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Node.js EUVDEUVD-2026-39607

| CVE-2026-48619 HIGH
Uncontrolled Resource Consumption (CWE-400)
2026-06-18 GHSA-v3cq-r2f8-qmmc
Denial Of Service Red Hat Suse Node Js
7.5
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
vuln.today AI
7.5 HIGH

Remote peer triggers unbounded memory growth over HTTP/2 with no auth or interaction (AV:N/AC:L/PR:N/UI:N); impact is availability-only (A:H), no confidentiality or integrity loss.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
SUSE
5.9 MEDIUM
AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Red Hat
5.3 MEDIUM
qualitative

Primary rating from NVD.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

9
Analysis Updated
Jun 26, 2026 - 20:33 vuln.today
v3 (cvss_changed)
Analysis Updated
Jun 26, 2026 - 20:33 vuln.today
v2 (cvss_changed)
Re-analysis Queued
Jun 26, 2026 - 20:22 vuln.today
cvss_changed
Severity Changed
Jun 26, 2026 - 20:22 NVD
MEDIUM HIGH
CVSS changed
Jun 26, 2026 - 20:22 NVD
5.3 (MEDIUM) 7.5 (HIGH)
Source Code Evidence Fetched
Jun 26, 2026 - 02:24 vuln.today
Analysis Generated
Jun 26, 2026 - 02:24 vuln.today
CVSS changed
Jun 26, 2026 - 02:22 NVD
5.3 (MEDIUM)
CVE Published
Jun 18, 2026 - 04:37 github-releases
UNKNOWN (no severity yet)

Description PRE-NVD

Disclosed via GitHub release of nodejs/node. NVD scoring and full description are pending.

AnalysisAI

Denial of service in Node.js HTTP/2 lets a remote peer exhaust process memory by driving unbounded growth of the connection's originSet, the structure that tracks origins advertised via HTTP/2 ORIGIN frames. It affects the 22.x, 24.x and 26.x release lines up to and including Node 22.22.3, 24.16.0 and 26.3.0, and is fixed in the June 2026 security release (26.3.1). …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Induce Node http2 client to connect to malicious peer
Exploit
Flood connection with HTTP/2 ORIGIN frames
Execution
Unbounded originSet growth consumes heap
Impact
Process memory exhausted, service crashes
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Vulnerability AssessmentAI

Exploitation Exploitation requires an HTTP/2 connection using Node's built-in http2 module where the attacker-controlled peer can send a large/continuous stream of ORIGIN frames that feed the connection's originSet; the unbounded-growth defect is the absence of a cap on that set. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment Signals are internally consistent and point to a real but moderate-priority DoS. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario A Node.js service that opens HTTP/2 client connections to a remote endpoint (or coalesces connections) is pointed at, or tricked into reaching, an attacker-controlled server. The server streams a continuous flood of HTTP/2 ORIGIN frames advertising distinct origins, growing the victim's originSet without bound until heap memory is exhausted and the Node process slows or crashes. …
Remediation Vendor-released patch: Node.js 26.3.1, which caps the originSet size; upgrade the 26.x line to 26.3.1 (or later). … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

Within 24 hours: Inventory all Node.js deployments and identify versions in use (specifically 22.22.3 or earlier, 24.16.0 or earlier, 26.3.0 or earlier). …

Sign in for detailed remediation steps and compensating controls.

Threat intelligence, references, and detailed analysis are available after sign-in.

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Vendor StatusVendor

SUSE

Severity: Moderate
Product Status
SUSE Linux Enterprise High Performance Computing 15 SP7 SUSE Linux Enterprise Module for Web and Scripting 15 SP7 SUSE Linux Enterprise Server 15 SP7 SUSE Linux Enterprise Server for SAP Applications 15 SP7 Fixed
SUSE Linux Enterprise Server 15 SP6-LTSS Fixed
SUSE Linux Enterprise Server for SAP Applications 15 SP6 Fixed
openSUSE Tumbleweed Fixed
SUSE Linux Enterprise Module for Web and Scripting 15 SP7 Affected

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EUVD-2026-39607 vulnerability details – vuln.today
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