CVE-2026-128081
AutoMapper: Denial of Service via uncontrolled recursion that bypasses MaxDepth
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
AutoMapper is a convention-based object-object mapper in .NET. Prior to 15.1.4 and from 16.0.0 until 16.3.0, AutoMapper can recurse without an effective MaxDepth limit when mapping polymorphic graphs through Include or IncludeBase, runtime-typed object or interface members, nested Dictionary<string, object> or ExpandoObject sources, or recursive ConvertUsing type converters. Deep attacker-influenced graphs on these paths can throw an uncatchable StackOverflowException and terminate the process. This issue is fixed in versions 15.1.4 and 16.3.0.
| CWE | CWE-674 |
| Vendor | luckypennysoftware |
| Product | automapper |
| Published | Nov 13, 2026 |
Stay Ahead of the Next One
Get instant alerts for luckypennysoftware automapper
Be the first to know when new high vulnerabilities affecting luckypennysoftware automapper are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
LuckyPennySoftware / AutoMapper
>= 16.0.0, < 16.3.0 < 15.1.4
References
github.com: https://github.com/LuckyPennySoftware/AutoMapper/security/advisories/GHSA-gpwp-5797-mjff github.com: https://github.com/LuckyPennySoftware/AutoMapper/commit/aee81b50574c3c7005283cca2b2396e295bd8ed9 github.com: https://github.com/LuckyPennySoftware/AutoMapper/commit/bdbbf5967d20d28e611ab65de1d96d1047a95ab9 github.com: https://github.com/LuckyPennySoftware/AutoMapper/releases/tag/v15.1.4 github.com: https://github.com/LuckyPennySoftware/AutoMapper/releases/tag/v16.3.0