Medium severity5.3GHSA Advisory· Published May 29, 2026· Updated Jun 1, 2026
CVE-2026-41150
CVE-2026-41150
Description
Mermaid is a JavaScript tool that uses Markdown-inspired text to create and modify diagrams and charts. Prior to 10.9.6 and 11.15.0, there is a denial-of-service attack when rendering gantt charts, if they use the excludes attribute to exclude all dates. mermaid.parse is unaffected, unless you then call the ganttDb.getTasks() (which is called when rendering a diagram). This vulnerability is fixed in 10.9.6 and 11.15.0.
AI Insight
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
mermaidnpm | >= 11.0.0-alpha.1, < 11.15.0 | 11.15.0 |
mermaidnpm | < 10.9.6 | 10.9.6 |
Affected products
6- Range: <= 10.9.5
- osv-coords4 versionspkg:apk/chainguard/langfuse-2-workerpkg:apk/chainguard/langfuse-fips-2-workerpkg:apk/chainguard/librechatpkg:npm/mermaid
< 2.95.12-r23+ 3 more
- (no CPE)range: < 2.95.12-r23
- (no CPE)range: < 2.95.12-r25
- (no CPE)range: < 0.8.4-r7
- (no CPE)range: >= 11.0.0-alpha.1, < 11.15.0
Patches
Vulnerability mechanics
References
7- github.com/mermaid-js/mermaid/commit/a59ea56174712ee5430dfd5bc877cb5151f501a6nvdPatchWEB
- github.com/mermaid-js/mermaid/commit/faafb5d49106dd32c367f3882505f2dd625aa30envdPatchWEB
- github.com/advisories/GHSA-6m6c-36f7-fhxhghsaADVISORY
- github.com/mermaid-js/mermaid/security/advisories/GHSA-6m6c-36f7-fhxhnvdThird Party AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2026-41150ghsaADVISORY
- github.com/mermaid-js/mermaid/releases/tag/mermaid%4011.15.0nvdRelease NotesWEB
- github.com/mermaid-js/mermaid/releases/tag/v10.9.6nvdRelease NotesWEB
News mentions
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