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Node.js EUVDEUVD-2026-37928

| CVE-2026-48937 HIGH
Uncontrolled Resource Consumption (CWE-400)
2026-06-18 GHSA-p9qf-hwxr-qhff
Denial Of Service Node.js Node Js
7.5
CVSS 3.1 · NVD
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Severity by source

Vendor (CNA) PRIMARY
MEDIUM
qualitative
NVD
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

HTTP/2 endpoint reachable over network without credentials; resource exhaustion causes availability loss only, with no confidentiality or integrity impact.

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
5.3 MEDIUM
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Red Hat
5.3 MEDIUM
qualitative

Primary rating from Vendor (CNA).

CVSS VectorNVD

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

Lifecycle Timeline

8
Analysis Updated
Aug 18, 2026 - 18:14 vuln.today
v2 (cvss_changed)
Re-analysis Queued
Aug 18, 2026 - 18:07 vuln.today
cvss_changed
Severity Changed
Aug 18, 2026 - 18:07 NVD
MEDIUM HIGH
CVSS changed
Aug 18, 2026 - 18:07 NVD
5.3 (MEDIUM) 7.5 (HIGH)
Source Code Evidence Fetched
Jun 18, 2026 - 19:41 vuln.today
Analysis Generated
Jun 18, 2026 - 19:41 vuln.today
CVSS changed
Jun 18, 2026 - 19:38 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

Uncontrolled resource consumption in Node.js's HTTP/2 stack (≤24.16.0 and ≤22.22.3) enables remote unauthenticated denial-of-service via integration defects between Node.js and its bundled nghttp2 dependency (updated to 1.69.0 in the fix). The CVSS 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) reflects fully network-exploitable, zero-interaction availability impact. No public exploit or active exploitation has been identified at time of analysis (EPSS 0.40%, SSVC exploitation: none), though CISA SSVC classifies the attack as automatable.

Technical ContextAI

Node.js embeds nghttp2, a C library implementing the HTTP/2 framing and session layer (RFC 7540). CVE-2026-48937 is rooted in integration defects between Node.js's HTTP/2 bindings and nghttp2 - surfaced when nghttp2 was updated to 1.69.0 - that allow the library to be driven into an uncontrolled resource consumption state (CWE-400). The fix, commit a8a0d12875, patches the Node.js integration layer (deps/) to handle behavioral changes in nghttp2 1.69.0 correctly. Affected CPE: cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* covering both the 24.x and 22.x LTS lines. Note that a related but distinct CVE (CVE-2026-48619) addresses HTTP/2 originSet unbounded memory growth in the same release, both falling under the HTTP/2 resource-exhaustion class.

RemediationAI

Upgrade to Node.js v24.17.0 ('Krypton' LTS) on the 24.x line; the corresponding fixed version for the 22.x LTS line should be confirmed via https://nodejs.org/en/blog/vulnerability/june-2026-security-releases, as the exact 22.x patch version is not specified in available data. SUSE Linux Enterprise administrators should apply SUSE-SU-2026:2633 or SUSE-SU-2026:2647 as appropriate. The upstream fix is commit a8a0d12875 (PR #62891 in nodejs/node). As a compensating control prior to patching, placing a reverse proxy (nginx, HAProxy, Envoy) with HTTP/2 connection and stream rate limits in front of Node.js will reduce the blast radius - note this adds latency and does not fully eliminate the flaw. Disabling HTTP/2 entirely (forcing HTTP/1.1) fully mitigates the nghttp2 integration path at the cost of multiplexing and header compression benefits.

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Same weakness CWE-400 – Uncontrolled Resource Consumption

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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-2026-37928 vulnerability details – vuln.today
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