CVE-2026-59721

Hoppscotch: Admin RCE via MAILER_SMTP_URL nodemailer sendmail-transport injection

CVSS 7.2 HIGHCWE-77 CWE-78 CWE-915

Vexday Risk Score

18Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 7.2EPSS —KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

09 Jul 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected products

hoppscotch · hoppscotch

References

https://github.com/hoppscotch/hoppscotch/commit/73a88c82b1b2cada26cc4b2bc095b54554242239 https://github.com/hoppscotch/hoppscotch/pull/6413 https://github.com/hoppscotch/hoppscotch/releases/tag/2026.6.0 https://github.com/hoppscotch/hoppscotch/security/advisories/GHSA-v7q6-r45w-2c6r