Back to Database
Status published
High
CVE-2024-26134
CBOR2 decoder has potential buffer overflow
Vulnerability Description
cbor2 provides encoding and decoding for the Concise Binary Object Representation (CBOR) (RFC 8949) serialization format. Starting in version 5.5.1 and prior to version 5.6.2, an attacker can crash a service using cbor2 to parse a CBOR binary by sending a long enough object. Version 5.6.2 contains a patch for this issue.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2024-26134
Credits & Attribution
No credits recorded in the NVD database.
References
- https://github.com/agronholm/cbor2/security/advisories/GHSA-375g-39jq-vq7m
- https://github.com/agronholm/cbor2/pull/204
- https://github.com/agronholm/cbor2/commit/387755eacf0be35591a478d3c67fe10618a6d542
- https://github.com/agronholm/cbor2/commit/4de6991ba29bf2290d7b9d83525eda7d021873df
- https://github.com/agronholm/cbor2/releases/tag/5.6.2
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GX524ZG2XJWFV37UQKQ4LWIH4UICSGEQ/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BT42VXZMMMCSSHMA65KKPOZCXJEYHNR5/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PWC3VU6YV6EXKCSX5GTKWLBZIDIJNQJY/
Affected Vendor
agronholm
View all reports →Affected Software
cbor2
Vulnerable Versions:
>= 5.5.1, < 5.6.2
Timeline
Official Publish:
February 19th, 2024
Last Modified:
February 13th, 2025
Added to House:
July 22nd, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H