CVE-2026-59721

highCVSS 7.2covered by 1 sourcefirst seen 2026-07-09

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.

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Exploitation outlook

Low exploitation risk0.52% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 40% of all EPSS-scored CVEs.

Advisory coverage (1)

highCVE-2026-59721: Hoppscotch is an open source API development ecosystem. Prior to 2026.6.0, the updateInfraConf…nvd · 2026-07-09

External references

NVD record for CVE-2026-59721

CVE.org record

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