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Vulnerability record · CVE-2024-21907 · published 3 January 2024

CVE-2024-21907: Newtonsoft json.net vulnerability

Newtonsoft · Json.Net

Newtonsoft.Json before version 13.0.1 is affected by a mishandling of exceptional conditions vulnerability. Crafted data that is passed to the JsonConvert.DeserializeObject method may trigger a StackOverflow exception resulting in denial of service. Depending on the usage of the library, an unauthenticated and remote attacker may be able to cause the denial of service condition.

7.5 CVSS 3.1 High EPSS 33% · top 1.7% CWE-755 · CWE-755
7.5CVSS 3.1 base score
33%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
16References, 8 tagged exploit
14 Jul 2026Last modified by NVD

Description

Newtonsoft.Json before version 13.0.1 is affected by a mishandling of exceptional conditions vulnerability. Crafted data that is passed to the JsonConvert.DeserializeObject method may trigger a StackOverflow exception resulting in denial of service. Depending on the usage of the library, an unauthenticated and remote attacker may be able to cause the denial of service condition.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://alephsecurity.com/2018/10/22/StackOverflowException/ Exploit
https://alephsecurity.com/vulns/aleph-2018004 Exploit
https://github.com/JamesNK/Newtonsoft.Json/commit/7e77bbe1beccceac4fc7b174b53abfefac278b66 Patch
https://github.com/JamesNK/Newtonsoft.Json/issues/2457 ExploitIssue TrackingThird Party Advisory
https://github.com/JamesNK/Newtonsoft.Json/pull/2462 Patch
https://github.com/advisories/GHSA-5crp-9r3c-p9vr Third Party Advisory
https://security.snyk.io/vuln/SNYK-DOTNET-NEWTONSOFTJSON-2774678 ExploitThird Party Advisory
https://vulncheck.com/advisories/vc-advisory-GHSA-5crp-9r3c-p9vr Third Party Advisory
https://alephsecurity.com/2018/10/22/StackOverflowException/ Exploit
https://alephsecurity.com/vulns/aleph-2018004 Exploit
https://github.com/JamesNK/Newtonsoft.Json/commit/7e77bbe1beccceac4fc7b174b53abfefac278b66 Patch
https://github.com/JamesNK/Newtonsoft.Json/issues/2457 ExploitIssue TrackingThird Party Advisory
https://github.com/JamesNK/Newtonsoft.Json/pull/2462 Patch
https://github.com/advisories/GHSA-5crp-9r3c-p9vr Third Party Advisory
https://security.snyk.io/vuln/SNYK-DOTNET-NEWTONSOFTJSON-2774678 ExploitThird Party Advisory
https://vulncheck.com/advisories/vc-advisory-GHSA-5crp-9r3c-p9vr Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2024-21907), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.