High severity7.5NVD Advisory· Published Oct 24, 2026
CVE-2026-116011
CVE-2026-116011
Description
Crow before 1.3.4 contains an uncontrolled recursion vulnerability in crow::json::load() that allows remote unauthenticated attackers to crash the server by sending deeply nested JSON. Attackers can send a request body with thousands of nested objects to exhaust the worker thread stack, terminating the process and dropping all connections.
Affected products
1Patches
Vulnerability mechanics
References
5- github.com/CrowCpp/Crow/blob/v1.3.3/include/crow/json.hnvd
- github.com/CrowCpp/Crow/commit/6956b7ca93c5df22f5aaccd670e5aa000c0d882bnvd
- github.com/CrowCpp/Crow/releases/tag/v1.3.4nvd
- github.com/CrowCpp/Crow/security/advisories/GHSA-7x84-xhp8-6cqjnvd
- www.vulncheck.com/advisories/crow-before-1.3.4-denial-of-service-via-deeply-nested-json-in-crow-json-loadnvd
News mentions
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