Vulnerability in Luckypennysoftware Automapper
CVE-2026-32933
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.007 (49.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 49.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.007 · change: +0.001
Affected products
- Luckypennysoftware Automapper — versions >= 16.0.0, < 16.1.1, < 15.1.1
Weakness classification (CWE)
References
- github.com/LuckyPennySoftware/AutoMapper/security/advisories/GHSA-rvv3-g6hj-g44x (Exploit, Vendor Advisory)
- github.com/LuckyPennySoftware/AutoMapper/commit/0afaf1e91648fca1a57512e94dd00a7… (Patch)
- github.com/LuckyPennySoftware/AutoMapper/releases/tag/v15.1.1 (Release Notes)
- github.com/LuckyPennySoftware/AutoMapper/releases/tag/v16.1.1 (Release Notes)
Frequently asked questions
- What is CVE-2026-32933?
- CVE-2026-32933 is a high-severity vulnerability in Luckypennysoftware Automapper, classified under Uncontrolled Recursion. CVSS score: 7.5/10. Published 2026-03-20.
- How severe is CVE-2026-32933?
- High severity. CVSS v3 base score is 7.5 out of 10.