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Negotiate ambient user conn reuse

🗓️ 02 Sep 2026 08:00:00Reported by curlType 
curl
 curl
🔗 curl.se👁 18 Views

libcurl reuses Negotiate auth connection from empty-credential request, causing cross-user leakage.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
alpinelinux
AlpineLinux
CVE-2026-19931
6 Sep 202617:47
alpinelinux
cgr
Chainguard
CVE-2026-19931 vulnerabilities
15 Sep 202602:54
cgr
circl
Circl
CVE-2026-19931
2 Sep 202612:35
circl
nessus
Tenable Nessus
Curl 7.64.1 < 8.22.0 Negotiate Ambient User Connection Reuse
3 Sep 202600:00
nessus
nessus
Tenable Nessus
libcurl 7.64.1 < 8.22.0 Negotiate Ambient User Connection Reuse
3 Sep 202600:00
nessus
nessus
Tenable Nessus
Linux Distros Unpatched Vulnerability : CVE-2026-19931
2 Sep 202600:00
nessus
cve
CVE
CVE-2026-19931
6 Sep 202617:47
cve
cvelist
Cvelist
CVE-2026-19931 Negotiate ambient user conn reuse
6 Sep 202617:47
cvelist
debiancve
Debian CVE
CVE-2026-19931
6 Sep 202617:47
debiancve
euvd
EUVD
EUVD-2026-72166
6 Sep 202617:47
euvd
Rows per page
Vulners
Node
OR
haxxcurlRange7.64.18.14.2
haxxlibcurlRange7.64.18.14.2
haxxcurlRange8.15.08.16.1
haxxlibcurlRange8.15.08.16.1
haxxcurlRange8.17.08.20.1
haxxlibcurlRange8.17.08.20.1
haxxcurlRange8.21.08.22.0
haxxlibcurlRange8.21.08.22.0

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07 Sep 2026 10:34Current
5.9Medium risk
Vulners AI Score5.9
EPSS0.01162
SSVC
18