https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-06T18:09:33.526661+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/euvd-2026-326519 EUVD-2026-326519 2026-10-06T18:09:33.528541+00:00 EUVD-2026-326519 https://cve.radiocsirt.org/vuln/fkie_cve-2026-10740 fkie_cve-2026-10740 2026-10-06T18:09:33.528576+00:00

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.

 https://cve.radiocsirt.org/vuln/ghsa-9q54-f358-3fqf GHSA-9q54-f358-3fqf — s2n-quic has excessive memory allocation 2026-10-06T18:09:33.528611+00:00

Affected: crates.io: s2n-quic

s2n-quic is a Rust implementation of the QUIC protocol. An unauthenticated user can attempt to exhaust server memory on an s2n-quic endpoint by sending crafted CRYPTO frames with high offsets. The buffer used for processing CRYPTO frames does not enforce a maximum size. In the worst case, a single 1200-byte packet can cause approximately 9.4 MB of allocation. By repeatedly sending such packets, the resulting memory pressure could cause denial of service. No valid handshake is required.

Impacted versions: <= v1.81.0

### Patches This issue has been addressed in s2n-quic version v1.82.0. We recommend upgrading to the latest version and ensuring any forked or derivative code is patched to incorporate the new fixes.

### Workarounds There is no workaround that fully mitigates this issue. Upgrading to the patched version is the recommended remediation.

### References If there are any questions or comments about this advisory, contact AWS Security via the [vulnerability reporting page](https://aws.amazon.com/security/vulnerability-reporting) or directly via email to [aws-security@amazon.com](mailto:aws-security@amazon.com). Please do not create a public GitHub issue.