CVE-2026-90771: falha de média gravidade em hapijs joi
joi before 17.13.8 and 18.2.9 Prototype Pollution via messages
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13Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 6.3epss 0.4%
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 Object.prototype methods.
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
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Referências
https://github.com/hapijs/joihttps://github.com/hapijs/joi/blob/v18.2.8/lib/messages.jshttps://github.com/hapijs/joi/commit/5b8333c9177e08b4ef4ed02903c2d657084e7afbhttps://github.com/hapijs/joi/issues/3150https://www.vulncheck.com/advisories/joi-before-17.13.8-and-18.2.9-prototype-pollution-via-messages