CVE-2026-59721

HIGHPre-NVD 7.27.2—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.2 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5%, top 60% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this weekElevated
7.2
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.2Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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 v3
7.2
EG Score
7.2(medium)
EPSS
40.4%
KEV
Not listed

Published

July 9, 2026

Last Modified

July 10, 2026

Advisory Details (4)

Auto-updated Jul 9, 2026
Patch available. Sources: github_release, github, github_commit, github_pr.
github Patch Available

Admin RCE via MAILER_SMTP_URL nodemailer sendmail-transport injection · Advisory · hoppscotch/hoppscotch · GitHub

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

2026.6.0

Patch available: hoppscotch/hoppscotch 2026.6.0

https://github.com/hoppscotch/hoppscotch/releases/tag/2026.6.0
github_pr Patch Available

fix(backend): reject path/query/fragment in SMTP URL validation

Patch available: hoppscotch/hoppscotch 2026.6.0 (PR #6413 merged 2026-06-11)

https://github.com/hoppscotch/hoppscotch/pull/6413
github_commit Patch Available

commit 73a88c82b1b2 (hoppscotch/hoppscotch)

Patch available: hoppscotch/hoppscotch 2026.6.0 (contains commit 73a88c82b1b2)

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

Weakness Classification(3)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 8× in last 7d / 8× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-11 17:17 UTCEG score recompute
  2. 2026-07-11 08:27 UTCEPSS rescore
  3. 2026-07-11 08:27 UTCEPSS rescore
  4. 2026-07-11 05:27 UTCEG score recompute
  5. 2026-07-10 17:37 UTCEG score recompute
  6. 2026-07-10 05:47 UTCEG score recompute
  7. 2026-07-09 17:57 UTCEG score recompute
  8. 2026-07-09 17:56 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-59721?
CVE-2026-59721 is a high vulnerability published on July 9, 2026. 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 MAILERSMTPURL value, and validateSMTPUrl in utils.ts permits path, query, or fragment content that nodemailer parses into…
When was CVE-2026-59721 disclosed?
CVE-2026-59721 was first published in the National Vulnerability Database on July 9, 2026, with the most recent update on July 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-59721 actively exploited?
CVE-2026-59721 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 40.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-59721?
CVE-2026-59721 has a CVSS v3 base score of 7.2 (NVD).
How do I remediate CVE-2026-59721?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-59721, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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