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CVE-2026-40864

🗓️ 22 May 2026 21:16:00Reported by ubuntu.comType 
ubuntucve
 ubuntucve
🔗 ubuntu.com👁 9 Views

CVE-2026-40864: JupyterHub XSRF bypass on form endpoints via Sec-Fetch-Mode no-cors; can trigger spawn or share access; fixed in 5.4.5.

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Refs
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GithubExploit
Exploit for Cross-Site Request Forgery (CSRF) in Jupyter Jupyterhub
13 Jun 202607:11
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ATTACKERKB
CVE-2026-40864
22 May 202620:13
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Chainguard
CVE-2026-40864 vulnerabilities
29 May 202619:38
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Circl
CVE-2026-40864
13 Jun 202615:00
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CNNVD
JupyterHub 跨站请求伪造漏洞
22 May 202600:00
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CVE
CVE-2026-40864
22 May 202620:13
cve
Cvelist
CVE-2026-40864 JupyterHub: Cross-origin form POSTs bypass XSRF
22 May 202620:13
cvelist
Debian CVE
CVE-2026-40864
22 May 202620:13
debiancve
EUVD
EUVD-2026-31499
22 May 202620:13
euvd
Github Security Blog
JupyterHub has cross-origin form POSTs bypass XSRF (CWE-352)
5 May 202618:10
github
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Ubuntu22.04anyjupyterhub0jupyterhub_0_any.deb
Ubuntu24.04anyjupyterhub0jupyterhub_0_any.deb
Ubuntu25.10anyjupyterhub0jupyterhub_0_any.deb
Ubuntu26.04anyjupyterhub0jupyterhub_0_any.deb

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27 May 2026 19:15Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.14.3 - 5.4
EPSS0.00159
SSVC
9