CVE-2026-46689

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Source
https://cve.org/CVERecord?id=CVE-2026-46689
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46689.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-46689
Aliases
Published
2026-06-10T20:28:44.009Z
Modified
2026-07-08T08:23:02.178385586Z
Severity
  • 8.7 (High) CVSS_V4 - 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 CVSS Calculator
Summary
Kanidm: Unauthenticated process abort via SCIM filter stack exhaustion
Details

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.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46689.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-248",
        "CWE-400",
        "CWE-674"
    ]
}
References

Affected packages

Git / github.com/kanidm/kanidm

Affected ranges

Type
GIT
Repo
https://github.com/kanidm/kanidm
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
7d4108698caeb324bb27a9d83b081d5701760131
Database specific 
{
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.9.3"
        }
    ]
}

Affected versions

1.*
1.7.0-dev
Other
debs
latest
kanidm-v1.*
kanidm-v1.1.0-alpha.2
kanidm_client-v1.*
kanidm_client-v1.1.0-alpha.2
kanidm_proto-v1.*
kanidm_proto-v1.1.0-alpha.2
kanidm_tools-v1.*
kanidm_tools-v1.1.0-alpha.2
kanidm_unix_int-v1.*
kanidm_unix_int-v1.1.0-alpha.2
nss_kanidm-v1.*
nss_kanidm-v1.1.0-alpha.2
pam_kanidm-v1.*
pam_kanidm-v1.1.0-alpha.2
v1.*
v1.0.0rc1
v1.0.0rc10
v1.0.0rc11
v1.0.0rc2
v1.0.0rc3
v1.0.0rc7
v1.0.0rc8
v1.0.0rc9
v1.1.0-alpha
v1.1.0-alpha.10
v1.1.0-alpha.11
v1.1.0-alpha.12
v1.1.0-alpha.2
v1.1.0-alpha.3
v1.1.0-alpha.4
v1.1.0-alpha.5
v1.1.0-alpha.6
v1.1.0-alpha.7
v1.1.0-alpha.8
v1.1.0-alpha.9
v1.1.0-beta.13
v1.1.0-rc.15
v1.1.0-rc.15-dev
v1.1.0-rc.16
v1.1.0alpha
v1.3.0-dev
v1.4.0-dev
v1.5.0-dev
v1.6.0-dev
v1.7.0-dev
v1.8.0-dev
v1.9.0
v1.9.0-dev
v1.9.0-pre
v1.9.1
v1.9.2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46689.json"