CVE-2025-68131

HIGH

7.5

Descricao

cbor2 provides encoding and decoding for the Concise Binary Object Representation (CBOR) serialization format. Starting in version 3.0.0 and prior to version 5.8.0, whhen a CBORDecoder instance is reused across multiple decode operations, values marked with the shareable tag (28) persist in memory and can be accessed by subsequent CBOR messages using the sharedref tag (29). This allows an attacker-controlled message to read data from previously decoded messages if the decoder is reused across trust boundaries. Version 5.8.0 patches the issue.

Detalhes CVE

Pontuacao CVSS v3.17.5

SeveridadeHIGH

Vetor CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosNONE

Interacao do usuarioNONE

Publicado12/31/2025

Ultima modificacao1/2/2026

Fontenvd

Avistamentos honeypot0

Produtos afetados

agronholm:cbor2

Fraquezas (CWE)

CWE-212

Referencias

https://github.com/agronholm/cbor2/pull/268(security-advisories@github.com)

https://github.com/agronholm/cbor2/security/advisories/GHSA-wcj4-jw5j-44wh(security-advisories@github.com)

https://github.com/agronholm/cbor2/security/advisories/GHSA-wcj4-jw5j-44wh(134c704f-9b21-4f2e-91b3-4a467353bcc0)

Correlacoes IOC

Sem correlacoes registradas

This product uses data from the NVD API but is not endorsed or certified by the NVD.