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CVE-2026-34480

🗓️ 10 Apr 2026 16:16:00Reported by ubuntu.comType 
ubuntucve
 ubuntucve🔗 ubuntu.com👁 4 Views

CVE-2026-34480: Log4j Core XmlLayout fails to sanitize XML 1.0 forbidden chars; upgrade to 2.25.4.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
IBM Security Bulletins		Security Bulletin: Vulnerability in log4j/2.x affects IBM watsonx Assistant Cartridge and IBM watsonx Orchestrate with watsonx Assistant Cartridge.
22 Jun 202613:42
–ibm
IBM Security Bulletins		Security Bulletin: IBM InfoSphere Information Server is affected by multiple vulnerabilities in Apache Log4j
24 Jun 202622:08
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IBM Security Bulletins		Security Bulletin: SPSS Collaboration and Deployment Services is affected by multiple vulnerabilities in Apache Log4j
1 Jul 202605:01
–ibm
IBM Security Bulletins		Security Bulletin: There is a vulnerability in log4j-core-2.25.3.jar used by IBM Maximo Manage application in IBM Maximo Application Suite (CVE-2026-34477, CVE-2026-34478, CVE-2026-34480)
29 May 202609:54
–ibm
IBM Security Bulletins		Security Bulletin: IBM® Db2® federated server is affected by multiple vulnerabilities in log4j v2.25.3.
23 Jun 202619:51
–ibm
IBM Security Bulletins		Security Bulletin: Log4j Core TLS hostname verification bypass via verifyHostName XML attribute allows man-in-the-middle attacks on SMTP/Socket/Syslog appenders.
29 Jun 202613:33
–ibm
IBM Security Bulletins		Security Bulletin: Vulnerability in log4j/2.x affects IBM watsonx Assistant Cartridge and IBM watsonx Orchestrate with watsonx Assistant Cartridge.
22 Jun 202613:41
–ibm
IBM Security Bulletins		Security Bulletin: IBM App Connect Enterprise Certified Container operator and operands are vulnerable to loss of confidentiality and denial of service due to multiple CVEs
2 Jul 202610:42
–ibm
IBM Security Bulletins		Security Bulletin: IBM Sterling External Authentication Server is vulnerable to multiple issues
24 Jun 202606:08
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IBM Security Bulletins		Security Bulletin: Multiple Vulnerabilities in Apache Log4j Core shipped in Tivoli Netcool/OMNIbus
29 May 202612:15
–ibm
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Ubuntu26.04anyapache-log4j1.20apache-log4j1.2_0_any.deb
Ubuntu14.04anyapache-log4j1.20apache-log4j1.2_0_any.deb
Ubuntu18.04anyapache-log4j1.20apache-log4j1.2_0_any.deb
Ubuntu20.04anyapache-log4j1.20apache-log4j1.2_0_any.deb
Ubuntu22.04anyapache-log4j1.20apache-log4j1.2_0_any.deb
Ubuntu24.04anyapache-log4j1.20apache-log4j1.2_0_any.deb
Ubuntu25.10anyapache-log4j1.20apache-log4j1.2_0_any.deb
Ubuntu26.04anyapache-log4j20apache-log4j2_0_any.deb
Ubuntu16.04anyapache-log4j20apache-log4j2_0_any.deb
Ubuntu18.04anyapache-log4j20apache-log4j2_0_any.deb
Rows per page

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16 Apr 2026 03:27Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.17.5
CVSS 46.9
EPSS0.0086
SSVC
log4j corelayoutforbidden charactersmarkup language version oneupgrade recommendation
4