CVE-2026-32933

HIGH

AutoMapper Vulnerable to Denial of Service (DoS) via Uncontrolled Recursion

Title source: cna
STIX 2.1

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.

Scores

CVSS v3 7.5
EPSS 0.0002
EPSS Percentile 5.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-674
Status published
Products (4)
luckypennysoftware/automapper < 15.1.1
LuckyPennySoftware/AutoMapper < 15.1.1
LuckyPennySoftware/AutoMapper >= 16.0.0, < 16.1.1
nuget/AutoMapper 16.0.0 - 16.1.1NuGet
Published Mar 20, 2026
Tracked Since Mar 20, 2026