Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Luckypennysoftware | Automapper | < 15.1.1 |
Related Weaknesses (CWE)
References
- https://github.com/LuckyPennySoftware/AutoMapper/commit/0afaf1e91648fca1a57512e9Patch
- https://github.com/LuckyPennySoftware/AutoMapper/releases/tag/v15.1.1Release Notes
- https://github.com/LuckyPennySoftware/AutoMapper/releases/tag/v16.1.1Release Notes
- https://github.com/LuckyPennySoftware/AutoMapper/security/advisories/GHSA-rvv3-gVendor AdvisoryExploit
FAQ
What is CVE-2026-32933?
CVE-2026-32933 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 lib...
How severe is CVE-2026-32933?
CVE-2026-32933 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-32933?
Check the references section above for vendor advisories and patch information. Affected products include: Luckypennysoftware Automapper.