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CVE-2026-93990

🗓️ 21 Sep 2026 00:00:00Reported by ubuntu.comType 
ubuntucve
 ubuntucve
🔗 ubuntu.com👁 2 Views

Expat through 2.8.4 fails to validate low surrogates following highsurrogates in UTF-16 input, allowing malformed UTF-16 sequences to beaccepted. Attackers can craft UTF-16 encoded XML with lone high surrogatesthat consume following code units, hi...

Related
Packages
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-93990
20 Sep 202600:01
circl
cve
CVE
CVE-2026-93990
19 Sep 202622:58
cve
cvelist
Cvelist
CVE-2026-93990 Expat through 2.8.4 Malformed UTF-16 Acceptance via Unchecked Surrogate
19 Sep 202622:58
cvelist
debiancve
Debian CVE
CVE-2026-93990
19 Sep 202622:58
debiancve
euvd
EUVD
EUVD-2026-83618
20 Sep 202600:30
euvd
nvd
NVD
CVE-2026-93990
19 Sep 202623:17
nvd
osv
OSV
AZL-103316 CVE-2026-93990 affecting package expat 2.8.3-2
19 Sep 202623:17
osv
osv
OSV
DEBIAN-CVE-2026-93990
19 Sep 202623:17
osv
osv
OSV
ECHO-41D9-8113-CE4D
20 Sep 202612:59
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osv
OSV
UBUNTU-CVE-2026-93990
21 Sep 202600:00
osv
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Ubuntu14.04allexpat0expat_0_all.deb
Ubuntu16.04allexpat0expat_0_all.deb
Ubuntu18.04allexpat0expat_0_all.deb
Ubuntu20.04allexpat0expat_0_all.deb
Ubuntu22.04allexpat0expat_0_all.deb
Ubuntu24.04allexpat0expat_0_all.deb
Ubuntu26.04allexpat0expat_0_all.deb
Ubuntu14.04allxmlrpc-c0xmlrpc-c_0_all.deb
Ubuntu16.04allxmlrpc-c0xmlrpc-c_0_all.deb
Ubuntu18.04allxmlrpc-c0xmlrpc-c_0_all.deb
Rows per page

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21 Sep 2026 20:05Current
CVSS 3.17.5
CVSS 48.7
EPSS0.00347
SSVC
2