CVE-2026-116011
CVE-2026-116011 · Crow before 1.3.4 Denial of Service via Deeply Nested JSON in crow::json::load()
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 8.7 · High · EPSS 0.7% · Public exploit · Fix available
- Published
- Updated
Affected products and versions
crow
- Versions
- ≥ 0, < 1.3.4: Affected (semver)
Update to 1.3.4
Original sources
- https://github.com/CrowCpp/Crow/security/advisories/GHSA-7x84-xhp8-6cqj
- https://github.com/CrowCpp/Crow/commit/6956b7ca93c5df22f5aaccd670e5aa000c0d882b
- https://github.com/CrowCpp/Crow/releases/tag/v1.3.4
- https://github.com/CrowCpp/Crow/blob/v1.3.3/include/crow/json.h#L878
- https://www.vulncheck.com/advisories/crow-before-1.3.4-denial-of-service-via-deeply-nested-json-in-crow-json-load
- https://nvd.nist.gov/vuln/detail/CVE-2026-116011