How severe is CVE-2026-48615?

CVE-2026-48615 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-48615 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-48615?

CVE-2026-48615 primarily affects Nodejs Node.js. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-48615?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-48615 have an EU (EUVD) identifier?

Yes. CVE-2026-48615 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-39606.

When was CVE-2026-48615 published?

CVE-2026-48615 was published on 2026-06-26.

CVE-2026-48615

CVE-2026-48615 is a high-severity vulnerability in Nodejs Node.js with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-359.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-39606
Weakness: CWE-359
Affected product: Nodejs Node.js
Published: 2026-06-26
Last modified: 2026-06-26

Description

A flaw in Node.js proxy tunnel error handling could expose proxy credentials in `ERR_PROXY_TUNNEL` error messages. When proxy credentials are embedded in the proxy URL, they may be exposed through error handling paths and captured by logs, diagnostics, or other error consumers. This vulnerability affects all supported release lines: **Node.js 22**, **Node.js 24**, and **Node.js 26**.

Frequently asked questions

What is CVE-2026-48615?: A flaw in Node.js proxy tunnel error handling could expose proxy credentials in `ERR_PROXY_TUNNEL` error messages. When proxy credentials are embedded in the proxy URL, they may be exposed through error handling paths and captured by logs, diagnostics, or other error consumers. This vulnerability affects all supported release lines: **Node.js 22**, **Node.js 24**, and **Node.js 26**.
How severe is CVE-2026-48615?: CVE-2026-48615 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-48615 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-48615?: CVE-2026-48615 primarily affects Nodejs Node.js. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-48615?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-48615 have an EU (EUVD) identifier?: Yes. CVE-2026-48615 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-39606.
When was CVE-2026-48615 published?: CVE-2026-48615 was published on 2026-06-26.

References

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

Affected products (3)

cpe:2.3:a:nodejs:node.js:22.22.3:*:*:*:-:*:*:*
cpe:2.3:a:nodejs:node.js:24.16.0:*:*:*:-:*:*:*
cpe:2.3:a:nodejs:node.js:26.3.0:*:*:*:-:*:*:*

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