CVE-2024-39903: Solara is a pure Python, React-style framework for scaling Jupyter and web apps

Q: How do I fix CVE-2024-39903?

solara: upgrade to 1.35.1. Exact commands for each OS are on this page.

Q: Is CVE-2024-39903 being exploited?

CVE-2024-39903 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2024-39903 affect?

CVE-2024-39903 affects solara. Severity is high (CVSS 8.6). Solara is a pure Python, React-style framework for scaling Jupyter and web apps. A Local File Inclusion (LFI) vulnerability was identified in widgetti/solara, in version <1.35.1, which was fixed in version 1.35.1. This vulnerability arises

Q: How urgent is CVE-2024-39903?

Priority 57/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 8.6REMOTEUPGRADE

CVE-2024-39903 is a high-severity flaw (CVSS 8.6) affecting solara. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Solara is a pure Python, React-style framework for scaling Jupyter and web apps. A Local File Inclusion (LFI) vulnerability was identified in widgetti/solara, in version <1.35.1, which was fixed in version 1.35.1. This vulnerability arises from the application's failure to properly validate URI fragments for directory traversal sequences such as '../' when serving static files. An attacker can exploit this flaw by manipulating the fragment part o

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	8.6 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.9% (top 13%)
CISA exploited list	No
Weakness	CWE-22
Published	2024-07-12
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: widgetti

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-07-12 15:15 UTCPublished CVE record published
2026-06-17 07:42 UTCUpdated Record last modified

widgetti solara UPGRADE

Affected: < 1.35.1

Fixed in: 1.35.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy solara || rpm -q solara || solara --version

2. UPGRADE to 1.35.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade solara

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade solara

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Nuclei scan template: Solara <1.35.1 - Local File Inclusion

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-39903?

solara: upgrade to 1.35.1. Exact commands for each OS are on this page.

Is CVE-2024-39903 being exploited?

CVE-2024-39903 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-39903 affect?

CVE-2024-39903 affects solara. Severity is high (CVSS 8.6). Solara is a pure Python, React-style framework for scaling Jupyter and web apps. A Local File Inclusion (LFI) vulnerability was identified in widgetti/solara, in version <1.35.1, which was fixed in version 1.35.1. This vulnerability arises

How urgent is CVE-2024-39903?

Priority 57/100. High severity; Remotely exploitable, no login, no user action

Software pages

Python vulnerabilities · React vulnerabilities · Jupyter vulnerabilities

References

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