# CVE-2026-46642: draw.io: XSS via crafted cell label when opening a .drawio file > Attackers can execute arbitrary JavaScript in draw.io by tricking users into opening a crafted .drawio file, potentially compromising the application context. - **Severity:** Medium 6.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N`) - **Exploited in the wild:** Not known - **Login needed:** Not needed - **Attackable:** Over the internet - **Victim action needed:** A user has to click or open something - **Fix available:** No - **Published:** 10 Jun 2026 - **Updated:** 11 Jun 2026 - **Also known as:** GHSA-fqhg-287p-c6vf ## What is CVE-2026-46642? CVE-2026-46642 is a medium-severity cross-site scripting vulnerability in jgraph drawio, published on 10 Jun 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link. ### Official description draw.io is a configurable diagramming and whiteboarding application. Prior to version 29.7.12, a crafted .drawio file can execute arbitrary JavaScript in the editor's origin when the file is opened. The vulnerability is not in the label sanitizer (which works correctly on the rendering path) but in a feature-detection routine in the Text Format panel that reads the raw cell label and assigns it to a detached element's innerHTML without sanitization. Browsers fire onerror for failed image loads even on detached elements, so an payload in any cell label triggers script execution as soon as the cell is selected — which import does automatically. This issue has been patched in version 29.7.12. Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation) ## Which versions are affected by CVE-2026-46642? It affects 1 product. Products: Diagrams Drawio. ## How do I fix CVE-2026-46642? No fix has been published for CVE-2026-46642 yet. Limit exposure of the affected software until one is available. ## Is CVE-2026-46642 being exploited? It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-46642 exists. ## Other vulnerabilities in jgraph drawio - [CVE-2023-3973](https://insights.sbomify.com/CVE-2023-3973/): Cross-site Scripting (XSS) - Reflected in jgraph/drawio (critical 9.6) - [CVE-2023-3974](https://insights.sbomify.com/CVE-2023-3974/): OS Command Injection in jgraph/drawio (critical 9.6) - [CVE-2022-2014](https://insights.sbomify.com/CVE-2022-2014/): Code Injection in jgraph/drawio (critical 9.6) - [CVE-2022-1575](https://insights.sbomify.com/CVE-2022-1575/): Arbitrary Code Execution through Sanitizer Bypass in jgraph/drawio (critical 9.6) - [CVE-2023-3975](https://insights.sbomify.com/CVE-2023-3975/): OS Command Injection in jgraph/drawio (high 8.3) ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2026-46642 and fix it if it is affected. What it is: CVE-2026-46642 is a medium-severity cross-site scripting vulnerability in jgraph drawio, published on 10 Jun 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link. Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-46642 exists. Affected product: jgraph drawio. No package-level version data is available, so check the vendor advisory linked from the reference page. Task: 1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies. 2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it. 3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead. 4. Run the tests and summarise what changed and why. 5. If nothing in the project is affected, say so and change nothing. Reference: https://insights.sbomify.com/CVE-2026-46642/ (Markdown: https://insights.sbomify.com/CVE-2026-46642/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2026-46642 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-46642 - OSV: https://osv.dev/vulnerability/CVE-2026-46642 --- From sbomify Insights: https://insights.sbomify.com/CVE-2026-46642/ Summaries are generated and may contain mistakes; the official description above is the record.