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CVE-2026-15806 `HTTPPasswordMgr` can send saved HTTPS credentials via HTTP because of incorrect scheme matching

🗓️ 18 Aug 2026 15:50:57Reported by PSFType 
cvelist
 cvelist
🔗 www.cve.org👁 176 Views

HTTPPasswordMgr in Python urllib.request sends HTTPS credentials over HTTP due to missing scheme check.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-15806
18 Aug 202615:50
–attackerkb
cgr
Chainguard
CVE-2026-15806 vulnerabilities
2 Sep 202620:27
–cgr
circl
Circl
CVE-2026-15806
18 Aug 202616:45
–circl
cve
CVE
CVE-2026-15806
18 Aug 202615:50
–cve
debiancve
Debian CVE
CVE-2026-15806
18 Aug 202615:50
–debiancve
euvd
EUVD
EUVD-2026-61013
18 Aug 202615:50
–euvd
mscve
Microsoft CVE
`HTTPPasswordMgr` can send saved HTTPS credentials via HTTP because of incorrect scheme matching
21 Aug 202621:02
–mscve
nvd
NVD
CVE-2026-15806
18 Aug 202616:17
–nvd
opensuse
OPENSUSE Linux
python315-3.15.0~rc2-1.1 on GA media (moderate)
13 Sep 202600:00
–opensuse
osv
OSV
AZL-96867 CVE-2026-15806 affecting package python3 3.12.14-1
18 Aug 202616:17
–osv
Rows per page
[
  {
    "defaultStatus": "unaffected",
    "product": "CPython",
    "repo": "https://github.com/python/cpython",
    "vendor": "Python Software Foundation",
    "versions": [
      {
        "version": "0",
        "lessThan": "3.15.0rc2",
        "status": "affected",
        "versionType": "python"
      }
    ]
  }
]

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