CVE-2026-10740
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.
- Published Jun 10, 2026
- CVSS 6.9 medium
- 0.3% chance of exploitation in the next 30 days (EPSS)
- A fix is available
Affected software
In the news
- CVE-2026-10740 - Excessive memory allocation in s2n-quic AWS Security Bulletins ·
- CVE-2026-10740 - Excessive memory allocation in s2n-quic AWS Security Bulletins ·