libexpat: denial of service via crafted XML input

A flaw was found in libexpat. When processing a specially crafted XML input containing a specific pattern of attributes, the parsing time increases quadratically due to checks for attribute name collisions. This consumes excessive CPU resources and eventually results in a denial of service...

OESA-2026-2500 expat security update

expat is a stream-oriented XML parser library written in C. expat excels with files too large to fit RAM, and where performance and flexibility are crucial. Security Fixes: In libexpat before 2.8.1, the computational complexity of attribute name collision checks allows a denial of service via...

SUSE CVE-2026-48848

Roundcube Webmail 1.6.x before 1.6.16 and 1.7.x before 1.7 has insufficient HTML sanitization that could lead to Cascading Style Sheets CSS injection via an SVG document that has an animate element with the attributeName attribute...

DEBIAN-CVE-2026-48848

Roundcube Webmail 1.6.x before 1.6.16 and 1.7.x before 1.7 has insufficient HTML sanitization that could lead to Cascading Style Sheets CSS injection via an SVG document that has an animate element with the attributeName attribute...

CVE-2026-48848

Roundcube Webmail 1.6.x before 1.6.16 and 1.7.x before 1.7 has insufficient HTML sanitization that could lead to Cascading Style Sheets CSS injection via an SVG document that has an animate element with the attributeName attribute...

EUVD-2026-31727

Roundcube Webmail 1.6.x before 1.6.16 and 1.7.x before 1.7 has insufficient HTML sanitization that could lead to Cascading Style Sheets CSS injection via an SVG document that has an animate element with the attributeName attribute...

CVE-2026-48848

Roundcube Webmail 1.6.x before 1.6.16 and 1.7.x before 1.7 has insufficient HTML sanitization that could lead to Cascading Style Sheets CSS injection via an SVG document that has an animate element with the attributeName attribute...

OESA-2026-2432 expat security update

expat is a stream-oriented XML parser library written in C. expat excels with files too large to fit RAM, and where performance and flexibility are crucial. Security Fixes: In libexpat before 2.8.1, the computational complexity of attribute name collision checks allows a denial of service via...

OESA-2026-2431 expat security update

expat is a stream-oriented XML parser library written in C. expat excels with files too large to fit RAM, and where performance and flexibility are crucial. Security Fixes: In libexpat before 2.8.1, the computational complexity of attribute name collision checks allows a denial of service via...

OESA-2026-2430 expat security update

expat is a stream-oriented XML parser library written in C. expat excels with files too large to fit RAM, and where performance and flexibility are crucial. Security Fixes: In libexpat before 2.8.1, the computational complexity of attribute name collision checks allows a denial of service via...

CLSA-2026-1779359157 Fix CVE(s): CVE-2026-45186

SECURITY UPDATE: Denial of service via quadratic attribute-name collision check in libexpat before 2.8.1 - debian/patches/CVE-2026-45186.patch: introduce per-element defaultAttsNames hash table and use it for O1 attribute collision detection in defineAttribute - CVE-2026-45186...

CLSA-2026-1779184141 expat: Fix of CVE-2026-45186

CVE-2026-45186: fix quadratic complexity in attribute name collision check...

CLSA-2026-1779183996 expat: Fix of CVE-2026-45186

CVE-2026-45186: fix quadratic complexity in attribute name collision check...

CLSA-2026-1779183767 expat: Fix of CVE-2026-45186

CVE-2026-45186: fix quadratic complexity in attribute name collision check...

CLSA-2026-1779183482 Fix CVE(s): CVE-2026-45186

SECURITY UPDATE: denial of service via On^2 attribute name collision check with moderately sized crafted XML input - debian/patches/CVE-2026-45186.patch: replace linear scan in defineAttribute with O1 hash table lookup using new ELEMENTTYPE.defaultAttsNames field in expat/lib/xmlparse.c -...

CLSA-2026-1779130424 expat: Fix of CVE-2026-45186

CVE-2026-45186: fix quadratic complexity in attribute name collision check...

CLSA-2026-1779129362 Fix CVE(s): CVE-2026-45186

SECURITY UPDATE: fix quadratic complexity in attribute name collision check - debian/patches/CVE-2026-45186.patch: fix quadratic complexity in attribute name collision check - CVE-2026-45186...

CLSA-2026-1779129222 Fix CVE(s): CVE-2026-45186

SECURITY UPDATE: fix quadratic complexity in attribute name collision check - debian/patches/CVE-2026-45186.patch: fix quadratic complexity in attribute name collision check - CVE-2026-45186...

EUVD-2026-28985

In libexpat before 2.8.1, the computational complexity of attribute name collision checks allows a denial of service via moderately sized crafted XML input...

Inefficient Algorithmic Complexity

Overview Affected versions of this package are vulnerable to Inefficient Algorithmic Complexity due to the computational complexity of attribute name collision checks in XML parsing. An attacker can cause excessive resource consumption by providing specially crafted XML input. Remediation Upgrade...