Critical severity · published Sep 30, 2026
CVE-2026-62308
Tugtainer: Authenticated SSRF via arbitrary notification URLs in test_notification endpoint
9.1
CVSS
0.3%
EPSS
No
On KEV
Description
Tugtainer is a self-hosted app for automating updates of Docker containers. Prior to version 1.30.6, Tugtainer allows an authenticated user to make the backend server send outbound HTTP requests to arbitrary user-supplied URLs through the notification test endpoint. The /settings/test_notification endpoint accepts a urls field and passes it directly to Apprise without restricting protocols, hostnames, localhost addresses, private IP ranges, or cloud metadata addresses. This can be abused as an authenticated blind server-side request forgery (SSRF). This issue has been patched in version 1.30.6.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
Low
Availability
Low
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 28% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TU
tugtainer · Quenary
< 1.30.6 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-62308
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-62308
x_refsource_CONFIRM
https://github.com/Quenary/tugtainer/security/advisories/GHSA-c2h5-ppv9-7vrq
x_refsource_MISC
https://github.com/Quenary/tugtainer/commit/c0294d0ab64985b135d0c5b566ac30bf8371f9c3
x_refsource_MISC
https://github.com/Quenary/tugtainer/releases/tag/v1.30.6
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