A vulnerability has been identified in armeria versions 0.80.0 through 1.42.0, where attackers who control file names can cause stored cross-site scripting (XSS) when directory listing is enabled and a user views the listing.

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact Low

Subsequent System Integrity Impact Low

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
LY Corporation Armeria unaffected
Version Status Constraints
0.80.0 affected < 1.43.0

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Project Subscriptions

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/line/armeria/security/advisories/GHSA-x9vf-hjgg-cq25 cve-icon cve-icon
https://line.github.io/security-advisory-blog/CVE-2026-121822/ cve-icon cve-icon
History

Fri, 06 Nov 2026 09:45:00 +0000

Type Values Removed Values Added
Title Stored Cross‑Site Scripting via Directory Listing in Armeria
Weaknesses CWE-79

Fri, 06 Nov 2026 08:00:00 +0000

Type Values Removed Values Added
Description A vulnerability has been identified in armeria versions 0.80.0 through 1.42.0, where attackers who control file names can cause stored cross-site scripting (XSS) when directory listing is enabled and a user views the listing.
References
Metrics cvssV4_0

{'score': 2.4, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: LY-Corporation

Published:

Updated: 2026-11-06T07:46:53.527Z

Reserved: 2026-11-04T05:50:04.721Z

Link: CVE-2026-121822

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-06T08:17:20.717

Modified: 2026-11-06T08:17:20.717

Link: CVE-2026-121822

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-06T09:30:08Z

Weaknesses