CVE-2026-61534
1 advisory.
npm/yayson CVE-2026-61534: critical 9.1, EPSS 0.84%
yayson: Prototype pollution in Store/LegacyStore deserialization
Action: Upgrade yayson to 4.3.0 or later.
npm i yayson@4.3.0Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 4.3.0 | - |
Fixed versions
| 4.3.0 |
Sources
- osv: GHSA-325j-mg25-8q58
- https://github.com/confetti/yayson/security/advisories/GHSA-325j-mg25-8q58
- https://github.com/confetti/yayson
CVE-2026-61534 · published · modified · JSON