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1 vulnerability found for LibreTV by LibreSpark
CVE-2026-123207 (GCVE-0-2026-123207)
Vulnerability from cvelistv5 – Published: 2026-11-05 18:16 – Updated: 2026-11-09 22:31
VLAI
EPSS
VEX
Title
LibreTV before v2.21.2 SSRF Protection Bypass via DNS Rebinding
Summary
LibreTV before v2.21.2 contains a server-side request forgery vulnerability that allows authenticated users to bypass checkUpstreamAllowed() by exploiting unpinned DNS resolution in fetchWithSafeRedirects(). Attackers controlling authoritative DNS can return public addresses during validation and internal addresses at connection time via /api/source/test, /api/proxy, /api/search or /api/detail to reach loopback services, private hosts or cloud metadata endpoints.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-09 22:31 UTC
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
VulnCheck
CNA
References
6 references
| URL | Tags |
|---|---|
| https://github.com/LibreSpark/LibreTV/issues/941 | issue-tracking |
| https://github.com/LibreSpark/LibreTV/pull/960 | patchissue-tracking |
| https://github.com/LibreSpark/LibreTV/commit/cb42… | patch |
| https://github.com/LibreSpark/LibreTV/releases/ta… | release-notes |
| https://github.com/LibreSpark/LibreTV/blob/29cbeb… | technical-description |
| https://www.vulncheck.com/advisories/libretv-befo… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| LibreSpark | LibreTV |
Affected:
0 , < v2.21.2
(custom)
|
Date Public
2026-10-19 00:00
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