MEDIUMCVSS v4 5.3Vulnerability
CVE-2026-121821
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.
Properties
- Severity
- MEDIUM
- Nvd fetched at
- 2026-11-07T06:40:34.987550+00:00
- Epss score
- 0.00324
- Cvss score
- 5.3
- Cvss severity
- MEDIUM
- Retrieved at
- 2026-11-07T06:44:44+00:00
- Score
- 5.3
- Last source
- FIRST EPSS
- Cvss version
- 4.0
- Cve id
- CVE-2026-121821
- Cvss vector
- 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
- First seen by Signal
- 2026-11-06T10:16:10+00:00
- Name
- CVE-2026-121821
- Vector
- 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
- Published at
- 2026-11-06T08:17:20.577
- Last modified
- 2026-11-06T20:36:20.133
- Epss percentile
- 0.25619
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