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
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| CrowCpp | Crow | < 1.3.4 | 1.3.4 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 1 repository
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D7EAD/CVE-2026-116011 ★ 1 · Oct 24, 2026
A remote denial of service vulnerability in CrowCPP due to uncontrolled recursion.
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- GitHub Security Advisory (GHSA-7x84-xhp8-6cqj) vendor-advisory
- https://github.com/CrowCpp/Crow/commit/6956b7ca93c5df22f5aaccd670e5aa000c0d882b patch
- Crow v1.3.4 Release Notes release-notes
- https://github.com/CrowCpp/Crow/blob/v1.3.3/include/crow/json.h#L878 technical-description
- VulnCheck Advisory: Crow before 1.3.4 Denial of Service via Deeply Nested JSON in crow::json::load() third-party-advisory