CVE-2026-10740
5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| AWS | s2n-quic | 0 <= 1.8.1 | affected |
Weaknesses
- CWE-770: CWE-770: Allocation of Resources Without Limits or Throttling
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: yes
- Technical Impact: partial
References
- https://github.com/aws/s2n-quic/releases/tag/v1.82.0
- https://aws.amazon.com/security/security-bulletins/2026-042-aws/
- https://github.com/aws/s2n-quic/security/advisories/GHSA-9q54-f358-3fqf
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