CVE-2026-59721

Hoppscotch: Admin RCE via MAILER_SMTP_URL nodemailer sendmail-transport injection

Published Jul 9, 2026 CVSS 3.1 · 7.2 High EPSS 1.0% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Hoppscotch
Hoppscotch hoppscotch
Vendors & Products Hoppscotch
Hoppscotch hoppscotch
Type Values Removed Values Added
Description 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.
Title Hoppscotch: Admin RCE via MAILER_SMTP_URL nodemailer sendmail-transport injection
Weaknesses CWE-77
CWE-78
CWE-915
References
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Jul 9, 2026, 7:13 PM
Reserved
Jul 6, 2026, 3:34 PM
Status
Deferred
Published
Jul 9, 2026, 6:16 PM
Modified
Jul 10, 2026, 7:15 PM