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Affected Component
Analysis
python3-cbor2
Patched
Name
CVE-2025-68131
Description
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.
CWEs
Published Date
Updated Date
Workaround
-
Analysis#
Vulnerability Ratings#
5.5
CVSSv4
7.5
CVSSv31
NaN
other
Others affected component#
Name
Project
Project Version
Version
Status
yocto
kirkstone
5.4.2
Patched
Resolved with patches#
python3-cbor2 (yocto:kirkstone)
#
Title
Author
Resolve
1
Merge commit from fork
Andreas Eriksen <andreer@vespa.ai>
CVE-2025-68131
python3-cbor2 (yocto:scarthgap)
#
Title
Author
Resolve
1
Merge commit from fork
Andreas Eriksen <andreer@vespa.ai>
CVE-2025-68131