CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
4Tags
Description
AutoMapper is a convention-based object-object mapper in .NET. Versions prior to 15.1.1 and 16.1.1 are vulnerable to a Denial of Service (DoS) attack. When mapping deeply nested object graphs, the library uses recursive method calls without enforcing a default maximum depth limit. This allows an attacker to provide a specially crafted object graph that exhausts the thread's stack memory, triggering a `StackOverflowException` and causing the entire application process to terminate. Versions 15.1.1 and 16.1.1 fix the issue.
Analysis
AutoMapper, a widely-used convention-based object-object mapper for .NET applications, contains a stack exhaustion vulnerability that allows remote attackers to crash applications via deeply nested object graphs. Versions prior to 15.1.1 and 16.1.1 are affected. …
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Remediation
Within 24 hours: Identify all applications using AutoMapper and their current versions; notify development teams and establish incident response readiness. Within 7 days: Implement network-level compensating controls (WAF rules blocking nested object payloads, rate limiting); segment affected systems from external attack surfaces if possible. …
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-13505
GHSA-rvv3-g6hj-g44x