MEDIUMCVSS v4 5.9Vulnerability
CVE-2026-121819
A vulnerability has been identified in armeria-xds versions 1.40.0 through 1.42.0, where DataSourcePolicy checks filename containment without resolving symbolic links, allowing a compromised or semi-trusted xDS control plane to cause the xDS client to read files outside configured allowed root directories when a symbolic link inside an allowed directory points outside it. In deployments using a credential injector, header-compatible text secrets may be exposed to an attacker-observable upstream.
Properties
- Severity
- MEDIUM
- Nvd fetched at
- 2026-11-07T06:40:34.987550+00:00
- Epss score
- 0.00325
- Cvss score
- 5.9
- Cvss severity
- MEDIUM
- Retrieved at
- 2026-11-07T06:44:44+00:00
- Score
- 5.9
- Last source
- FIRST EPSS
- Cvss version
- 4.0
- Cve id
- CVE-2026-121819
- Cvss vector
- CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/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-2026-121819
- Vector
- CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/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
- 2026-11-06T08:17:20.237
- Last modified
- 2026-11-06T20:36:20.133
- Epss percentile
- 0.25678
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