fast-xml-parser is an open source, pure javascript xml parser. fast-xml-parser allows special characters in entity names, which are not escaped or sanitized. Since the entity name is used for creating a regex for searching and replacing entities in the XML body, an attacker can abuse it for denial of service (DoS) attacks. By crafting an entity name that results in an intentionally bad performing regex and utilizing it in the entity replacement step of the parser, this can cause the parser to stall for an indefinite amount of time. This problem has been resolved in v4.2.4. Users are advised to upgrade. Users unable to upgrade should avoid using DOCTYPE parsing by setting the `processEntities: false` option.
                
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        History
                    No history.
 MITRE
                        MITRE
                    Status: PUBLISHED
Assigner: GitHub_M
Published: 2023-06-06T17:35:54.699Z
Updated: 2024-08-02T16:01:54.110Z
Reserved: 2023-05-25T21:56:51.246Z
Link: CVE-2023-34104
 Vulnrichment
                        Vulnrichment
                    No data.
 NVD
                        NVD
                    Status : Modified
Published: 2023-06-06T18:15:11.643
Modified: 2024-11-21T08:06:33.287
Link: CVE-2023-34104
 Redhat
                        Redhat