CVE-2026-32933

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

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.

Affected

LuckyPennySoftware · AutoMapper

CVSS v3.1 GITHUB

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.69% chance of exploitation in the next 30 days, 52nd percentile

Published

2026-03-20

Proof-of-concept exploits (1)

• advisories/GHSA-rvv3-g6hj-g44x

Security advisories

• LuckyPennySoftware/AutoMapper/security/advisories/GHSA-rvv3-g6hj-g44x
• LuckyPennySoftware/AutoMapper/commit/0afaf1e91648fca1a57512e94dd00a76ee016816

References

• CVE Record
• NVD entry