CVE-2026-45822

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Source
https://cve.org/CVERecord?id=CVE-2026-45822
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45822.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-45822
Downstream
Published
2026-06-30T08:05:36.399Z
Modified
2026-08-07T11:31:22.088097716Z
Severity
  • 6.6 (Medium) 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/E:U/S:N/AU:Y/R:U/V:D/RE:M/U:Amber CVSS Calculator
Summary
[none]
Details

decode-uri-component through 0.4.1 is vulnerable to denial of service. The decode() function splits input on '%' producing N tokens and calls decodeComponents(), exhibiting super-linear parsing time: 200 '%ab' tokens takes approximately 0.7s, 700 tokens approximately 6s, and 1400 tokens approximately 33s. An attacker can cause significant CPU consumption and event-loop blocking via crafted input.

Database specific 
{
    "cna_assigner": "seal",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45822.json",
    "cwe_ids": [
        "CWE-400",
        "CWE-407"
    ]
}
References

Affected packages

Git / github.com/samverschueren/decode-uri-component

Affected ranges

Type
GIT
Repo
https://github.com/samverschueren/decode-uri-component
Events
Introduced
43d5a895a5dbcac13faf19d3235a155635f5feda
Fixed
a12fabaa28303cc8b5b07e93d128f4fc09fc31e5
Database specific 
{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "0.1.0"
        },
        {
            "fixed": "0.5.0"
        }
    ]
}

Affected versions

v0.*
v0.1.0
v0.2.0
v0.2.1
v0.2.2
v0.3.0
v0.4.0
v0.4.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45822.json"