Rewindex/CVEs/Amazon Web Services

CVE-2026-10740: Excessive memory allocation in s2n-quic

Description

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.

Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L · CWE-770

Tracked companies

Amazon Web Services

Mapped from the CVE’s affected-product data, NVD CPE matches, vendor advisories or package feeds. A mapping means the vendor’s software is named, not that its hosted service was exposed.

Status incidents that name it

No tracked status incident names this CVE.

Affected vendors and products

AWS: s2n-quic

References

• CVE record on cve.org (opens in new tab)
• NVD entry (opens in new tab)
• aws.amazon.com/security/security-bulletins/2026-042-aws/ (opens in new tab)
• github.com/aws/s2n-quic/releases/tag/v1.82.0 (opens in new tab)
• github.com/aws/s2n-quic/security/advisories/GHSA-9q54-f358-3fqf (opens in new tab)

All CVEsMarkdownJSON

• CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
• This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
• Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
• EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)