https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-08T19:49:00.385129+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/cve-2025-66456 CVE-2025-66456 — Elysia vulnerable to prototype pollution with multiple standalone schema validation 2026-10-08T19:49:00.400880+00:00

Affected: elysiajs elysia

Elysia is a Typescript framework for request validation, type inference, OpenAPI documentation and client-server communication. Versions 1.4.0 through 1.4.16 contain a prototype pollution vulnerability in `mergeDeep` after merging results of two standard schema validations with the same key. Due to the ordering of merging, there must be an any type that is set as a standalone guard, to allow for the `__proto__ prop` to be merged. When combined with GHSA-8vch-m3f4-q8jf this allows for a full RCE by an attacker. This issue is fixed in version 1.4.17. To workaround, remove the `__proto__ key` from body.