How severe is CVE-2026-46642?

CVE-2026-46642 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2026-46642 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-46642?

CVE-2026-46642 affects Diagrams Drawio. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-46642?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-46642 have an EU (EUVD) identifier?

Yes. CVE-2026-46642 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36077.

When was CVE-2026-46642 published?

CVE-2026-46642 was published on 2026-06-10 and last updated on 2026-06-17.

CVE-2026-46642

CVE-2026-46642 is a medium-severity vulnerability in Diagrams Drawio with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-36077
Weakness: CWE-79
Affected product: Diagrams Drawio
Published: 2026-06-10
Last modified: 2026-06-17

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 <img src=x onerror=...> 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.

Frequently asked questions

What is CVE-2026-46642?: 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 <img src=x onerror=...> 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.
How severe is CVE-2026-46642?: CVE-2026-46642 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-46642 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-46642?: CVE-2026-46642 affects Diagrams Drawio. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-46642?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-46642 have an EU (EUVD) identifier?: Yes. CVE-2026-46642 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36077.
When was CVE-2026-46642 published?: CVE-2026-46642 was published on 2026-06-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:diagrams:drawio:*:*:*:*:*:*:*:*

More vulnerabilities in Diagrams Drawio

CVE-2023-3975 — Critical (CVSS 9.8): OS Command Injection in GitHub repository jgraph/drawio prior to 21.5.0.
CVE-2023-3974 — Critical (CVSS 9.8): OS Command Injection in GitHub repository jgraph/drawio prior to 21.4.0.
CVE-2022-1575 — Critical (CVSS 9.6): Arbitrary Code Execution through Sanitizer Bypass in GitHub repository jgraph/drawio prior to 18.0.0. - Arbitrary…
CVE-2022-1727 — High (CVSS 8.8): Improper Input Validation in GitHub repository jgraph/drawio prior to 18.0.6.
CVE-2022-3133 — High (CVSS 7.8): OS Command Injection in GitHub repository jgraph/drawio prior to 20.3.0.
CVE-2023-3398 — High (CVSS 7.5): Denial of Service in GitHub repository jgraph/drawio prior to 18.1.3.

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