Description
Versions of the package net.sourceforge.plantuml:plantuml before 1.2026.0 are vulnerable to Stored XSS due to insufficient sanitization of interactive attributes in GraphViz diagrams. As a result, a crafted PlantUML diagram can inject malicious JavaScript into generated SVG output, leading to arbitrary script execution in the context of applications that render the SVG.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | net.sourceforge.plantuml:plantuml | < 1.2026.0 | 1.2026.0 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | plantuml | No fix yet | — |
| Debian 13 | plantuml | No fix yet | — |
| Debian 12 | plantuml | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | plantuml | No fix yet | — |
| Ubuntu 26.04 LTS | plantuml | No fix yet | — |
| Ubuntu 25.10 | plantuml | No fix yet | — |
| Ubuntu 24.04 LTS | plantuml | No fix yet | — |
| Ubuntu 22.04 LTS | plantuml | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | plantuml | No fix yet | — |
| Ubuntu Pro 18.04 LTS | plantuml | No fix yet | — |
| Ubuntu Pro 16.04 LTS | plantuml | No fix yet | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Maven | net.sourceforge.plantuml:plantuml | < 1.2026.0 | 1.2026.0 | GHSA-hrvf-g648-rf3m |