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TI-2026-40988 Aliases CVE-2026-56846GHSA-frc8-j9wv-2348

Uncontrolled resource consumption in NodeJS node

Priority LOW 39CWE-400Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 6 fixed, 1 without a fix

Attack profile from CVSS 3.0 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-400.

Summary

A flaw in Node.js HTTP/2 handling can cause HTTP/2 retained header blocks evade maxSessionMemory and enable remote memory exhaustion. This vulnerability affects Node.js **24.x** and **22.x**.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.005 43rd percentileScored 2026-11-07
Fix Partial Red Hat: 10 advisoriesRed Hat: 6 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
NodeJSnode24.18.0 – 24.18.0; 22.23.1 – 22.23.1—No fix listedCNA
  • node VendorNodeJS Affected 24.18.0 – 24.18.0; 22.23.1 – 22.23.1 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:nodejs:node.js:*:*:*:*:*:*:*:*——NodeJS
  • cpe:2.3:a:nodejs:node.js:*:*:*:*:*:*:*:* Versions — — ·NodeJS

Remediation

Red Hat 10 advisories

  • RHSA-2026:64817 Released 2026-09-08 · Red Hat rating Important
    nodejs22 security update
    • Red Hat Enterprise Linux AppStream EUS (v. 10.0) nodejs-1:22.23.2-1.el10_0, nodejs-devel-1:22.23.2-1.el10_0, nodejs-docs-1:22.23.2-1.el10_0 +4
  • RHSA-2026:62583 Released 2026-09-02 · Red Hat rating Important
    nodejs:24 security update
    • Red Hat Enterprise Linux AppStream (v. 8) nodejs-1:24.19.0-1.module+el8.10.0+24711+b610b202.aarch64::nodejs:24, nodejs-1:24.19.0-1.module+el8.10.0+24711+b610b202.ppc64le::nodejs:24, nodejs-1:24.19.0-1.module+el8.10.0+24711+b610b202.s390x::nodejs:24 +25
  • RHSA-2026:62416 Released 2026-09-02 · Red Hat rating Important
    nodejs:22 security update
    • Red Hat Enterprise Linux AppStream EUS (v.9.6) nodejs-1:22.23.2-1.module+el9.6.0+24769+299a7e3a.aarch64::nodejs:22, nodejs-1:22.23.2-1.module+el9.6.0+24769+299a7e3a.ppc64le::nodejs:22, nodejs-1:22.23.2-1.module+el9.6.0+24769+299a7e3a.s390x::nodejs:22 +28
Show 7 more Red Hat advisories
  • RHSA-2026:62219 Released 2026-09-01 · Red Hat rating Important
    nodejs:22 security update
    • Red Hat Enterprise Linux AppStream (v. 8) nodejs-1:22.23.2-1.module+el8.10.0+24710+c2e9b41f.aarch64::nodejs:22, nodejs-1:22.23.2-1.module+el8.10.0+24710+c2e9b41f.ppc64le::nodejs:22, nodejs-1:22.23.2-1.module+el8.10.0+24710+c2e9b41f.s390x::nodejs:22 +28
  • RHSA-2026:61383 Released 2026-08-31 · Red Hat rating Important
    nodejs:22 security update
    • Red Hat Enterprise Linux AppStream (v. 9) nodejs-1:22.23.2-1.module+el9.8.0+24709+804d6b5b.aarch64::nodejs:22, nodejs-1:22.23.2-1.module+el9.8.0+24709+804d6b5b.ppc64le::nodejs:22, nodejs-1:22.23.2-1.module+el9.8.0+24709+804d6b5b.s390x::nodejs:22 +28
  • RHSA-2026:61386 Released 2026-08-31 · Red Hat rating Important
    nodejs:24 security update
    • Red Hat Enterprise Linux AppStream (v. 9) nodejs-1:24.19.0-1.module+el9.8.0+24708+e71d2e1d.aarch64::nodejs:24, nodejs-1:24.19.0-1.module+el9.8.0+24708+e71d2e1d.ppc64le::nodejs:24, nodejs-1:24.19.0-1.module+el9.8.0+24708+e71d2e1d.s390x::nodejs:24 +25
  • RHSA-2026:61377 Released 2026-08-31 · Red Hat rating Important
    nodejs24 security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 10) nodejs24-1:24.19.0-1.el10_2, nodejs24-devel-1:24.19.0-1.el10_2, nodejs24-docs-1:24.19.0-1.el10_2 +3
  • RHSA-2026:61376 Released 2026-08-31 · Red Hat rating Important
    nodejs22 security update
    • Red Hat Enterprise Linux AppStream (v. 10) nodejs-1:22.23.2-1.el10_2, nodejs-devel-1:22.23.2-1.el10_2, nodejs-docs-1:22.23.2-1.el10_2 +4
  • RHSA-2026:48537 Released 2026-07-30 · Red Hat rating Important
    Red Hat Hardened Images RPMs bug fix and enhancement update
    • Red Hat Hardened Images nodejs24-1:24.18.1-0.1.hum1@aarch64, nodejs24-1:24.18.1-0.1.hum1@src, nodejs24-1:24.18.1-0.1.hum1@x86_64 +14
  • RHSA-2026:48305 Released 2026-07-29 · Red Hat rating Important
    Red Hat Hardened Images RPMs bug fix and enhancement update
    • Red Hat Hardened Images nodejs22-1:22.23.2-2.3.hum1@aarch64, nodejs22-1:22.23.2-2.3.hum1@src, nodejs22-1:22.23.2-2.3.hum1@x86_64 +14

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 9AffectedNo fix yet
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2026:61376, RHSA-2026:61377
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2026:62219, RHSA-2026:62583
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2026:61383, RHSA-2026:61386
Red Hat Enterprise Linux AppStream EUS (v. 10.0)Fixed RHSA-2026:64817
Red Hat Enterprise Linux AppStream EUS (v.9.6)Fixed RHSA-2026:62416
Red Hat Hardened ImagesFixed RHSA-2026:48305, RHSA-2026:48537
Not affected: 1 product
  • Red Hat Hardened Images

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-56846
  2. 2026-10-03 Alias added: GHSA-frc8-j9wv-2348

References

Other 1

  • TI-2026-79288 Out-of-bounds write in Google Brotli decoder KEVCVSS 4.0CRITICAL 9.2
  • TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
  • TI-2024-18584 Race condition in NodeJS Node CVSS 3.0HIGH 8.2
  • TI-2016-01993 The DES and Triple DES ciphers, as used in the TLS, SSH, and IPSec protocols and other… CVSS 3.1HIGH 7.5
  • TI-2024-03325 Command injection vulnerability in programing languages on Microsoft Windows operating system. CVSS 3.1CRITICAL 9.8
  • TI-2022-03472 X.509 Email Address Variable Length Buffer Overflow CVSS 3.1HIGH 7.5
See all 295 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences