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CLSA-2026-1777304792 expat: Fix of 3 CVEs

🗓️ 29 Apr 2026 07:08:01Reported by GoogleType 
osv
 osv🔗 osv.dev👁 6 Views

Expat library fixes for three CVEs: external entity loop, namespace prefix extraction, and doctype heap overread.

Related
Refs
ReporterTitlePublishedViews
Family
IBM Security Bulletins		Security Bulletin: A security vulnerability has been identified in IBM HTTP Server, a component of IBM WebSphere Application Server, which is shipped with, or a required product for, IBM Tivoli Network Manager (CVE-2018-20843)
25 Mar 202011:36
–ibm
IBM Security Bulletins		Security Bulletin: Vulnerabilities in expat affects IBM BladeCenter Advanced Management Module (AMM)
14 Apr 202314:32
–ibm
IBM Security Bulletins		Security Bulletin: Multiple security vulnerabilities have been identified in IBM HTTP Server shipped with IBM Rational ClearCase (CVE-2022-43680, CVE-2013-0340, CVE-2017-9233)
13 Dec 202205:37
–ibm
IBM Security Bulletins		Security Bulletin: Multiple vulnerabilities affect IBM Tivoli Monitoring embedded WebSphere Application and IHS server
20 Dec 201908:47
–ibm
IBM Security Bulletins		Security Bulletin: A security vulnerability has been identified in IBM HTTP Server, a component of IBM WebSphere Application Server, which is required product for IBM Tivoli Netcool Configuration Manager (CVE-2018-20843)
24 Aug 202013:03
–ibm
IBM Security Bulletins		Security Bulletin: Vulnerabilities in Expat component shipped with IBM Rational ClearCase (CVE-2019-15903)
27 Mar 202014:17
–ibm
IBM Security Bulletins		Security Bulletin: A security vulnerability has been identified in IBM HTTP Server, a component of IBM WebSphere Application Server, which is shipped with, or a required product for, IBM Tivoli Netcool Configuration Manager (CVE-2018-20843)
25 Mar 202011:34
–ibm
IBM Security Bulletins		Security Bulletin: Multiple vulnerabilities in WebSphere Application Server bundled with Cloud Pak System and supporting products
6 May 202011:57
–ibm
IBM Security Bulletins		Security Bulletin: IBM Tivoli Monitoring Basic Services component (CVE-2019-15903)
12 Feb 202015:57
–ibm
IBM Security Bulletins		Security Bulletin: IBM Prospect is affected by Expat XML Parser vulnerability (CVE-2019-15903)
2 Jun 202016:38
–ibm
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01 Jun 2026 00:33Current
6.8Medium risk
Vulners AI Score6.8
CVSS 27.8
CVSS 3.17.5
EPSS0.05584
SSVC
expat libraryexternal entity loopnamespace prefix extractioninternal entities doctype
6