Description
Uncontrolled recursion in the unknown-key skip path of the aws-smithy-json runtime crate before 0.62.7, which the smithy-rs code generator invokes from every generated struct deserializer, might allow remote unauthenticated users to cause a denial of service (process abort via stack exhaustion) via a single small HTTP request containing deeply nested JSON to a smithy-rs generated server.
To remediate this issue, users should upgrade to aws-smithy-json 0.62.7 or later and rebuild.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| AWS | aws-smithy-json | 0.32.0 – ≤ 0.62.6 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | goose | 1.38.0-1.el10_2 | RHSA-2026:67593 |
| RHEL 9 | goose | 1.38.0-1.el9_8 | RHSA-2026:67595 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | codex | 0.162.1-r1 | — |
| Wolfi rolling | pixi | 0.81.0-r3 | — |
| Wolfi rolling | zed | 1.21.0-r4 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| crates.io | aws-smithy-json | < 0.62.7 | 0.62.7 | GHSA-8ffr-xgwf-xj56 |
Advisories 2
- RHSA-2026:67595 Red Hat Security Advisory: goose bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 16, 2026
- RHSA-2026:67593 Red Hat Security Advisory: goose bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 16, 2026