CVE-2026-46689

Kanidm is an identity management platform. Prior to version 1.9.3, a single unauthenticated GET to any /scim/v1/... endpoint with a ?filter= query string of a few thousand nested parentheses (≈ 4–12 KB) drives the recursive-descent PEG parser past the worker thread's stack guard page. Rust responds to stack overflow with std::process::abort() — the entire kanidmd process exits. The parse runs inside axum's Query<ScimEntryGetQuery> extractor, before any handler body and therefore before any ACL check. This issue has been patched in version 1.9.3.

CVSS

No CVSS.

References

Link	Resource
https://github.com/kanidm/kanidm/releases/tag/v1.9.3
https://github.com/kanidm/kanidm/security/advisories/GHSA-r5fr-9gmv-jggh
https://github.com/kanidm/kanidm/security/advisories/GHSA-r5fr-9gmv-jggh

Configurations

No configuration.

History

No history.

Information

Published : 2026-06-10 22:17

Updated : 2026-07-23 09:10

NVD link : CVE-2026-46689

Mitre link : CVE-2026-46689

CVE.ORG link : CVE-2026-46689

JSON object : View

Products Affected

No product.

CWE

CWE-248

Uncaught Exception

CWE-400

Uncontrolled Resource Consumption

CWE-674

Uncontrolled Recursion

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