PYSEC-2026-2534
Vulnerability from pysec - Published: 2026-07-13 14:20 - Updated: 2026-07-13 16:04
VLAI
Details
Impact
Users of JupyterLab who click on a malicious link may get their Authorization and XSRFToken tokens exposed to a third party when running an older jupyter-server version.
Patches
JupyterLab 4.1.0b2, 4.0.11, and 3.6.7 were patched.
Workarounds
No workaround has been identified, however users should ensure to upgrade jupyter-server to version 2.7.2 or newer which includes a redirect vulnerability fix.
References
Vulnerability reported by user @davwwwx via the bug bounty program sponsored by the European Commission and hosted on the Intigriti platform.
Severity
7.6 (High)
Impacted products
| Name | purl | jupyterlab | pkg:pypi/jupyterlab |
|---|
Aliases
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "jupyterlab",
"purl": "pkg:pypi/jupyterlab"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.6.7"
},
{
"introduced": "4.0.0"
},
{
"fixed": "4.0.11"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.0.1",
"0.0.10",
"0.0.13",
"0.0.2",
"0.0.3",
"0.0.4",
"0.0.5",
"0.0.6",
"0.0.7",
"0.0.8",
"0.0.9",
"0.1.1",
"0.1.2",
"0.10.0",
"0.11.0",
"0.11.1",
"0.11.2",
"0.11.3",
"0.12.0",
"0.12.1",
"0.13.0",
"0.13.1",
"0.13.2",
"0.14.0",
"0.15.0",
"0.15.1",
"0.16.0",
"0.16.2",
"0.17.0",
"0.17.1",
"0.17.2",
"0.17.4",
"0.17.5",
"0.18.0",
"0.18.0.dev1",
"0.18.1",
"0.19.0",
"0.2.0",
"0.20.0",
"0.20.0rc1",
"0.20.1",
"0.20.2",
"0.20.3",
"0.20.4",
"0.21.0",
"0.21.0rc1",
"0.21.0rc2",
"0.21.0rc3",
"0.21.0rc4",
"0.21.0rc5",
"0.22.0",
"0.22.0rc0",
"0.22.1",
"0.23.0",
"0.23.0rc0",
"0.23.0rc1",
"0.23.1",
"0.23.2",
"0.24.0",
"0.24.0rc0",
"0.24.0rc1",
"0.24.0rc2",
"0.24.1",
"0.25.0",
"0.25.0rc0",
"0.25.0rc1",
"0.25.1",
"0.25.2",
"0.25.2rc0",
"0.26.0",
"0.26.0rc0",
"0.26.0rc1",
"0.26.1",
"0.26.2",
"0.26.3",
"0.26.4",
"0.26.5",
"0.27.0",
"0.27.0rc0",
"0.27.0rc1",
"0.27.0rc2",
"0.27.0rc3",
"0.27.0rc4",
"0.27.0rc5",
"0.27.1",
"0.27.2",
"0.28.0",
"0.28.0rc0",
"0.28.0rc1",
"0.28.0rc2",
"0.28.0rc3",
"0.28.1",
"0.28.10",
"0.28.11",
"0.28.12",
"0.28.13",
"0.28.14",
"0.28.15",
"0.28.2",
"0.28.3",
"0.28.4",
"0.28.5",
"0.28.6",
"0.28.7",
"0.28.8",
"0.29.0",
"0.29.0rc0",
"0.29.1",
"0.29.2",
"0.3.0",
"0.30.0",
"0.30.0rc0",
"0.30.0rc1",
"0.30.1",
"0.30.2",
"0.30.3",
"0.30.4",
"0.30.5",
"0.30.6",
"0.31.0",
"0.31.0rc0",
"0.31.0rc1",
"0.31.0rc2",
"0.31.1",
"0.31.10",
"0.31.11",
"0.31.12",
"0.31.2",
"0.31.3",
"0.31.4",
"0.31.5",
"0.31.6",
"0.31.7",
"0.31.8",
"0.31.9",
"0.32.0",
"0.32.0rc0",
"0.32.0rc1",
"0.32.1",
"0.33.0",
"0.33.0rc0",
"0.33.0rc1",
"0.33.1",
"0.33.10",
"0.33.11",
"0.33.12",
"0.33.2",
"0.33.3",
"0.33.4",
"0.33.5",
"0.33.6",
"0.33.7",
"0.33.8",
"0.33.9",
"0.34.0",
"0.34.0rc0",
"0.34.0rc1",
"0.34.0rc2",
"0.34.1",
"0.34.10",
"0.34.11",
"0.34.12",
"0.34.2",
"0.34.3",
"0.34.4",
"0.34.5",
"0.34.6",
"0.34.7",
"0.34.8",
"0.34.9",
"0.35.0",
"0.35.0rc0",
"0.35.0rc1",
"0.35.0rc2",
"0.35.1",
"0.35.2",
"0.35.3",
"0.35.4",
"0.35.5",
"0.35.6",
"0.4.0",
"0.4.1",
"0.5.0",
"0.6.0",
"0.7.0",
"0.8.0",
"0.9.0",
"0.9.1",
"1.0.0",
"1.0.0a0",
"1.0.0a1",
"1.0.0a10",
"1.0.0a2",
"1.0.0a3",
"1.0.0a4",
"1.0.0a5",
"1.0.0a6",
"1.0.0a7",
"1.0.0a8",
"1.0.0a9",
"1.0.0rc0",
"1.0.0rc1",
"1.0.1",
"1.0.10",
"1.0.2",
"1.0.3",
"1.0.4",
"1.0.5",
"1.0.6",
"1.0.7",
"1.0.9",
"1.1.0",
"1.1.0a0",
"1.1.0a1",
"1.1.0a2",
"1.1.0rc0",
"1.1.1",
"1.1.2",
"1.1.3",
"1.1.4",
"1.1.5",
"1.2.0",
"1.2.0a0",
"1.2.0a1",
"1.2.0a2",
"1.2.0a3",
"1.2.0rc0",
"1.2.1",
"1.2.10",
"1.2.11",
"1.2.12",
"1.2.13",
"1.2.14",
"1.2.15",
"1.2.16",
"1.2.17",
"1.2.18",
"1.2.19",
"1.2.2",
"1.2.20",
"1.2.21",
"1.2.3",
"1.2.4",
"1.2.5",
"1.2.6",
"1.2.7",
"1.2.8",
"1.2.9",
"2.0.0",
"2.0.0a0",
"2.0.0a1",
"2.0.0a3",
"2.0.0a4",
"2.0.0b1",
"2.0.0b2",
"2.0.0b3",
"2.0.0rc0",
"2.0.0rc1",
"2.0.0rc2",
"2.0.1",
"2.0.1rc0",
"2.0.2",
"2.1.0",
"2.1.0a0",
"2.1.0b0",
"2.1.0rc0",
"2.1.1",
"2.1.2",
"2.1.3",
"2.1.4",
"2.1.5",
"2.2.0",
"2.2.0a0",
"2.2.0a1",
"2.2.0rc1",
"2.2.1",
"2.2.10",
"2.2.2",
"2.2.4",
"2.2.5",
"2.2.6",
"2.2.7",
"2.2.8",
"2.2.9",
"2.3.0",
"2.3.0a0",
"2.3.0a1",
"2.3.0a2",
"2.3.0rc0",
"2.3.1",
"2.3.2",
"3.0.0",
"3.0.0a0",
"3.0.0a10",
"3.0.0a11",
"3.0.0a12",
"3.0.0a13",
"3.0.0a14",
"3.0.0a3",
"3.0.0a4",
"3.0.0a5",
"3.0.0a6",
"3.0.0a7",
"3.0.0a8",
"3.0.0a9",
"3.0.0b1",
"3.0.0b2",
"3.0.0b3",
"3.0.0b4",
"3.0.0b6",
"3.0.0b7",
"3.0.0b8",
"3.0.0rc0",
"3.0.0rc1",
"3.0.0rc10",
"3.0.0rc11",
"3.0.0rc12",
"3.0.0rc13",
"3.0.0rc14",
"3.0.0rc15",
"3.0.0rc2",
"3.0.0rc3",
"3.0.0rc4",
"3.0.0rc5",
"3.0.0rc6",
"3.0.0rc7",
"3.0.0rc8",
"3.0.0rc9",
"3.0.1",
"3.0.10",
"3.0.11",
"3.0.12",
"3.0.13",
"3.0.14",
"3.0.15",
"3.0.16",
"3.0.17",
"3.0.18",
"3.0.2",
"3.0.3",
"3.0.4",
"3.0.5",
"3.0.6",
"3.0.7",
"3.0.8",
"3.0.9",
"3.1.0",
"3.1.0a0",
"3.1.0a1",
"3.1.0a10",
"3.1.0a11",
"3.1.0a12",
"3.1.0a13",
"3.1.0a2",
"3.1.0a3",
"3.1.0a4",
"3.1.0a5",
"3.1.0a6",
"3.1.0a7",
"3.1.0a8",
"3.1.0a9",
"3.1.0b0",
"3.1.0b1",
"3.1.0rc1",
"3.1.0rc2",
"3.1.1",
"3.1.10",
"3.1.11",
"3.1.12",
"3.1.13",
"3.1.14",
"3.1.16",
"3.1.17",
"3.1.18",
"3.1.19",
"3.1.2",
"3.1.4",
"3.1.6",
"3.1.7",
"3.1.8",
"3.1.9",
"3.2.0",
"3.2.0a0",
"3.2.0a1",
"3.2.0b0",
"3.2.0rc0",
"3.2.1",
"3.2.2",
"3.2.3",
"3.2.4",
"3.2.5",
"3.2.6",
"3.2.7",
"3.2.8",
"3.2.9",
"3.3.0",
"3.3.0a1",
"3.3.0a2",
"3.3.0a3",
"3.3.0b0",
"3.3.0rc0",
"3.3.1",
"3.3.2",
"3.3.3",
"3.3.4",
"3.4.0",
"3.4.0a0",
"3.4.0b0",
"3.4.0rc0",
"3.4.1",
"3.4.2",
"3.4.3",
"3.4.4",
"3.4.5",
"3.4.6",
"3.4.7",
"3.4.8",
"3.5.0",
"3.5.0a0",
"3.5.0b0",
"3.5.0rc0",
"3.5.1",
"3.5.2",
"3.5.3",
"3.6.0",
"3.6.0a0",
"3.6.0a1",
"3.6.0a2",
"3.6.0a3",
"3.6.0a4",
"3.6.0a5",
"3.6.0b0",
"3.6.0rc0",
"3.6.0rc1",
"3.6.1",
"3.6.2",
"3.6.3",
"3.6.4",
"3.6.5",
"3.6.6",
"4.0.0",
"4.0.1",
"4.0.10",
"4.0.2",
"4.0.3",
"4.0.4",
"4.0.5",
"4.0.6",
"4.0.7",
"4.0.8",
"4.0.9"
]
}
],
"aliases": [
"CVE-2024-22421",
"GHSA-44cc-43rp-5947"
],
"details": "### Impact\nUsers of JupyterLab who click on a malicious link may get their `Authorization` and `XSRFToken` tokens exposed to a third party when running an older `jupyter-server` version.\n\n### Patches\nJupyterLab 4.1.0b2, 4.0.11, and 3.6.7 were patched.\n\n### Workarounds\nNo workaround has been identified, however users should ensure to upgrade `jupyter-server` to version 2.7.2 or newer which includes a redirect vulnerability fix.\n\n### References\n\nVulnerability reported by user @davwwwx via the [bug bounty program](https://app.intigriti.com/programs/jupyter/jupyter/detail) [sponsored by the European Commission](https://commission.europa.eu/news/european-commissions-open-source-programme-office-starts-bug-bounties-2022-01-19_en) and hosted on the [Intigriti platform](https://www.intigriti.com/).\n",
"id": "PYSEC-2026-2534",
"modified": "2026-07-13T16:04:23.520508Z",
"published": "2026-07-13T14:20:02.685378Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/jupyterlab/jupyterlab/security/advisories/GHSA-44cc-43rp-5947"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-22421"
},
{
"type": "WEB",
"url": "https://github.com/jupyterlab/jupyterlab/commit/19bd9b96cb2e77170a67e43121637d0b5619e8c6"
},
{
"type": "WEB",
"url": "https://github.com/jupyterlab/jupyterlab/commit/1ef7a4fa0202ebdf663e1cc0b45c8813a34a0b96"
},
{
"type": "WEB",
"url": "https://github.com/jupyterlab/jupyterlab/commit/fccd83dc4441da0384ee3fd1322c3b2d9ad4caaa"
},
{
"type": "PACKAGE",
"url": "https://github.com/jupyterlab/jupyterlab"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UQJKNRDRFMKGVRIYNNN6CKMNJDNYWO2H"
},
{
"type": "PACKAGE",
"url": "https://pypi.org/project/jupyterlab"
},
{
"type": "ADVISORY",
"url": "https://github.com/advisories/GHSA-44cc-43rp-5947"
}
],
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:L",
"type": "CVSS_V3"
}
],
"summary": "JupyterLab vulnerable to potential authentication and CSRF tokens leak"
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…