CVE-2024-23684

upokecenter CBOR Denial of Service

publishedCWE-407

Inefficient algorithmic complexity in DecodeFromBytes function in com.upokecenter.cbor Java implementation of Concise Binary Object Representation (CBOR) versions 4.0.0 to 4.5.1 allows an attacker to cause a denial of service by passing a maliciously crafted input. Depending on an application's use of this library, this may be a remote attacker.

Technical severity7.5 highCVSS 3.1 · ADP: CISA-ADP

Published2024-01-19Source updated 2026-11-08

Collected2026-11-083 attributed sources

Fixes and workarounds

Fix

com.upokecenter:cbor (Maven): OSV reports a fixed version 4.5.1. Check the advisory for supported release branches.

Source: OSV GHSA-fj2w-wfgv-mwq6

Affected products and versions

Affected products, source version ranges and reporting authorities
Product	Versions	Authority
`com.upokecenter:cbor` maven	≥ 4.0.0; < 4.5.1 (affected, maven) Other versions: unaffected	CNA: VulnCheck
com.upokecenter:cbor `com.upokecenter:cbor` Maven	4.0.0 (affected, Maven) 4.0.1 (affected, Maven) 4.1.0 (affected, Maven) 4.1.1 (affected, Maven) 4.1.3 (affected, Maven) 4.2.0 (affected, Maven) 4.3.0 (affected, Maven) 4.4.0 (affected, Maven) 4.4.1 (affected, Maven) 4.4.2 (affected, Maven) 4.4.3 (affected, Maven) 4.4.4 (affected, Maven) 4.5 (affected, Maven) Ecosystem version events: introduced 4.0.0; fixed 4.5.1 Source events (ECOSYSTEM) `[ { "introduced": "4.0.0" }, { "fixed": "4.5.1" } ]` Other versions: unaffected	OSV GHSA-fj2w-wfgv-mwq6

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

CVSS scores, vectors and reporting authorities
Version / score	Vector	Authority
3.1 / 7.5 high	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`	ADP: CISA-ADP

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References

https://github.com/peteroupc/CBOR-Java/security/advisories/GHSA-fj2w-wfgv-mwq6CNA: VulnCheck · vendor-advisory
https://github.com/advisories/GHSA-fj2w-wfgv-mwq6CNA: VulnCheck · vendor-advisory
https://vulncheck.com/advisories/vc-advisory-GHSA-fj2w-wfgv-mwq6CNA: VulnCheck · third-party-advisory
https://github.com/peteroupc/CBOR-Java/security/advisories/GHSA-fj2w-wfgv-mwq6ADP: CVE · vendor-advisory, x_transferred
https://github.com/advisories/GHSA-fj2w-wfgv-mwq6ADP: CVE · third-party-advisory, x_transferred
https://vulncheck.com/advisories/vc-advisory-GHSA-fj2w-wfgv-mwq6ADP: CVE · third-party-advisory, x_transferred
https://github.com/advisories/GHSA-fj2w-wfgv-mwq6OSV / GitHub Security Advisories · advisory
https://osv.dev/vulnerability/GHSA-fj2w-wfgv-mwq6OSV / GitHub Security Advisories · osv

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