Dashboard / CVE-2026-121821

CVE-2026-121821

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 61/100
Published: 2026-11-06 Modified: 2026-11-10 First seen: 2026-11-06 Status: active

Attack Surface

Network Low Complexity No Auth

CVSS Vector Breakdown

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

Description

A vulnerability has been identified in armeria versions 0.84.0 through 1.42.0, where any-origin CORS policies do not enforce configured path restrictions, allowing an attacker-controlled website visited by an authenticated victim to read sensitive responses from excluded paths when credentials are enabled and the victim's browser sends authentication credentials.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
LY Corporation Armeria 0.84.0 < 1.43.0
LY Corporation Armeria 0.84.0 < 1.43.0

References & Advisories (2)

Bug Bounty Relevance

61 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

5.3 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/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

0.32%
Raw Score 0.003240
Percentile 25.9%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00324
2026-11-12
0.00324
2026-11-10
0.00324
2026-11-09
0.00324
2026-11-08
0.00324
2026-11-07
0.00324
2026-11-06
0.00324

Intelligence Sources

mitre ref →
nvd ref →

External Links