CVE-2026-118750 json
ASP.NET Core Denial of Service Vulnerability
published yesterday modified 17h ago also EUVD-2026-122256 , GHSA-6527-9fp8-r4x6
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.1%
- EPSS 1.1% chance of exploitation in 30 days, percentile 65%
- 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.WebUtilities 2.3.14
- Microsoft Microsoft.AspNetCore.WebUtilities 2.3.14
Is CVE-2026-118750 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- yesterday
Exploit prediction
1.08% chance of exploitation in the next 30 days, higher than 65% of all scored CVEs (FIRST EPSS, 2026-11-11).
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 |
| GitHub | 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 |
| CNA | 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.WebUtilities | >=2.3.0, <2.3.14 |
2.3.14 |
Affected products
- Microsoft Microsoft.AspNetCore.WebUtilities
Classification
- Weakness
-
- CWE-770 Allocation of Resources Without Limits or Throttling
References
-
msrc.microsoft.com
/update-guide/vulnerability/CVE-2026-118750
vendor-advisory, patch, web
-
github.com
/dotnet/aspnetcore/commit/9a26c7414a4fbff45535c0830253c1b4479b0073
web
-
github.com
/dotnet/aspnetcore/security/advisories/GHSA-6527-9fp8-r4x6
web
-
nvd.nist.gov
/vuln/detail/CVE-2026-118750
advisory
-
github.com
/dotnet/announcements/issues/512
web
-
github.com
/dotnet/aspnetcore
package
-
github.com
/dotnet/aspnetcore/discussions/70476
web
Sources
- CVE List CVE-2026-118750
- GitHub Advisory GHSA-6527-9fp8-r4x6
- NVD CVE-2026-118750
Fencer Intel 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.