CVE-2026-100350

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Source
https://cve.org/CVERecord?id=CVE-2026-100350
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-100350.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-100350
Aliases
Downstream
openSUSE (1)
RHSA (2)
UBUNTU (1)
Related
Published
2026-10-15T15:37:19Z
Modified
2026-10-18T17:27:08Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Summary
kin-openapi deepObject query decoding repeatedly compiles an invariant regular expression
Details

kin-openapi is a Go project for handling OpenAPI files. From 0.145.0 until 0.146.0, openapi3filter repeatedly calls regexp.MustCompile for the same parameter-name regular expression inside the per-query-key loop in urlValuesDecoder.DecodeObject used to decode a deepObject query parameter. An unauthenticated remote client can send an affected endpoint a request containing many unrelated query keys, causing ValidateRequest to perform work and allocations proportional to the attacker-controlled key count for every deepObject parameter. The expression itself is fixed and this is not regular expression denial of service; the resource consumption comes from loop-invariant recompilation. This issue is fixed in version 0.146.0.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-1050",
        "CWE-400",
        "CWE-770"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100350.json"
}
References

Affected packages

Git / github.com/getkin/kin-openapi

Affected ranges

Type
GIT
Repo
https://github.com/getkin/kin-openapi
Events
Introduced
88aa64c7cbd03ecadbb419c473bdcaa8b0124c6b
Fixed
335f4e6abe8ecb82856651f30ed955834d90e15c
Fixed
d090e36b2f1c42c898ba2a687a8f6e25f5ca727f
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "0.145.0"
                },
                {
                    "fixed": "0.146.0"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StringRangeExpression"
        },
        {
            "range": [
                {
                    "fixed": "d090e36b2f1c42c898ba2a687a8f6e25f5ca727f"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "original_tag": "v0.146.0",
            "range": [
                {
                    "fixed": "335f4e6abe8ecb82856651f30ed955834d90e15c"
                }
            ],
            "source": "REFERENCES_TAG"
        }
    ]
}

Affected versions

v0.*
v0.145.0

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-100350.json"