Tautulli Vulnerable to Unauthenticated/Authenticated Remote Code Execution via Newsletter Custom Template Directory
Tautulli is a Python based monitoring and tracking tool for Plex Media Server. Versions prior to 2.17.1 are vulnerable to remote code execution via the newsletter custom template directory feature. On a fresh install before the setup wizard is completed, all management endpoints are completely unauthenticated. An attacker can create a newsletter agent, point the custom template directory to an attacker-controlled SMB share serving a malicious Mako template, and trigger execution via the newsletter render endpoint, all with zero credentials and no local access to the target system. On a completed install with credentials configured, the same chain is exploitable by any admin. Version 2.17.1 fixes the issue.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-41065
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 5 Nov 2026, 06:07 UTC · Revision 1
Source evidence
Tautulli Vulnerable to Unauthenticated/Authenticated Remote Code Execution via Newsletter Custom Template Directory
core-osv · Original sourcePublished 4 Jun 2026, 14:17 UTC
Tautulli is a Python based monitoring and tracking tool for Plex Media Server. Versions prior to 2.17.1 are vulnerable to remote code execution via the newsletter custom template directory feature. On a fresh install before the setup wizard is completed, all management endpoints are completely unauthenticated. An attacker can create a newsletter agent, point the custom template directory to an attacker-controlled SMB share serving a malicious Mako template, and trigger execution via the newsletter render endpoint, all with zero credentials and no local access to the target system. On a completed install with credentials configured, the same chain is exploitable by any admin. Version 2.17.1 fixes the issue.
osv:CVE-2026-41065
Complete source record
{
"id": "e5007ad9b06fdb9e8eb57e2ff606d4d8579c663e813b67e04e1bb36593958063",
"url": "https://osv.dev/vulnerability/CVE-2026-41065",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Tautulli Vulnerable to Unauthenticated/Authenticated Remote Code Execution via Newsletter Custom Template Directory",
"summary": "Tautulli is a Python based monitoring and tracking tool for Plex Media Server. Versions prior to 2.17.1 are vulnerable to remote code execution via the newsletter custom template directory feature. On a fresh install before the setup wizard is completed, all management endpoints are completely unauthenticated. An attacker can create a newsletter agent, point the custom template directory to an attacker-controlled SMB share serving a malicious Mako template, and trigger execution via the newsletter render endpoint, all with zero credentials and no local access to the target system. On a completed install with credentials configured, the same chain is exploitable by any admin. Version 2.17.1 fixes the issue.",
"evidence": "osv:CVE-2026-41065",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2026-41065",
"aliases": [
"CVE-2026-41065",
"GHSA-68qx-mcf5-3jcp"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/tautulli/tautulli",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "d7b8147944c745c9dd566ac7839ed21f941d6d1d"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "2.17.1"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
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}
],
"source": "REFERENCES_TAG",
"original_tag": "v2.17.1"
},
{
"range": [
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{
"fixed": "2.17.1"
}
],
"source": "DESCRIPTION"
}
]
}
}
],
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],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-41065.json"
}
}
],
"modified": "2026-10-28T02:30:43.225698074Z",
"provider": "osv",
"references": [
"https://github.com/Tautulli/Tautulli/releases/tag/v2.17.1",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41065.json",
"https://github.com/Tautulli/Tautulli/security/advisories/GHSA-68qx-mcf5-3jcp",
"https://nvd.nist.gov/vuln/detail/CVE-2026-41065"
],
"provider_metadata": {
"cwe_ids": [
"CWE-1336"
],
"cna_assigner": "GitHub_M",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41065.json"
}
},
"related_cves": [
{
"value": "CVE-2026-41065",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 510918,
"published_at": "2026-06-04T14:17:13.238+00:00"
}