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CVE-2026-128081

AutoMapper: Denial of Service via uncontrolled recursion that bypasses MaxDepth

publishedCWE-674

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.

Technical severity7.5 highCVSS 3.1 · CNA: GitHub_M
Published2026-11-13Source updated 2026-11-13
Collected2026-11-132 attributed sources

Fixes and workarounds

Fix

AutoMapper (NuGet): OSV reports a fixed version 16.3.0. Check the advisory for supported release branches.

Source: OSV GHSA-gpwp-5797-mjff

Fix

AutoMapper (NuGet): OSV reports a fixed version 15.1.4. Check the advisory for supported release branches.

Source: OSV GHSA-gpwp-5797-mjff

Affected products and versions

ProductVersionsAuthority
AutoMapper
LuckyPennySoftware 		>= 16.0.0, < 16.3.0 (affected)
< 15.1.4 (affected) 		CNA: GitHub_M
AutoMapper

AutoMapper
NuGet 		16.0.0 (affected, NuGet)
16.1.0 (affected, NuGet)
16.1.1 (affected, NuGet)
16.2.0 (affected, NuGet)
Ecosystem version events: introduced 16.0.0; fixed 16.3.0
Source events (ECOSYSTEM) 
[
  {
    "introduced": "16.0.0"
  },
  {
    "fixed": "16.3.0"
  }
]

Other versions: unaffected 		OSV GHSA-gpwp-5797-mjff
AutoMapper

AutoMapper
NuGet 		1.1.0.118 (affected, NuGet)
1.1.1 (affected, NuGet)
1.1.2 (affected, NuGet)
10.0.0 (affected, NuGet)
10.1.0 (affected, NuGet)
10.1.1 (affected, NuGet)
11.0.0 (affected, NuGet)
11.0.1 (affected, NuGet)
12.0.0 (affected, NuGet)
12.0.1 (affected, NuGet)
13.0.0 (affected, NuGet)
13.0.1 (affected, NuGet)
14.0.0 (affected, NuGet)
15.0.0 (affected, NuGet)
15.0.1 (affected, NuGet)
15.1.0 (affected, NuGet)
15.1.1 (affected, NuGet)
15.1.2 (affected, NuGet)
15.1.3 (affected, NuGet)
2.0.0 (affected, NuGet)
2.1.1 (affected, NuGet)
2.1.262 (affected, NuGet)
2.1.265 (affected, NuGet)
2.1.266 (affected, NuGet)
2.1.267 (affected, NuGet)
2.2.0 (affected, NuGet)
2.2.1 (affected, NuGet)
2.2.1-ci10 (affected, NuGet)
2.2.1-ci1000 (affected, NuGet)
2.2.1-ci11 (affected, NuGet)
2.2.1-ci15 (affected, NuGet)
2.2.1-ci16 (affected, NuGet)
2.2.1-ci17 (affected, NuGet)
2.2.1-ci4 (affected, NuGet)
2.2.1-ci5 (affected, NuGet)
2.2.1-ci6 (affected, NuGet)
2.2.1-ci7 (affected, NuGet)
2.2.1-ci8 (affected, NuGet)
2.2.1-ci9 (affected, NuGet)
2.2.1-ci9000 (affected, NuGet)
2.2.1-ci9001 (affected, NuGet)
2.2.1-ci9002 (affected, NuGet)
2.2.1-ci9003 (affected, NuGet)
2.2.1-ci9004 (affected, NuGet)
2.2.1-ci9005 (affected, NuGet)
2.2.1-ci9006 (affected, NuGet)
2.2.24-ci (affected, NuGet)
2.2.25-ci (affected, NuGet)
3.0.0 (affected, NuGet)
3.0.0-ci1026 (affected, NuGet)
3.0.0-ci1028 (affected, NuGet)
3.0.0-ci1029 (affected, NuGet)
3.0.0-ci1031 (affected, NuGet)
3.0.0-ci1032 (affected, NuGet)
3.0.0-ci1033 (affected, NuGet)
3.0.0-ci1034 (affected, NuGet)
3.0.0-ci1035 (affected, NuGet)
3.0.0-ci1036 (affected, NuGet)
3.0.0-ci1037 (affected, NuGet)
3.0.0-ci1038 (affected, NuGet)
3.0.0-ci1039 (affected, NuGet)
3.0.0-ci1040 (affected, NuGet)
3.0.0-ci1041 (affected, NuGet)
3.0.0-ci1042 (affected, NuGet)
3.0.0-ci1043 (affected, NuGet)
3.0.0-ci1053 (affected, NuGet)
3.1.0 (affected, NuGet)
3.1.0-ci1014 (affected, NuGet)
3.1.0-ci1016 (affected, NuGet)
3.1.0-ci1017 (affected, NuGet)
3.1.0-ci1018 (affected, NuGet)
3.1.0-ci1019 (affected, NuGet)
3.1.0-ci1020 (affected, NuGet)
3.1.0-ci1021 (affected, NuGet)
3.1.0-ci1022 (affected, NuGet)
3.1.0-ci1023 (affected, NuGet)
3.1.0-ci1024 (affected, NuGet)
3.1.0-ci1026 (affected, NuGet)
3.1.0-ci1027 (affected, NuGet)
3.1.0-ci1032 (affected, NuGet)
3.1.0-ci1033 (affected, NuGet)
3.1.0-ci1034 (affected, NuGet)
3.1.0-ci1035 (affected, NuGet)
3.1.0-ci1036 (affected, NuGet)
3.1.0-ci1037 (affected, NuGet)
3.1.0-ci1038 (affected, NuGet)
3.1.0-ci1043 (affected, NuGet)
3.1.0-ci1044 (affected, NuGet)
3.1.0-ci1045 (affected, NuGet)
3.1.0-ci1046 (affected, NuGet)
3.1.0-ci1047 (affected, NuGet)
3.1.0-ci1048 (affected, NuGet)
3.1.0-ci1049 (affected, NuGet)
3.1.0-ci1050 (affected, NuGet)
3.1.0-ci1051 (affected, NuGet)
3.1.0-ci1053 (affected, NuGet)
3.1.0-ci1056 (affected, NuGet)
3.1.0-ci1058 (affected, NuGet)
3.1.1 (affected, NuGet)
3.1.1-ci1000 (affected, NuGet)
3.1.1-ci1003 (affected, NuGet)
3.2.0 (affected, NuGet)
3.2.0-ci1000 (affected, NuGet)
3.2.0-ci1001 (affected, NuGet)
3.2.0-ci1002 (affected, NuGet)
3.2.0-ci1003 (affected, NuGet)
3.2.0-ci1004 (affected, NuGet)
3.2.0-ci1005 (affected, NuGet)
3.2.0-ci1008 (affected, NuGet)
3.2.0-ci1009 (affected, NuGet)
3.2.0-ci1010 (affected, NuGet)
3.2.0-ci1011 (affected, NuGet)
3.2.0-ci1014 (affected, NuGet)
3.2.0-ci1015 (affected, NuGet)
3.2.0-ci1016 (affected, NuGet)
3.2.0-ci1017 (affected, NuGet)
3.2.0-ci1021 (affected, NuGet)
3.2.0-ci1022 (affected, NuGet)
3.2.0-ci1023 (affected, NuGet)
3.2.0-ci1024 (affected, NuGet)
3.2.0-ci1025 (affected, NuGet)
3.2.0-ci1026 (affected, NuGet)
3.2.0-ci1027 (affected, NuGet)
3.2.0-ci1028 (affected, NuGet)
3.2.0-ci1029 (affected, NuGet)
3.2.0-ci1030 (affected, NuGet)
3.2.0-ci1033 (affected, NuGet)
3.2.0-ci1034 (affected, NuGet)
3.2.0-ci1035 (affected, NuGet)
3.2.0-ci1036 (affected, NuGet)
3.2.0-ci1037 (affected, NuGet)
3.2.0-ci1038 (affected, NuGet)
3.2.0-ci1039 (affected, NuGet)
3.2.0-ci1040 (affected, NuGet)
3.2.0-ci1041 (affected, NuGet)
3.2.0-ci1042 (affected, NuGet)
3.2.0-ci1043 (affected, NuGet)
3.2.1 (affected, NuGet)
3.2.1-ci1000 (affected, NuGet)
3.2.1-ci1001 (affected, NuGet)
3.2.1-ci1002 (affected, NuGet)
3.3.0 (affected, NuGet)
3.3.0-ci1000 (affected, NuGet)
3.3.0-ci1001 (affected, NuGet)
3.3.0-ci1002 (affected, NuGet)
3.3.0-ci1003 (affected, NuGet)
3.3.0-ci1004 (affected, NuGet)
3.3.0-ci1005 (affected, NuGet)
3.3.0-ci1006 (affected, NuGet)
3.3.0-ci1007 (affected, NuGet)
3.3.0-ci1008 (affected, NuGet)
3.3.0-ci1009 (affected, NuGet)
3.3.0-ci1016 (affected, NuGet)
3.3.0-ci1017 (affected, NuGet)
3.3.0-ci1018 (affected, NuGet)
3.3.0-ci1019 (affected, NuGet)
3.3.0-ci1020 (affected, NuGet)
3.3.0-ci1021 (affected, NuGet)
3.3.0-ci1022 (affected, NuGet)
3.3.0-ci1023 (affected, NuGet)
3.3.0-ci1024 (affected, NuGet)
3.3.0-ci1025 (affected, NuGet)
3.3.0-ci1026 (affected, NuGet)
3.3.0-ci1027 (affected, NuGet)
3.3.0-ci1028 (affected, NuGet)
3.3.0-ci1029 (affected, NuGet)
3.3.0-ci1030 (affected, NuGet)
3.3.0-ci1031 (affected, NuGet)
3.3.0-ci1032 (affected, NuGet)
3.3.0-ci1033 (affected, NuGet)
3.3.1 (affected, NuGet)
4.0.0 (affected, NuGet)
4.0.0-alpha1 (affected, NuGet)
4.0.0-ci1002 (affected, NuGet)
4.0.0-ci1004 (affected, NuGet)
4.0.0-ci1006 (affected, NuGet)
4.0.0-ci1007 (affected, NuGet)
4.0.0-ci1014 (affected, NuGet)
4.0.0-ci1015 (affected, NuGet)
4.0.0-ci1017 (affected, NuGet)
4.0.0-ci1018 (affected, NuGet)
4.0.0-ci1019 (affected, NuGet)
4.0.0-ci1020 (affected, NuGet)
4.0.0-ci1021 (affected, NuGet)
4.0.0-ci1026 (affected, NuGet)
4.0.0-ci1031 (affected, NuGet)
4.0.0-ci1032 (affected, NuGet)
4.0.0-ci1034 (affected, NuGet)
4.0.0-ci1036 (affected, NuGet)
4.0.0-ci1038 (affected, NuGet)
4.0.0-ci1046 (affected, NuGet)
4.0.0-ci1049 (affected, NuGet)
4.0.0-ci1050 (affected, NuGet)
4.0.0-ci1051 (affected, NuGet)
4.0.0-ci1052 (affected, NuGet)
4.0.0-ci1053 (affected, NuGet)
4.0.0-ci1054 (affected, NuGet)
4.0.0-ci1056 (affected, NuGet)
4.0.0-ci1057 (affected, NuGet)
4.0.0-ci1061 (affected, NuGet)
4.0.1 (affected, NuGet)
4.0.2 (affected, NuGet)
4.0.3 (affected, NuGet)
4.0.4 (affected, NuGet)
4.1.0 (affected, NuGet)
4.1.1 (affected, NuGet)
4.2.0 (affected, NuGet)
4.2.1 (affected, NuGet)
5.0.0 (affected, NuGet)
5.0.0-beta-1 (affected, NuGet)
5.0.1 (affected, NuGet)
5.0.2 (affected, NuGet)
5.1.0 (affected, NuGet)
5.1.1 (affected, NuGet)
5.2.0 (affected, NuGet)
6.0.0 (affected, NuGet)
6.0.1 (affected, NuGet)
6.0.2 (affected, NuGet)
6.1.0 (affected, NuGet)
6.1.1 (affected, NuGet)
6.2.0 (affected, NuGet)
6.2.1 (affected, NuGet)
6.2.2 (affected, NuGet)
7.0.0 (affected, NuGet)
7.0.0-alpha-0001 (affected, NuGet)
7.0.1 (affected, NuGet)
8.0.0 (affected, NuGet)
8.1.0 (affected, NuGet)
8.1.1 (affected, NuGet)
9.0.0 (affected, NuGet)
Ecosystem version events: introduced 0; fixed 15.1.4
Source events (ECOSYSTEM) 
[
  {
    "introduced": "0"
  },
  {
    "fixed": "15.1.4"
  }
]

Other versions: unaffected 		OSV GHSA-gpwp-5797-mjff

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

Version / scoreVectorAuthority
3.1 / 7.5
high		 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCNA: GitHub_M

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References

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