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Cross-site Scripting (XSS) Affecting anythingllm package, versions <1.16.2-r0

Severity

 Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.28% (19th percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-ANYTHINGLLM-20047494
  • published23 Sept 2026
  • disclosed10 Sept 2026
Report a new vulnerability Found a mistake?

Introduced: 10 Sep 2026

NewCVE-2026-88055  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

Upgrade Minimos:latest anythingllm to version 1.16.2-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream anythingllm package and not the anythingllm package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

AnythingLLM is an application that turns pieces of content into context that any LLM can use as references during chatting. In 1.16.1 and earlier, the manager role can store meta_page_title or meta_page_favicon through /api/admin/system-preferences, and MetaGenerator inserts those values into production homepage HTML without escaping attribute values or text content. The values pass unchanged through server/models/systemSettings.js and reach MetaGenerator.generate() in server/index.js. #assembleMeta() in server/utils/boot/MetaGenerator.js concatenates the stored values into HTML. When an administrator visits the homepage /, injected JavaScript can read the administrator JWT and use it to create API keys, access or modify workspace and chat data, delete users, and perform other administrator actions. server/endpoints/admin.js accepts the manager-controlled settings before server/models/systemSettings.js returns them unchanged. No fixed version is available as of this review.