CVE-2026-108260

Tina is a headless content management system. Prior to 0.2.1, the tina-markdown element in packages/@tinacms/web-components/src/tina-markdown.js assigns a rich-text node.url value directly to an anchor href without validating the URL scheme. A content author can store a link using a script-capable scheme, and a visitor who clicks the rendered link executes attacker-controlled script in the site's origin. The script can access same-origin application data and, when the visitor is an editor or administrator, may expose credentials stored by the TinaCMS admin on that origin. This issue is fixed in version 0.2.1.

• CWE-79
• CWE-83

• https://github.com/tinacms/tinacms/commit/5295e077f0d279c35686a0e481a15e33a4877e3b
• https://github.com/tinacms/tinacms/pull/7523
• https://github.com/tinacms/tinacms/releases/tag/@tinacms/web-components@0.2.1
• https://github.com/tinacms/tinacms/security/advisories/GHSA-c42q-qvc3-j6vg
• https://github.com/tinacms/tinacms/security/advisories/GHSA-c42q-qvc3-j6vg

Published

Oct 9, 2026

Last Modified

Oct 16, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-10822If BIND encounters a particular invalid data structure in a …6.5
• CVE-2026-10823The YMC Filter WordPress plugin before 3.11.3 does not prope…7.5
• CVE-2026-10824The Masteriyo LMS WordPress plugin before 2.2.1 does not pe…6.5
• CVE-2026-10825A denial-of-service vulnerability exists in the WebSocket AP…7.1
• CVE-2026-108258Shiny for Python is a framework for building interactive web…6.9
• CVE-2026-108259Tina is a headless content management system. Prior to 3.0.0…8.2
• CVE-2026-108261Tina is a headless content management system. Prior to tinac…9.3
• CVE-2026-108263Astron Agent is an agentic workflow platform for building an…9.9
• CVE-2026-108264Wizarr is an advanced user invitation and management system …9.1
• CVE-2026-108265Enclave OS Mini is a Rust-based runtime for confidential app…9.1
• CVE-2026-108266Privasys rustls is a maintained fork of the rustls TLS libra…9.1
• CVE-2026-108267Privasys Go is a maintained fork of the Go programming langu…9.1