CVE-2026-26130 json
ASP.NET Core Denial of Service Vulnerability
published 2026-03-10 8 mo ago modified 2026-09-10 1 mo ago also BIT-aspnet-core-2026-26130 , EUVD-2026-10693 , GHSA-4vgm-c2wm-63mw
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.2%
- EPSS 3.2% chance of exploitation in 30 days, percentile 88%
- public exploits
- 0
- none known
Summary
Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.
Patch / fix
- nuget Microsoft.AspNetCore.App.Runtime.linux-arm 8.0.25, 9.0.14, 10.0.4
- nuget Microsoft.AspNetCore.App.Runtime.linux-arm64 8.0.25, 9.0.14, 10.0.4
- nuget Microsoft.AspNetCore.App.Runtime.linux-musl-arm 8.0.25, 9.0.14, 10.0.4
- nuget Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 8.0.25, 9.0.14, 10.0.4
- nuget Microsoft.AspNetCore.App.Runtime.linux-musl-x64 8.0.25, 9.0.14, 10.0.4
- nuget Microsoft.AspNetCore.App.Runtime.linux-x64 8.0.25, 9.0.14, 10.0.4
- nuget Microsoft.AspNetCore.App.Runtime.osx-arm64 8.0.25, 9.0.14, 10.0.4
- nuget Microsoft.AspNetCore.App.Runtime.osx-x64 8.0.25, 9.0.14, 10.0.4
- nuget Microsoft.AspNetCore.App.Runtime.win-arm 8.0.25, 9.0.14, 10.0.4
- nuget Microsoft.AspNetCore.App.Runtime.win-arm64 8.0.25, 9.0.14, 10.0.4
- nuget Microsoft.AspNetCore.App.Runtime.win-x64 8.0.25, 9.0.14, 10.0.4
- nuget Microsoft.AspNetCore.App.Runtime.win-x86 8.0.25, 9.0.14, 10.0.4
- bitnami aspnet-core 8.0.25, 9.0.14, 10.0.4
- Microsoft ASP.NET Core 10.0 10.0.4
- Microsoft ASP.NET Core 8.0 8.0.25
- Microsoft ASP.NET Core 9.0 9.0.14
- Red Hat Red Hat Enterprise Linux 10 0:8.0.125-1.el10_1, 0:9.0.115-1.el10_1, 0:10.0.104-1.el10_1
- Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support 0:8.0.125-1.el10_0, 0:9.0.115-1.el10_0
- Red Hat Red Hat Enterprise Linux 8 0:8.0.125-1.el8_10, 0:9.0.115-1.el8_10, 0:10.0.104-1.el8_10
- Red Hat Red Hat Enterprise Linux 9 0:8.0.125-1.el9_7, 0:9.0.115-1.el9_7, 0:10.0.104-1.el9_7
- Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support 0:8.0.125-1.el9_4
- Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support 0:8.0.125-1.el9_6, 0:9.0.115-1.el9_6
- dotnet8 Ubuntu 22.04 LTS 8.0.125-8.0.25-0ubuntu1~22.04.1
- dotnet8 Ubuntu 24.04 LTS 8.0.125-8.0.25-0ubuntu1~24.04.1
- dotnet8 Ubuntu 25.10 8.0.125-8.0.25-0ubuntu1~25.10.1
- dotnet9 Ubuntu 25.10 9.0.115-9.0.14-0ubuntu1~25.10.1
- dotnet10 Ubuntu 24.04 LTS 10.0.104-10.0.4-0ubuntu1~24.04.1
- dotnet10 Ubuntu 25.10 10.0.104-10.0.4-0ubuntu1~25.10.1
- dotnet10 Ubuntu 26.04 LTS 10.0.104-10.0.4-0ubuntu1
ubuntu advisories UBUNTU-CVE-2026-26130
Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
- dotnet RHEL 8 10.0.104-1.el8_10
- dotnet10.0 RHEL 8 10.0.104-1.el8_10
- dotnet-host RHEL 8 10.0.4-1.el8_10
- dotnet-sdk-10.0 RHEL 8 10.0.104-1.el8_10
- dotnet-hostfxr-10.0 RHEL 8 10.0.4-1.el8_10
- dotnet-runtime-10.0 RHEL 8 10.0.4-1.el8_10
- dotnet-sdk-aot-10.0 RHEL 8 10.0.104-1.el8_10
- dotnet-sdk-dbg-10.0 RHEL 8 10.0.104-1.el8_10
red hat advisories RHSA-2026:10084RHSA-2026:10083RHSA-2026:10082RHSA-2026:10091RHSA-2026:10085RHSA-2026:4458
- dotnet-sdk-9.0 AlmaLinux 8 9.0.115-1.el8_10
- dotnet-hostfxr-9.0 AlmaLinux 8 9.0.14-1.el8_10
- dotnet-runtime-9.0 AlmaLinux 8 9.0.14-1.el8_10
- dotnet-sdk-aot-9.0 AlmaLinux 8 9.0.115-1.el8_10
- dotnet-sdk-dbg-9.0 AlmaLinux 8 9.0.115-1.el8_10
- dotnet-templates-9.0 AlmaLinux 8 9.0.115-1.el8_10
- aspnetcore-runtime-9.0 AlmaLinux 8 9.0.14-1.el8_10
- dotnet-runtime-dbg-9.0 AlmaLinux 8 9.0.14-1.el8_10
almalinux advisories ALSA-2026:4443ALSA-2026:4445ALSA-2026:4450ALSA-2026:4451ALSA-2026:4453ALSA-2026:4454
- dotnet9.0 Rocky Linux 10 9.0.115-1.el10_1
- dotnet8.0 Rocky Linux 10 8.0.125-1.el10_1
- dotnet10.0 Rocky Linux 10 10.0.104-1.el10_1
- dotnet10.0 Rocky Linux 9 10.0.104-1.el9_7
- dotnet8.0 Rocky Linux 9 8.0.125-1.el9_7
- dotnet9.0 Rocky Linux 9 9.0.115-1.el9_7
- dotnet9.0 Rocky Linux 8 9.0.115-1.el8_10
- dotnet8.0 Rocky Linux 8 8.0.125-1.el8_10
rocky linux advisories RLSA-2026:4450RLSA-2026:4451RLSA-2026:4453RLSA-2026:4445RLSA-2026:4454RLSA-2026:4456
- dotnet8-runtime Alpine 3.24, Alpine 3.23, Alpine 3.22 +2 more 8.0.25-r0
- dotnet9-runtime Alpine 3.24, Alpine 3.23, Alpine 3.22 +1 more 9.0.14-r0
- dotnet10-runtime Alpine 3.24, Alpine 3.23 10.0.4-r0
alpine advisories ALPINE-CVE-2026-26130
Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2026-26130 updated cvss 7.5
asp.net: ASP.NET Core: Denial of Service via uncontrolled resource allocation
-
Red Hat CodeReady Linux Builder EUS (v.9.4) dotnet-sdk-8.0-source-built-artifacts 8.0.125-1.el9_4fixed: vendor fix RHSA-2026:10082
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Red Hat CodeReady Linux Builder EUS (v.9.6) dotnet-sdk-8.0-source-built-artifacts 8.0.125-1.el9_6, dotnet-sdk-9.0-source-built-artifacts 9.0.115-1.el9_6fixed: vendor fix RHSA-2026:10084
-
Red Hat Enterprise Linux AppStream (v. 8) dotnet 10.0.104-1.el8_10, dotnet8.0 8.0.125-1.el8_10, dotnet9.0 9.0.115-1.el8_10, dotnet-host 10.0.4-1.el8_10, dotnet10.0 10.0.104-1.el8_10, dotnet-sdk-8.0 8.0.125-1.el8_10, +35 morefixed: vendor fix RHSA-2026:4458
-
Red Hat Enterprise Linux AppStream (v. 9) dotnet8.0 8.0.125-1.el9_7, dotnet9.0 9.0.115-1.el9_7, dotnet-host 10.0.4-1.el9_7, dotnet10.0 10.0.104-1.el9_7, dotnet-sdk-8.0 8.0.125-1.el9_7, dotnet-sdk-9.0 9.0.115-1.el9_7, +34 morefixed: vendor fix RHSA-2026:4445
-
Red Hat Enterprise Linux AppStream (v. 10) dotnet8.0 8.0.125-1.el10_1, dotnet9.0 9.0.115-1.el10_1, dotnet-host 10.0.4-1.el10_1, dotnet10.0 10.0.104-1.el10_1, dotnet-sdk-8.0 8.0.125-1.el10_1, dotnet-sdk-9.0 9.0.115-1.el10_1, +34 morefixed: vendor fix RHSA-2026:4453
-
Red Hat Enterprise Linux AppStream EUS (v. 10.0) dotnet8.0 8.0.125-1.el10_0, dotnet9.0 9.0.115-1.el10_0, dotnet-host 9.0.14-1.el10_0, dotnet-sdk-8.0 8.0.125-1.el10_0, dotnet-sdk-9.0 9.0.115-1.el10_0, dotnet-hostfxr-8.0 8.0.25-1.el10_0, +21 morefixed: vendor fix RHSA-2026:10091
-
Red Hat Enterprise Linux AppStream EUS (v.9.4) dotnet8.0 8.0.125-1.el9_4, dotnet-host 8.0.25-1.el9_4, dotnet-sdk-8.0 8.0.125-1.el9_4, dotnet-hostfxr-8.0 8.0.25-1.el9_4, dotnet-runtime-8.0 8.0.25-1.el9_4, dotnet-sdk-dbg-8.0 8.0.125-1.el9_4, +8 morefixed: vendor fix RHSA-2026:10082
-
Red Hat Enterprise Linux AppStream EUS (v.9.6) dotnet8.0 8.0.125-1.el9_6, dotnet9.0 9.0.115-1.el9_6, dotnet-host 9.0.14-1.el9_6, dotnet-sdk-8.0 8.0.125-1.el9_6, dotnet-sdk-9.0 9.0.115-1.el9_6, dotnet-hostfxr-8.0 8.0.25-1.el9_6, +21 morefixed: vendor fix RHSA-2026:10084
show 5 moreshow fewer
-
Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) dotnet-sdk-8.0-source-built-artifacts 8.0.125-1.el9_7, dotnet-sdk-9.0-source-built-artifacts 9.0.115-1.el9_7, dotnet-sdk-10.0-source-built-artifacts 10.0.104-1.el9_7fixed: vendor fix RHSA-2026:4445
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Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) dotnet-sdk-8.0-source-built-artifacts 8.0.125-1.el10_1, dotnet-sdk-9.0-source-built-artifacts 9.0.115-1.el10_1, dotnet-sdk-10.0-source-built-artifacts 10.0.104-1.el10_1fixed: vendor fix RHSA-2026:4453
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Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) dotnet-sdk-8.0-source-built-artifacts 8.0.125-1.el10_0, dotnet-sdk-9.0-source-built-artifacts 9.0.115-1.el10_0fixed: vendor fix RHSA-2026:10091
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Red Hat Enterprise Linux CRB (v. 8) dotnet-sdk-8.0-source-built-artifacts 8.0.125-1.el8_10, dotnet-sdk-9.0-source-built-artifacts 9.0.115-1.el8_10, dotnet-sdk-10.0-source-built-artifacts 10.0.104-1.el8_10fixed: vendor fix RHSA-2026:4458
-
Red Hat Enterprise Linux 9 dotnet6.0, dotnet7.0, dotnet-host, dotnet-sdk-6.0, dotnet-sdk-7.0, dotnet-hostfxr-6.0, +16 morenot affected: vulnerable code not present
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 8 mo ago
Exploit prediction
3.18% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C |
| CISA ADP | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| OSV | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| nuget | Microsoft.AspNetCore.App.Runtime.linux-arm | >=8.0.0, <8.0.25 >=9.0.0, <9.0.14 >=10.0.0, <10.0.4 |
8.0.25 9.0.14 10.0.4 |
| nuget | Microsoft.AspNetCore.App.Runtime.linux-arm64 | >=8.0.0, <8.0.25 >=9.0.0, <9.0.14 >=10.0.0, <10.0.4 |
8.0.25 9.0.14 10.0.4 |
| nuget | Microsoft.AspNetCore.App.Runtime.linux-musl-arm | >=8.0.0, <8.0.25 >=9.0.0, <9.0.14 >=10.0.0, <10.0.4 |
8.0.25 9.0.14 10.0.4 |
| nuget | Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 | >=8.0.0, <8.0.25 >=9.0.0, <9.0.14 >=10.0.0, <10.0.4 |
8.0.25 9.0.14 10.0.4 |
| nuget | Microsoft.AspNetCore.App.Runtime.linux-musl-x64 | >=8.0.0, <8.0.25 >=9.0.0, <9.0.14 >=10.0.0, <10.0.4 |
8.0.25 9.0.14 10.0.4 |
| nuget | Microsoft.AspNetCore.App.Runtime.linux-x64 | >=8.0.0, <8.0.25 >=9.0.0, <9.0.14 >=10.0.0, <10.0.4 |
8.0.25 9.0.14 10.0.4 |
| nuget | Microsoft.AspNetCore.App.Runtime.osx-arm64 | >=8.0.0, <8.0.25 >=9.0.0, <9.0.14 >=10.0.0, <10.0.4 |
8.0.25 9.0.14 10.0.4 |
| nuget | Microsoft.AspNetCore.App.Runtime.osx-x64 | >=8.0.0, <8.0.25 >=9.0.0, <9.0.14 >=10.0.0, <10.0.4 |
8.0.25 9.0.14 10.0.4 |
| nuget | Microsoft.AspNetCore.App.Runtime.win-arm | >=8.0.0, <8.0.25 >=9.0.0, <9.0.14 >=10.0.0, <10.0.4 |
8.0.25 9.0.14 10.0.4 |
| nuget | Microsoft.AspNetCore.App.Runtime.win-arm64 | >=8.0.0, <8.0.25 >=9.0.0, <9.0.14 >=10.0.0, <10.0.4 |
8.0.25 9.0.14 10.0.4 |
| nuget | Microsoft.AspNetCore.App.Runtime.win-x64 | >=8.0.0, <8.0.25 >=9.0.0, <9.0.14 >=10.0.0, <10.0.4 |
8.0.25 9.0.14 10.0.4 |
| nuget | Microsoft.AspNetCore.App.Runtime.win-x86 | >=8.0.0, <8.0.25 >=9.0.0, <9.0.14 >=10.0.0, <10.0.4 |
8.0.25 9.0.14 10.0.4 |
| bitnami | aspnet-core | >=8.0.0, <8.0.25 >=9.0.0, <9.0.14 >=10.0.0, <10.0.4 |
8.0.25 9.0.14 10.0.4 |
Affected products
- Microsoft ASP.NET Core 10.0
- Microsoft ASP.NET Core 8.0
- Microsoft ASP.NET Core 9.0
- Red Hat Red Hat Enterprise Linux 10
- Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support
- Red Hat Red Hat Enterprise Linux 8
- Red Hat Red Hat Enterprise Linux 9
- Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support
- Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support
Classification
- Weakness
-
- CWE-770 Allocation of Resources Without Limits or Throttling
References
-
msrc.microsoft.com
/update-guide/vulnerability/CVE-2026-26130
vendor-advisory, patch, web, advisory
-
access.redhat.com
/errata/RHSA-2026:10091
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:10083
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:4453
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:4451
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:4450
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:4458
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:4455
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:4443
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:10082
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:10084
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:10085
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:4445
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:4454
vendor-advisory, web
-
access.redhat.com
/errata/RHSA-2026:4456
vendor-advisory, web
-
access.redhat.com
/security/cve/CVE-2026-26130
vdb-entry, web
-
bugzilla.redhat.com
/show_bug.cgi?id=2446134
issue-tracking, web
-
security.access.redhat.com
/data/csaf/v2/vex/2026/cve-2026-26130.json
web
-
github.com
/dotnet/aspnetcore/security/advisories/GHSA-4vgm-c2wm-63mw
web
-
nvd.nist.gov
/vuln/detail/CVE-2026-26130
advisory, web
-
github.com
/dotnet/aspnetcore
package
-
cve.org
/CVERecord?id=CVE-2026-26130
web
Sources
- CVE List CVE-2026-26130
- GitHub Advisory GHSA-4vgm-c2wm-63mw
- NVD CVE-2026-26130
- OSV BIT-aspnet-core-2026-26130
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.