CVE-2026-10740

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Source
https://cve.org/CVERecord?id=CVE-2026-10740
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-10740.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-10740
Aliases
  • GHSA-9q54-f358-3fqf
Published
2026-06-10T18:09:36.070Z
Modified
2026-07-08T08:12:25.408523275Z
Severity
  • 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N CVSS Calculator
Summary
Excessive memory allocation in s2n-quic
Details

Unbounded memory allocation in the CRYPTO frame reassembler in s2n-quic before 1.8.2 may allow an unauthenticated remote actor to cause a denial of service (degraded availability) by sending crafted QUIC Initial packets.

To remediate this issue, users should upgrade to v1.8.2.

Database specific 
{
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "last_affected": "1.8.1"
                }
            ]
        },
        {
            "source": "CPE_FIELD",
            "extracted_events": [
                {
                    "last_affected": "1.8.1"
                }
            ]
        },
        {
            "source": "DESCRIPTION",
            "extracted_events": [
                {
                    "introduced": "s2n-quic"
                },
                {
                    "fixed": "1.8.2"
                }
            ]
        }
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/10xxx/CVE-2026-10740.json",
    "cna_assigner": "AMZN",
    "cwe_ids": [
        "CWE-770"
    ]
}
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
4438384b247e5cf8615892cfe1ac1c4dc75a2119
Database specific 
{
    "source": "REFERENCES"
}

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
v1.9.0
v1.9.1
v1.9.2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-10740.json"