joi: joi: Prototype Pollution via custom messages

A flaw was found in joi. This vulnerability, known as prototype pollution, exists in the messages compilation function. A remote attacker can exploit this by supplying specially crafted proto keys in custom messages. This allows the attacker to manipulate object properties, which could lead to...

CVE-2026-90771

A flaw was found in joi. This vulnerability, known as prototype pollution, exists in the messages compilation function. A remote attacker can exploit this by supplying specially crafted proto keys in custom messages. This allows the attacker to manipulate object properties, which could lead to...

Linux Distros Unpatched Vulnerability : CVE-2026-90771

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - joi before versions 17.13.8 and 18.2.9 contains a prototype pollution vulnerability in the messages compilation function that accepts proto as an error code...

CVE-2026-90771

joi before versions 17.13.8 and 18.2.9 contains a prototype pollution vulnerability in the messages compilation function that accepts proto as an error code. Attackers can supply proto keys in custom messages to replace the returned object's prototype, breaking downstream code relying on...

CVE-2026-90771

joi (the Hapi.js validation library) before versions 17.13.8 and 18.2.9 is affected by a prototype pollution vulnerability in the messages compilation function . The root cause is that the function accepts __proto__ as a valid error code, allowing an attacker to supply __proto__ keys in custom er...

EUVD-2026-76992

joi before versions 17.13.8 and 18.2.9 contains a prototype pollution vulnerability in the messages compilation function that accepts proto as an error code. Attackers can supply proto keys in custom messages to replace the returned object's prototype, breaking downstream code relying on...

PT-2026-90838

joi before versions 17.13.8 and 18.2.9 contains a prototype pollution vulnerability in the messages compilation function that accepts proto as an error code. Attackers can supply proto keys in custom messages to replace the returned object's prototype, breaking downstream code relying on...

CVE-2026-90771: Improperly Controlled Modification of Object Prototype Attributes

joi before versions 17.13.8 and 18.2.9 contains a prototype pollution vulnerability in the messages compilation function that accepts proto as an error code. Attackers can supply proto keys in custom messages to replace the returned object's prototype, breaking downstream code relying on...