Description
The nbconvert tool, jupyter nbconvert, converts Jupyter notebooks to various other formats via Jinja templates. In versions 6.5 through 7.17.0, when `HTMLExporter.embed_images=True`, nbconvert's markdown renderer allows arbitrary file read via path traversal in image references. A malicious notebook can exfiltrate sensitive files from the conversion host by embedding them as base64 data URIs in the output HTML. nbconvert 7.17.1 contains a fix. As a workaround, do not enable `HTMLExporter.embed_images`; it is not enabled by default.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| jupyter | nbconvert | >= 6.5, < 7.17.1 | — |
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 | nbconvert | 7.17.1-1 | — |
| Debian 13 | nbconvert | 7.16.6-1+deb13u1 | — |
| Debian 12 | nbconvert | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | nbconvert | No fix yet | — |
| Ubuntu 26.04 LTS | nbconvert | No fix yet | — |
| Ubuntu 25.10 | nbconvert | No fix yet | — |
| Ubuntu 24.04 LTS | nbconvert | No fix yet | — |
| Ubuntu 22.04 LTS | nbconvert | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | nbconvert | No fix yet | — |
| Ubuntu 18.04 LTS | nbconvert | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | python-nbconvert | 7.17.1-1.1 | openSUSE-SU-2026:10603-1 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | kubeflow-pipelines-visualization-server | 2.16.0-r5 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | nbconvert | >= 6.5.0, < 7.17.1 | 7.17.1 | GHSA-7jqv-fw35-gmx9 |
Advisories 1
- openSUSE-SU-2026:10603-1 jupyter-nbconvert-7.17.1-1.1 on GA media SUSE / openSUSE Security Updates · Apr 23, 2026