Threats Tagged 'cve-2026-48516'
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Threats Tagged 'cve-2026-48516'
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GHSA-q2h6-ghwm-5qm8: MessagePack-CSharp: InterfaceLookupFormatter bypasses collision-resistant comparer settingsCVE-2026-48516 0 MessagePack-CSharp's InterfaceLookupFormatter<TKey,TElement> constructs an internal dictionary using the default equality comparer instead of the security-aware comparer when deserializing ILookup<TKey,TElement>. This omission allows an attacker to craft payloads with colliding keys that degrade dictionary insertion performance, causing a CPU denial of service even when the application opts into untrusted-data security settings. The vulnerability affects versions of MessagePack prior to 2.5.301 and versions 3.0 up to but not including 3.1.7. Join the discussion | GCVE Database | 06/25/2026, 21:29:39 UTC Added: 06/26/2026, 22:06:43 UTC |
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