CVE-2026-123207

LOW
INFO Priority: 0.01 BB Relevance: 55/100
Published: 2026-11-05 Modified: 2026-11-12 First seen: 2026-11-05 Status: active

Attack Surface

Network Low Complexity No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: None
S: X
AT: Present
VC: None
VI: None
VA: None

Description

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.

Affected Software (2)

VendorProductVersion
LibreSpark LibreTV 0 < v2.21.2
LibreSpark LibreTV 0 < v2.21.2

Bug Bounty Relevance

55 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

2.3 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.24%
Raw Score 0.002390
Percentile 15.1%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00239
2026-11-13
0.00239
2026-11-12
0.00239
2026-11-10
0.00239
2026-11-09
0.00239
2026-11-08
0.00239
2026-11-07
0.00239
2026-11-06
0.00239

Intelligence Sources

mitre ref →
nvd ref →