CVE-2026-59721

HIGH7.2

Hoppscotch: Admin RCE via MAILER_SMTP_URL nodemailer sendmail-transport injection

Published Jul 9, 2026

Modified 6 days ago

Details

Hoppscotch is an open source API development ecosystem. Prior to 2026.6.0, the updateInfraConfigs GraphQL mutation in admin/infra.resolver.ts accepts an attacker-controlled MAILER_SMTP_URL value, and validateSMTPUrl in utils.ts permits path, query, or fragment content that nodemailer parses into sendmail transport options, allowing an admin to execute arbitrary commands as root in the backend container after restart and mail sending. This issue is fixed in version 2026.6.0.

References

WEB

https://github.com/hoppscotch/hoppscotch/commit/73a88c82b1b2cada26cc4b2bc095b54554242239

WEB

https://github.com/hoppscotch/hoppscotch/pull/6413

WEB

https://github.com/hoppscotch/hoppscotch/releases/tag/2026.6.0

DETECTION

https://github.com/hoppscotch/hoppscotch/security/advisories/GHSA-v7q6-r45w-2c6r

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2026-59721

CVSS Analysis