CVE-2024-27317

A path traversal vulnerability was found in Apache Pulsar. Pulsar allows authenticated users to upload functions to be run by the Pulsar Function Workers, these codes are in the format of a ZIP file. When extracting the uploaded ZIP file Pulsar fails to properly validate the file names contained ...

CVE-2024-27317

Root cause: a directory traversal in archive extraction when uploaded ZIPs (jar/nar) are processed by Pulsar Functions Worker, allowing creation/modification of files outside the extraction dir. Attack surface includes Pulsar Broker when functionsWorkerEnabled=true. Affected versions span 2.4.0–2...

CVE-2024-27317 Apache Pulsar: Pulsar Functions Worker's Archive Extraction Vulnerability Allows Unauthorized File Modification

In Pulsar Functions Worker, authenticated users can upload functions in jar or nar files. These files, essentially zip files, are extracted by the Functions Worker. However, if a malicious file is uploaded, it could exploit a directory traversal vulnerability. This occurs when the filenames in th...