vulnerabilities disclosed since 2025 and added to KEV, the median time from disclosure to KEV was 5 days; 54% were added within 7 days.
This one: not in KEV so far (that does not mean it is not exploited).
Counts only vulnerabilities CISA has confirmed as exploited; disclosure is the NVD publication date, which can differ from the vendor advisory.
Primary sources
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