In ArangoDB, versions v3.7.0 through v3.9.0-alpha.1 have a feature which allows downloading a Foxx service from a publicly available URL. This feature does not enforce proper filtering of requests performed internally, which can be abused by a highly-privileged attacker to perform blind SSRF and send internal requests to localhost.

References

• https://nvd.nist.gov/vuln/detail/CVE-2021-25939
• arangodb/arangodb@d7b35a6
• arangodb/arangodb@d9b7f01
• https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25939