CVE-2026-32933
Versions prior to 15.1.1 and 16.1.1 are vulnerable to a Denial of Service (DoS) attack.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.54%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.54% probability · 44th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-674
- Affected
- luckypennysoftware/automapper
- Source
- security-advisories@github.com
References
- https://github.com/LuckyPennySoftware/AutoMapper/commit/0afaf1e91648fca1a57512e94dd00a76ee016816Patch
- 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-g6hj-g44xExploit, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.