CVE-2026-46689
HIGH EPSS 23.4%
Published Jun 10, 20263w ago · Modified Jun 17, 20262w ago
8.7 CVSS 4.0
Published Jun 10, 2026 3w ago
Last Modified Jun 17, 2026 2w ago
Description
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 Details
Base Score
Exploitability
Impact
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
23.4% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 3
CWE-248
CWE-400 Uncontrolled Resource Consumption Resource Mgmt
CWE-674
References 2
- github.com https://github.com/kanidm/kanidm/releases/tag/v1.9.3
- github.com https://github.com/kanidm/kanidm/security/advisories/GHSA-r5fr-9gmv-jggh
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.