Bug 2457911

Summary: CVE-2026-34479 apache-commons-configuration: Apache Log4j 1-to-Log4j 2 bridge: Log processing denial of service due to improper XML escaping [fedora-all]
Product: [Fedora] Fedora Reporter: Jon Moroney <jmoroney>
Component: apache-commons-configurationAssignee: Jerry James <loganjerry>
Status: CLOSED NOTABUG QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: medium    
Version: rawhideCC: epel-packagers-sig, extras-orphan, java-sig-commits, loganjerry, michel, SpikeFedora
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["5d06637a-ca77-4883-9556-50c64b3cde2f"]}
Fixed In Version: Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-04-13 17:00:46 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2457313    

Description Jon Moroney 2026-04-13 16:52:14 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Comment 1 Jerry James 2026-04-13 17:00:46 UTC 
The log4j functionality is only used for the tests, which are not shipped in any binary RPM. It also doesn't use the log4j 1-to-log4j 2 bridge, so there is no way to trigger this vulnerability.