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HIGH

CVE-2026-91776

CVSS v3

7.5

HIGH

Score EPSS

0.4 %

probabilité d’exploitation au 2026-09-28

CISA KEV

Non

exploitation connue

Exploitation

—

statut SSVC

Description

TypeDeserializerBase._findDeserializer() in FasterXML jackson-databind caches the resolved deserializer under the raw, attacker-supplied type ID. When name-based polymorphism is configured with a fallback, for example @JsonTypeInfo(use = Id.NAME, defaultImpl = ...), every distinct unrecognized type ID resolves to the same fallback deserializer but is retained as its own key in the _deserializers map. That map has no configurable bound and lives for the lifetime of the type deserializer, so an at

Détails techniques

Publiée le
2026-09-23
Dernière modification
2026-09-24

Questions fréquentes

Qu’est-ce que CVE-2026-91776 ?

TypeDeserializerBase._findDeserializer() in FasterXML jackson-databind caches the resolved deserializer under the raw, attacker-supplied type ID. When name-based polymorphism is configured with a fallback, for example @JsonTypeInfo(use = Id.NAME, defaultImpl = ...), every distinct unrecognized type ID resolves to the same fallback deserializer but is retained as its own key in the _deserializers map. That map has no configurable bound and lives for the lifetime of the type deserializer, so an at

CVE-2026-91776 est-elle activement exploitée ?

Aucune exploitation active de CVE-2026-91776 n’est confirmée. Son score EPSS était de 0.4 % au 2026-09-28, soit la probabilité estimée d’exploitation dans les 30 prochains jours.

Quel est le score CVSS de CVE-2026-91776 ?

CVE-2026-91776 a un score de base CVSS v3 de 7.5 (gravité HIGH).

CVE-2026-91776 touche-t-elle votre environnement ?

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