GHSA-p86g-xrr2-pf7c

Source

https://github.com/advisories/GHSA-p86g-xrr2-pf7c

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-p86g-xrr2-pf7c/GHSA-p86g-xrr2-pf7c.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-p86g-xrr2-pf7c

Aliases

CVE-2026-54772

Published

2026-06-19T20:46:40Z

Modified

2026-06-19T21:00:15.933165715Z

Severity

7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator

Summary

CoreWCF: Pre-authentication infinite-loop CPU exhaustion in CoreWCF net.tcp / net.pipe / net.uds framing handshake

Details

Impact

An unauthenticated remote attacker can pin one server thread‑pool worker at 100 % CPU per connection. With a few connections, the CPU usage can be exhausted.

Preconditions

An attacker being able to reach a service which is exposing an endpoint using one of NetTcpBinding, NetNamedPipeBinding, or UnixDomainSocketBinding.

Patches

Fixed in CoreWCF v1.8.1 and v1.9.1

Workarounds

None

Database specific

{
    "nvd_published_at": null,
    "github_reviewed_at": "2026-06-19T20:46:40Z",
    "github_reviewed": true,
    "severity": "HIGH",
    "cwe_ids": [
        "CWE-400",
        "CWE-835"
    ]
}

References

Affected packages

NuGet / CoreWCF.NetFramingBase

Package

Name: CoreWCF.NetFramingBase; View open source insights on deps.dev
Purl: pkg:nuget/CoreWCF.NetFramingBase

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.8.1

Affected versions

1.*

1.4.0-preview1

1.4.0

1.4.1

1.4.2

1.5.0-preview1

1.5.0

1.5.1

1.5.2

1.6.0

1.7.0

1.8.0

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-p86g-xrr2-pf7c/GHSA-p86g-xrr2-pf7c.json"