CVE-2026-48934

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreHIGH confidence

Score 4.3 from GitHub Security Advisory published 2026-06-26. a secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — Patch released this week
4.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 4.3Exploit: NoneExposed: 0

A fix is available — apply it.

A flaw in Node.js TLS host verification can cause an attacker to bypass certification validation. This vulnerability affects all supported release lines: Node.js 22, Node.js 24, and Node.js 26.

CVSS v3
4.3
EG Score
4.3(high)
EPSS
17.1%
KEV
Not listed

Published

June 26, 2026

Last Modified

June 29, 2026

Advisory Details (1)

Auto-updated Jun 26, 2026
No patch confirmed yet.
generic

Node.js — Thursday, June 18, 2026 Security Releases

https://nodejs.org/en/blog/vulnerability/june-2026-security-releases

Vendor Advisories for CVE-2026-48934(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatnodejs24-1:24.18.0-1.el10_22026-07-06redhat
redhatnodejs22-1:22.23.1-2.el10_22026-07-06redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

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

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 21× in last 7d / 37× 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. 2026-07-06 17:06 UTCEG score recompute
  2. 2026-07-06 17:06 UTCVendor advisory
  3. 2026-07-06 17:06 UTCGHSA enrichment
  4. 2026-07-06 16:27 UTCEPSS rescore
  5. 2026-07-06 02:23 UTCEPSS rescore
  6. 2026-07-05 18:01 UTCEG score recompute
  7. 2026-07-05 18:00 UTCGHSA enrichment
  8. 2026-07-05 02:30 UTCEPSS rescore
  9. 2026-07-04 18:59 UTCEG score recompute
  10. 2026-07-04 18:59 UTCGHSA enrichment
  11. 2026-07-04 06:31 UTCEPSS rescore
  12. 2026-07-03 19:58 UTCEG score recompute
  13. 2026-07-03 19:58 UTCGHSA enrichment
  14. 2026-07-02 20:57 UTCEG score recompute
  15. 2026-07-02 20:57 UTCGHSA enrichment
  16. 2026-07-01 21:57 UTCEG score recompute
  17. 2026-07-01 21:56 UTCGHSA enrichment
  18. 2026-07-01 15:07 UTCEPSS rescore
  19. 2026-06-30 23:22 UTCEPSS rescore
  20. 2026-06-30 22:54 UTCEG score recompute
  21. 2026-06-30 22:54 UTCGHSA enrichment
  22. 2026-06-29 23:53 UTCEG score recompute
  23. 2026-06-29 23:53 UTCGHSA enrichment
  24. 2026-06-29 14:06 UTCEPSS rescore
  25. 2026-06-29 14:06 UTCEPSS rescore
Show 12 more
  1. 2026-06-29 00:53 UTCEG score recompute
  2. 2026-06-29 00:53 UTCGHSA enrichment
  3. 2026-06-28 14:07 UTCEPSS rescore
  4. 2026-06-28 04:56 UTCEPSS rescore
  5. 2026-06-28 04:56 UTCEPSS rescore
  6. 2026-06-28 01:52 UTCEG score recompute
  7. 2026-06-28 01:52 UTCGHSA enrichment
  8. 2026-06-27 03:08 UTCEPSS rescore
  9. 2026-06-27 02:50 UTCEG score recompute
  10. 2026-06-27 02:50 UTCGHSA enrichment
  11. 2026-06-26 03:46 UTCEG score recompute
  12. 2026-06-26 03:46 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-48934?
CVE-2026-48934 is a medium vulnerability published on June 26, 2026. A flaw in Node.js TLS host verification can cause an attacker to bypass certification validation. This vulnerability affects all supported release lines: Node.js 22, Node.js 24, and Node.js 26.
When was CVE-2026-48934 disclosed?
CVE-2026-48934 was first published in the National Vulnerability Database on June 26, 2026, with the most recent update on June 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-48934 actively exploited?
CVE-2026-48934 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 17.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-48934?
CVE-2026-48934 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-48934?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-48934, 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

Explore the affected products and dependency analysis for CVE-2026-48934

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