PT-2026-26547 · Luckypennysoftware · Automapper

Published 2026-03-20 · Updated 2026-03-20 · CVE-2026-32933

Mitre

CVSS v3.1

7.5

High

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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.

Fix

Uncontrolled Recursion

Weakness Enumeration

CWE-674

Related Identifiers

CVE-2026-32933

Affected Products

Automapper

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-32933 · Security Note
• https://github.com/LuckyPennySoftware/AutoMapper/releases/tag/v16.1.1 · Note
• https://github.com/LuckyPennySoftware/AutoMapper/commit/0afaf1e91648fca1a57512e94dd00a76ee016816 · Note
• https://github.com/LuckyPennySoftware/AutoMapper/security/advisories/GHSA-rvv3-g6hj-g44x · Note
• https://github.com/LuckyPennySoftware/AutoMapper/releases/tag/v15.1.1 · Note