CVE-2026-94450

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Source
https://cve.org/CVERecord?id=CVE-2026-94450
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-94450.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-94450
Aliases
  • GHSA-5rw2-6x5m-v22x
Published
2026-09-22T20:04:44Z
Modified
2026-10-28T02:30:24Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
Potential denial of service when configured to send Retry packets in s2n-quic
Details

Improper validation of the Destination Connection ID length in s2n-quic 1.88.0 and earlier may allow an unauthenticated remote user to cause a denial of service by shutting down a server endpoint via a single crafted UDP datagram. Only server endpoints specifically configured to send Retry packets are affected.

To remediate this issue, users should upgrade to version v1.89.0 or later.

Database specific 
{
    "cna_assigner": "AMZN",
    "cwe_ids": [
        "CWE-1284",
        "CWE-617"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/94xxx/CVE-2026-94450.json"
}
References

Affected packages

Git / github.com/aws/s2n-quic

Affected ranges

Type
GIT
Repo
https://github.com/aws/s2n-quic
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
845f1cce431e30fc9c3802fda0a7fb0d65c201be
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "last_affected": "1.88.0"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StandardRange"
        },
        {
            "original_tag": "v1.89.0",
            "range": [
                {
                    "fixed": "845f1cce431e30fc9c3802fda0a7fb0d65c201be"
                }
            ],
            "source": "REFERENCES_TAG"
        }
    ]
}

Affected versions

v1.*
v1.0.0
v1.0.1
v1.0.2
v1.1.0
v1.1.1
v1.10.0
v1.11.0
v1.12.0
v1.13.0
v1.14.0
v1.15.0
v1.16.0
v1.17.1
v1.18.0
v1.19.0
v1.2.0
v1.20.0
v1.21.0
v1.22.0
v1.23.0
v1.24.0
v1.25.0
v1.26.0
v1.27.0
v1.28.0
v1.29.0
v1.3.0
v1.30.0
v1.31.0
v1.32.0
v1.33.0
v1.34.0
v1.35.0
v1.35.1
v1.36.0
v1.37.0
v1.38.0
v1.38.1
v1.39.0
v1.4.0
v1.40.0
v1.41.0
v1.42.0
v1.43.0
v1.45.0
v1.46.0
v1.47.0
v1.48.0
v1.49.0
v1.5.0
v1.50.0
v1.51.0
v1.52.0
v1.52.1
v1.54.0
v1.55.0
v1.56.0
v1.57.0
v1.58.0
v1.59.0
v1.6.0
v1.6.1
v1.60.0
v1.61.0
v1.62.0
v1.63.0
v1.64.0
v1.65
v1.66.0
v1.67.0
v1.68.0
v1.69.0
v1.7.0
v1.70.0
v1.71.0
v1.72.0
v1.73.0
v1.74.0
v1.75.0
v1.76.0
v1.77.0
v1.78.0
v1.79.0
v1.8.0
v1.80.0
v1.81.0
v1.82.0
v1.83.0
v1.84.0
v1.85.0
v1.86.0
v1.87.0
v1.88.0
v1.9.0
v1.9.1
v1.9.2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-94450.json"