CVE-2026-116011

Crow before 1.3.4 Denial of Service via Deeply Nested JSON in crow::json::load()

Published Oct 24, 2026 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Crow before 1.3.4 Denial of Service via Deeply Nested JSON in crow::json::load()
First Time appeared Crowcpp
Crowcpp crow
Weaknesses CWE-674
CPEs cpe:2.3:a:crowcpp:crow:*:*:*:*:*:*:*:*
Vendors & Products Crowcpp
Crowcpp crow
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Oct 26, 2026, 5:40 PM
Reserved
Oct 24, 2026, 11:23 AM
Status
Awaiting Analysis
Published
Oct 24, 2026, 12:16 PM
Modified
Oct 26, 2026, 6:39 PM