CVE-2026-48618

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-48618
StatePUBLISHED
Assignerhackerone
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-26 02:16:52 UTC
Updated2026-07-21 12:18:50 UTC
DescriptionA flaw in Node.js TLS hostname handling can cause Node.js unicode dot separator handling can lead to tls wildcard-depth authentication bypass due to resolver and verifier hostname normalization mismat. This can lead to confidentiality impact or bypass of the intended security boundary under affected configurations. This vulnerability affects all supported release lines: **Node.js 22**, **Node.js 24**, and **Node.js 26**.

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS: 0.024860000 probability, percentile 0.828560000 (date 2026-07-21)

Problem Types: CWE-176 | CWE-289 | CWE-176 CWE-176 Improper Handling of Unicode Encoding | CWE-289 Authentication Bypass by Alternate Name

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
3.1ADPCVSS7.7HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
3.10b0ca135-0b70-47e7-9f44-1890c2a1c46cSecondary7.7HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
3.0[email protected]Secondary7.7HIGHCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
3.0CNADECLARED7.7HIGHCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Nodejs Node.js 22.22.3 All All All
Application Nodejs Node.js 24.16.0 All All All
Application Nodejs Node.js 26.3.0 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Nodejs Node affected 22.22.3 22.22.3 semver Not specified
CNA Nodejs Node affected 24.16.0 24.16.0 semver Not specified
CNA Nodejs Node affected 26.3.0 26.3.0 semver Not specified
ADP Red Hat Red Hat Enterprise Linux 10 unaffected 1:24.18.0-1.el10_2 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 10 unaffected 1:22.23.1-2.el10_2 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support unaffected 1:22.23.1-2.el10_0 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 8 unaffected 8100020260630152626.6d880403 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 8 unaffected 8100020260703140402.6d880403 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 9 unaffected 9080020260626074955.rhel9 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 9 unaffected 9080020260626075442.rhel9 * rpm Not specified
ADP Red Hat Red Hat Hardened Images unaffected 22.23.1-1.hum1 * rpm Not specified
ADP Red Hat Red Hat Hardened Images unaffected 24.18.0-0.1.hum1 * rpm Not specified
ADP Red Hat Red Hat Hardened Images unaffected 26.4.0-1.2.hum1 * rpm Not specified
ADP Red Hat Red Hat Hardened Images unaffected 25.9.0-1.1.hum1 * rpm Not specified
ADP Red Hat Red Hat Hardened Images unaffected 20.20.2-1.hum1 * rpm Not specified

References

ReferenceSourceLinkTags
access.redhat.com/errata/RHSA-2026:7378 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/security/cve/CVE-2026-48618 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:35891 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:35842 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:41947 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
nodejs.org/en/blog/vulnerability/june-2026-security-releases [email protected] nodejs.org Patch, Vendor Advisory
access.redhat.com/errata/RHSA-2026:28727 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:35892 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:35841 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-48618.json 0b0ca135-0b70-47e7-9f44-1890c2a1c46c security.access.redhat.com
access.redhat.com/errata/RHSA-2026:39246 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
bugzilla.redhat.com/show_bug.cgi 0b0ca135-0b70-47e7-9f44-1890c2a1c46c bugzilla.redhat.com
access.redhat.com/errata/RHSA-2026:39868 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:9455 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:29012 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:30172 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

SourceTimeEvent
ADP2026-06-26T02:02:10.741ZReported to Red Hat.
ADP2026-06-26T01:14:36.868ZMade public.

Solutions

ADP: RHSA-2026:39246: Red Hat Enterprise Linux AppStream EUS (v. 10.0)

ADP: RHSA-2026:35842: Red Hat Enterprise Linux AppStream (v. 10)

ADP: RHSA-2026:35841: Red Hat Enterprise Linux AppStream (v. 10)

ADP: RHSA-2026:41947: Red Hat Enterprise Linux AppStream (v. 8)

ADP: RHSA-2026:39868: Red Hat Enterprise Linux AppStream (v. 8)

ADP: RHSA-2026:35892: Red Hat Enterprise Linux AppStream (v. 9)

ADP: RHSA-2026:35891: Red Hat Enterprise Linux AppStream (v. 9)

ADP: RHSA-2026:9455: Red Hat Hardened Images

ADP: RHSA-2026:28727: Red Hat Hardened Images

ADP: RHSA-2026:29012: Red Hat Hardened Images

ADP: RHSA-2026:7378: Red Hat Hardened Images

ADP: RHSA-2026:30172: Red Hat Hardened Images

Workarounds

ADP: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

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