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CVE-2026-86049: Insertion of Sensitive Information into Log File

🗓️ 17 Sep 2026 00:00:00Reported by Rapid7Type 
rapid7
 rapid7
🔗 www.rapid7.com👁 4 Views

Jupyter Server prior to 2.21.0 leaks tokens in logs via unscrubbed Referer headers.

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Refs
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cgr
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CVE-2026-86049 vulnerabilities
19 Sep 202608:54
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circl
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CVE-2026-86049
17 Sep 202622:35
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cve
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CVE-2026-86049
17 Sep 202620:28
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cvelist
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CVE-2026-86049 Jupyter Server: 5xx request logging leaks token-bearing Referer header values
17 Sep 202620:28
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debiancve
Debian CVE
CVE-2026-86049
17 Sep 202620:28
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euvd
EUVD
EUVD-2026-82436
17 Sep 202620:28
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github
Github Security Blog
Jupyter Server: 5xx request logging leaks token-bearing Referer header values
17 Sep 202620:28
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mend
Mend
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17 Sep 202620:28
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nvd
NVD
CVE-2026-86049
17 Sep 202621:17
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osv
OSV
CGA-C88H-Q325-2J7H
18 Sep 202613:48
–osv
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24 Sep 2026 00:00Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.17.1
EPSS0.00416
SSVC
4