CVE-2026-59721

Summary

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.

Affected Software

VendorProductVersion RangeStatus
hoppscotchhoppscotch< 2026.6.0affected

Weaknesses

  • CWE-77: CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')
  • CWE-78: CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
  • CWE-915: CWE-915: Improperly Controlled Modification of Dynamically-Determined Object Attributes

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: poc
    • Automatable: no
    • Technical Impact: total

Additional References

References