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TI-2026-02204 Aliases CVE-2026-2581GHSA-phc3-fgpg-7m6h

Resource allocation without limits in NodeJS undici

Priority LOW 27CWE-770Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 3 fixed, 12 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-770.

Summary

This is an uncontrolled resource consumption vulnerability (CWE-400) that can lead to Denial of Service (DoS). In vulnerable Undici versions, when interceptors.deduplicate() is enabled, response data for deduplicated requests could be accumulated in memory for downstream handlers. An attacker-controlled or untrusted upstream endpoint can exploit this with large/chunked responses and concurrent identical requests, causing high memory usage and potential OOM process termination. Impacted users are applications that use Undici’s deduplication interceptor against endpoints that may produce large or long-lived response bodies. PatchesThe issue has been patched by changing deduplication behavior to stream response chunks to downstream handlers as they arrive (instead of full-body accumulation), and by preventing late deduplication when body streaming has already started. Users should upgrade to the first official Undici (and Node.js, where applicable) releases that include this patch.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0063 50th percentileScored 2026-11-07
Fix Partial undici (undici): 6.24.0: 7.24.0undici (npm): 7.24.0Red Hat: 3 advisoriesRed Hat: 3 fixed, 12 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
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
NodeJSundici< 6.24.0; 7.0.0 < 7.24.06.24.0: 7.24.0Patch availableCNA
—undici (npm)7.17.0 to before 7.24.07.24.0Patch availableGHSA-phc3-fgpg-7m6h
  • undici VendorNodeJS Affected < 6.24.0; 7.0.0 < 7.24.0 Fixed in 6.24.0: 7.24.0 Patch available CNA
  • undici (npm) Vendor— Affected 7.17.0 to before 7.24.0 Fixed in 7.24.0 Patch available GHSA-phc3-fgpg-7m6h

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:nodejs:undici:*:*:*:*:*:node.js:*:*7.17.0 to before 7.24.0VulnerableNodeJS
  • cpe:2.3:a:nodejs:undici:*:*:*:*:*:node.js:*:* Versions 7.17.0 to before 7.24.0 Vulnerable ·NodeJS

Remediation

  • Fix · CNA undici (undici) Fixed in 6.24.0: 7.24.0
  • Fix · GHSA-phc3-fgpg-7m6h undici (npm) Fixed in 7.24.0 Advisory →

Red Hat 3 advisories

  • RHSA-2026:7670 Released 2026-04-13 · Red Hat rating Important
    nodejs:24 security update
    • Red Hat Enterprise Linux AppStream (v. 8) nodejs-1:24.14.1-2.module+el8.10.0+24190+49a46c75.aarch64::nodejs:24, nodejs-1:24.14.1-2.module+el8.10.0+24190+49a46c75.ppc64le::nodejs:24, nodejs-1:24.14.1-2.module+el8.10.0+24190+49a46c75.s390x::nodejs:24 +25
  • RHSA-2026:7675 Released 2026-04-13 · Red Hat rating Important
    nodejs24 security update
    • Red Hat Enterprise Linux AppStream (v. 10) nodejs24-1:24.14.1-2.el10_1, nodejs24-devel-1:24.14.1-2.el10_1, nodejs24-docs-1:24.14.1-2.el10_1 +3
  • RHSA-2026:7350 Released 2026-04-09 · Red Hat rating Important
    nodejs:24 security update
    • Red Hat Enterprise Linux AppStream (v. 9) nodejs-1:24.14.1-2.module+el9.7.0+24166+51c9666b.aarch64::nodejs:24, nodejs-1:24.14.1-2.module+el9.7.0+24166+51c9666b.ppc64le::nodejs:24, nodejs-1:24.14.1-2.module+el9.7.0+24166+51c9666b.s390x::nodejs:24 +25

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Cryostat 4AffectedNo fix yet: Fix deferred
OpenShift LightspeedAffectedNo fix yet: Fix deferred
OpenShift PipelinesAffectedNo fix yet: Fix deferred
Red Hat Developer Hub 1AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 10AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 8AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 9AffectedNo fix yet: Fix deferred
Red Hat JBoss Enterprise Application Platform 8AffectedNo fix yet: Fix deferred
Red Hat JBoss Enterprise Application Platform Expansion PackAffectedNo fix yet: Fix deferred
Red Hat OpenShift AI (RHOAI)AffectedNo fix yet: Fix deferred
Red Hat OpenShift Dev SpacesAffectedNo fix yet: Fix deferred
Self-service automation portal 2AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2026:7675
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2026:7670
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2026:7350

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-2581
  2. 2026-10-03 Alias added: GHSA-phc3-fgpg-7m6h
  3. 2026-10-25 EPSS moved to the below the 50th percentile
  4. 2026-10-27 Affected versions changed · Red Hat
  5. 2026-11-07 EPSS moved to the 50th–90th percentile

References

Advisory 3

Other 2

  • TI-2026-01215 undici is vulnerable to Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') CVSS 3.1CRITICAL 9.8
  • TI-2022-16376 `undici.request` vulnerable to SSRF using absolute URL on `pathname` CVSS 3.1CRITICAL 9.8
  • TI-2023-09734 CRLF Injection in Nodejs ‘undici’ via host CVSS 3.1MEDIUM 6.5
  • TI-2022-13193 CRLF injection in request headers CVSS 3.1MEDIUM 6.5
  • TI-2022-16375 CRLF Injection in Nodejs ‘undici’ via Content-Type CVSS 3.1MEDIUM 5.3
  • TI-2022-13194 Uncleared cookies on cross-host/cross-origin redirect in undici CVSS 3.1MEDIUM 6.5
See all 51 →

Sources

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