What’s Vulnerable › Vulnerabilities

CVE-2022-24757: Sensitive Auth & Cookie data stored in Jupyter server logs

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-03-23 · updated 2026-06-17
• Weakness: CWE-532

Description

The Jupyter Server provides the backend (i.e. the core services, APIs, and REST endpoints) for Jupyter web applications. Prior to version 1.15.4, unauthorized actors can access sensitive information from server logs. Anytime a 5xx error is triggered, the auth cookie and other header values are recorded in Jupyter Server logs by default. Considering these logs do not require root access, an attacker can monitor these logs, steal sensitive auth/cookie information, and gain access to the Jupyter server. Jupyter Server version 1.15.4 contains a patch for this issue. There are currently no known workarounds.

Affected products

• jupyter-server jupyter_server: before 1.15.4 — fixed in 1.15.4

How to fix

Upgrade to a fixed version: jupyter-server jupyter_server 1.15.4. Check the vendor advisory for mitigations.

References

• https://github.com/jupyter-server/jupyter_server/commit/a5683aca0b0e412672ac6218d09f74d44ca0de5a
• https://github.com/jupyter-server/jupyter_server/security/advisories/GHSA-p737-p57g-4cpr
• https://github.com/jupyter-server/jupyter_server/commit/a5683aca0b0e412672ac6218d09f74d44ca0de5a
• https://github.com/jupyter-server/jupyter_server/security/advisories/GHSA-p737-p57g-4cpr

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