CVE-2025-68131

HIGH

7.5

Beschreibung

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.

CVE Details

CVSS v3.1 Bewertung7.5

SchweregradHIGH

CVSS VektorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

AngriffsvektorNETWORK

KomplexitatLOW

Erforderliche PrivilegienNONE

BenutzerinteraktionNONE

Veroffentlicht12/31/2025

Zuletzt geandert1/2/2026

Quellenvd

Honeypot-Sichtungen0

Betroffene Produkte

agronholm:cbor2

Schwachen (CWE)

CWE-212

Referenzen

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)

IOC Korrelationen

Keine Korrelationen erfasst

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