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vuln-cve/data/2026/30xxx/CVE-2026-30975.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-30975",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-03-07T17:53:48.816Z",
"datePublished": "2026-03-25T21:08:15.426Z",
"dateUpdated": "2026-03-26T15:23:38.612Z"
},
"containers": {
"cna": {
"title": "Sonarr Authentication Bypass vulnerability",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-290",
"lang": "en",
"description": "CWE-290: Authentication Bypass by Spoofing",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
"version": "3.1"
}
}
],
"references": [
{
"name": "https://github.com/Sonarr/Sonarr/security/advisories/GHSA-h5qx-5hjf-7c9r",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/Sonarr/Sonarr/security/advisories/GHSA-h5qx-5hjf-7c9r"
},
{
"name": "https://github.com/Sonarr/Sonarr/releases/tag/v4.0.16.2942",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/Sonarr/Sonarr/releases/tag/v4.0.16.2942"
},
{
"name": "https://github.com/Sonarr/Sonarr/releases/tag/v4.0.16.2944",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/Sonarr/Sonarr/releases/tag/v4.0.16.2944"
}
],
"affected": [
{
"vendor": "Sonarr",
"product": "Sonarr",
"versions": [
{
"version": "< 4.0.16.2942",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-03-25T21:08:15.426Z"
},
"descriptions": [
{
"lang": "en",
"value": "Sonarr is a PVR for Usenet and BitTorrent users. Versions prior to 4.0.16.2942 have an authentication bypass that affected users that had disabled authentication for local addresses (Authentication Required set to: `Disabled for Local Addresses`) without a reverse proxy running in front of Sonarr that didn't not pass through the invalid header. Patches are available in version 4.0.16.2942 in the nightly/develop branch and version 4.0.16.2944 for stable/main releases. Some workarounds are available. Make sure Sonarr's Authentication Required setting is set to `Enabled`, run Sonarr behind a reverse proxy, and/or do not expose Sonarr directly to the internet and instead rely on accessing it through a VPN, Tailscale or a similar solution."
}
],
"source": {
"advisory": "GHSA-h5qx-5hjf-7c9r",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-03-26T15:23:30.487188Z",
"id": "CVE-2026-30975",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-03-26T15:23:38.612Z"
}
}
]
}
}