Your RSA-2048 keys break in 2030. Find every one of them before attackers do.
🐍
🐍 PyPI
Not in CISA KEV
MEDIUM severity

GHSA-c7vm-f5p4-8fqh

MEDIUMFix: jupyter/notebook@3cec4bb

GHSA-c7vm-f5p4-8fqh is a medium-severity (CVSS 4.4) Open Redirect vulnerability in notebook. O3 Security confirms whether GHSA-c7vm-f5p4-8fqh is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

Open redirect in Jupyter Notebook

Also known asBIT-jupyter-base-notebook-2020-26215BIT-jupyter-notebook-2020-26215CVE-2020-26215PYSEC-2020-215
Published
Nov 18, 2020
Updated
Mar 13, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Mar 13, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected
🐍notebook

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.

Description

Impact

What kind of vulnerability is it? Who is impacted?

Open redirect vulnerability - a maliciously crafted link to a notebook server could redirect the browser to a different website.

All notebook servers are technically affected, however, these maliciously crafted links can only be reasonably made for known notebook server hosts. A link to your notebook server may appear safe, but ultimately redirect to a spoofed server on the public internet.

Patches

Has the problem been patched? What versions should users upgrade to?

Patched in notebook 6.1.5

References

OWASP page on open redirects

For more information

If you have any questions or comments about this advisory, or vulnerabilities to report, please email our security list [email protected].

Credit: zhuonan li of Alibaba Application Security Team

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPInotebookall versions6.1.5

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for notebook. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update notebook to 6.1.5 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-c7vm-f5p4-8fqh is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 pinpoints whether GHSA-c7vm-f5p4-8fqh is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-c7vm-f5p4-8fqh. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

### Impact _What kind of vulnerability is it? Who is impacted?_ Open redirect vulnerability - a maliciously crafted link to a notebook server could redirect the browser to a different website. All notebook servers are technically affected, however, these maliciously crafted links can only be reasonably made for known notebook server hosts. A link to your notebook server may *appear* safe, but ultimately redirect to a spoofed server on the public internet. ### Patches _Has the problem been patched? What versions should users upgrade to?_ Patched in notebook 6.1.5 ### References [OWASP p
O3 Security · Impact-Aware SCA

Is GHSA-c7vm-f5p4-8fqh in your dependencies?

O3 detects GHSA-c7vm-f5p4-8fqh across PyPI dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.