CVE-2026-123561: falha de média gravidade em sveltejs devalue
Sveltejs devalue before 5.9.3 __proto__ Rejection Bypass via Property-Key Coercion
Publicada em
Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.
13Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 6.3epss 0.2%
devalue before 5.9.3 allows malformed null-prototype object keys to bypass parse's __proto__ rejection through property-key coercion, an incomplete fix for GHSA-mwv9-gp5h-frr4. Attackers can supply crafted payloads that yield objects with a __proto__ own property, which alone does not cause prototype pollution.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Produtos afetados
sveltejs · devalueCVEs relacionadas — sveltejs devalue
No mesmo produto, das mais perigosas para as menos.
CVE-2026-92708HIGHdevalue: Cross-request process memory disclosure in devalue when `stringify` / `uneval` serialize Node BuffersEPSS 0.7%CVE-2026-22775HIGHdevalue vulnerable to denial of service due to memory/CPU exhaustion in devalue.parseEPSS 0.6%CVE-2026-22774HIGHdevalue vulnerable to denial of service due to memory exhaustion in devalue.parseEPSS 0.6%CVE-2026-81176MEDIUMSvelte devalue: DoS via malformed inputEPSS 0.5%CVE-2026-30226MEDIUMdevalue has prototype pollution in devalue.parse and devalue.unflattenEPSS 0.5%CVE-2026-42570HIGHSvelte devalue: DoS via sparse array deserializationEPSS 0.4%