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CVE-2026-103399

🗓️ 02 Oct 2026 00:00:00Reported by ubuntu.comType 
ubuntucve
 ubuntucve
🔗 ubuntu.com👁 4 Views

Unauthenticated request smuggling in SoupServer via Expect: 100-continue.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-103399
30 Sep 202617:42
–cve
cvelist
Cvelist
CVE-2026-103399 Libsoup: soupserver: http/1 request smuggling via undrained expect: 100-continue body
30 Sep 202617:42
–cvelist
debiancve
Debian CVE
CVE-2026-103399
30 Sep 202617:42
–debiancve
euvd
EUVD
EUVD-2026-90226
30 Sep 202617:42
–euvd
nvd
NVD
CVE-2026-103399
30 Sep 202618:18
–nvd
osv
OSV
DEBIAN-CVE-2026-103399
30 Sep 202618:18
–osv
osv
OSV
ECHO-0353-A267-F75E
1 Oct 202608:44
–osv
osv
OSV
UBUNTU-CVE-2026-103399
2 Oct 202600:00
–osv
ptsecurity
Positive Technologies
PT-2026-103492
30 Sep 202600:00
–ptsecurity
rapid7
Rapid7 Vulnerability Database (full)
CVE-2026-103399: Inconsistent Interpretation of HTTP Requests
30 Sep 202600:00
–rapid7
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Ubuntu22.04alllibsoup2.40libsoup2.4_0_all.deb
Ubuntu24.04alllibsoup2.40libsoup2.4_0_all.deb
Ubuntu26.04alllibsoup2.40libsoup2.4_0_all.deb
Ubuntu16.04alllibsoup2.40libsoup2.4_0_all.deb
Ubuntu18.04alllibsoup2.40libsoup2.4_0_all.deb
Ubuntu20.04alllibsoup2.40libsoup2.4_0_all.deb
Ubuntu22.04alllibsoup30libsoup3_0_all.deb
Ubuntu24.04alllibsoup30libsoup3_0_all.deb
Ubuntu26.04alllibsoup30libsoup3_0_all.deb

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02 Oct 2026 17:27Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.15.3
EPSS0.00245
SSVC
4