Skip to content

fix(deps): update dependency org.apache.logging.log4j:log4j-core to v2.25.4 [security]#258

Open
renovate[bot] wants to merge 1 commit intomasterfrom
renovate/log4j.version
Open

fix(deps): update dependency org.apache.logging.log4j:log4j-core to v2.25.4 [security]#258
renovate[bot] wants to merge 1 commit intomasterfrom
renovate/log4j.version

Conversation

@renovate
Copy link
Copy Markdown
Contributor

@renovate renovate bot commented Apr 10, 2026

This PR contains the following updates:

Package Change Age Confidence
org.apache.logging.log4j:log4j-core (source) 2.25.32.25.4 age confidence

GitHub Vulnerability Alerts

CVE-2026-34480

Apache Log4j Core's XmlLayout https://logging.apache.org/log4j/2.x/manual/layouts.html#XmlLayout , in versions up to and including 2.25.3, fails to sanitize characters forbidden by the XML 1.0 specification https://www.w3.org/TR/xml/#charsets producing invalid XML output whenever a log message or MDC value contains such characters.

The impact depends on the StAX implementation in use:

  • JRE built-in StAX: Forbidden characters are silently written to the output, producing malformed XML. Conforming parsers must reject such documents with a fatal error, which may cause downstream log-processing systems to drop the affected records.
  • Alternative StAX implementations (e.g., Woodstox https://github.com/FasterXML/woodstox , a transitive dependency of the Jackson XML Dataformat module): An exception is thrown during the logging call, and the log event is never delivered to its intended appender, only to Log4j's internal status logger.

Users are advised to upgrade to Apache Log4j Core 2.25.4, which corrects this issue by sanitizing forbidden characters before XML output.


Configuration

📅 Schedule: (UTC)

  • Branch creation
    • ""
  • Automerge
    • At any time (no schedule defined)

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.


  • If you want to rebase/retry this PR, check this box

This PR was generated by Mend Renovate. View the repository job log.

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

None yet

Projects

None yet

Development

Successfully merging this pull request may close these issues.

0 participants