CVE-2022-25236

xmlparse.c in Expat (aka libexpat) before 2.4.5 allows attackers to insert namespace-separator characters into namespace URIs.

• CWE-668
• CWE-668

• http://packetstormsecurity.com/files/167238/Zoom-XMPP-Stanza-Smuggling-Remote-Code-Execution.htmlThird Party Advisory, VDB Entry
• http://www.openwall.com/lists/oss-security/2022/02/19/1Mailing List, Third Party Advisory
• https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdfThird Party Advisory
• https://github.com/libexpat/libexpat/pull/561Patch, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2022/03/msg00007.htmlThird Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3UFRBA3UQVIQKXTBUQXDWQOVWNBKLERU/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y27XO3JMKAOMQZVPS3B4MJGEAHCZF5OM/
• https://security.gentoo.org/glsa/202209-24Third Party Advisory
• https://security.netapp.com/advisory/ntap-20220303-0008/Third Party Advisory
• https://www.debian.org/security/2022/dsa-5085Third Party Advisory
• https://www.oracle.com/security-alerts/cpuapr2022.htmlPatch, Third Party Advisory
• http://packetstormsecurity.com/files/167238/Zoom-XMPP-Stanza-Smuggling-Remote-Code-Execution.htmlThird Party Advisory, VDB Entry
• http://www.openwall.com/lists/oss-security/2022/02/19/1Mailing List, Third Party Advisory
• https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdfThird Party Advisory
• https://github.com/libexpat/libexpat/pull/561Patch, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2022/03/msg00007.htmlThird Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3UFRBA3UQVIQKXTBUQXDWQOVWNBKLERU/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y27XO3JMKAOMQZVPS3B4MJGEAHCZF5OM/
• https://security.gentoo.org/glsa/202209-24Third Party Advisory
• https://security.netapp.com/advisory/ntap-20220303-0008/Third Party Advisory
• https://www.debian.org/security/2022/dsa-5085Third Party Advisory
• https://www.oracle.com/security-alerts/cpuapr2022.htmlPatch, Third Party Advisory

Published

Feb 16, 2022

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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