Description
Missing connection and header-read timeouts and the absence of a concurrent-connection cap in the default serve() path of Amazon aws-smithy-http-server might allow remote attackers to cause a denial of service by opening many connections and sending partial requests that are never completed, exhausting server sockets and tasks.
To mitigate this issue, users should upgrade to aws-smithy-http-server 0.66.5 or later.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| AWS | aws-smithy-http-server | ≤ 0.66.4 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| crates.io | aws-smithy-http-server | < 0.66.5 | 0.66.5 | GHSA-jvxp-qmx7-gjpx |
References
- https://crates.io/crates/aws-smithy-http-server/0.66.5 release-notes patch
- https://aws.amazon.com/security/security-bulletins/2026-064-aws/ vendor-advisory
- https://github.com/smithy-lang/smithy-rs/security/advisories/GHSA-jvxp-qmx7-gjpx release-notes