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Fencer Vulns
medium 6.5

CVE-2026-105481 json

A flaw in Node.js HTTP Agent connection reuse can cause a client to accept as valid a response that was sent before the client has sent the…

published 2026-10-23 16 d ago modified 2026-11-02 6 d ago also BIT-node-2026-105481 , BIT-node-min-2026-105481 , EUVD-2026-109106

cvss
6.5
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 24%
public exploits
0
none known

Summary

A flaw in Node.js HTTP Agent connection reuse can cause a client to accept as valid a response that was sent before the client has sent the request. This is an incomplete fix of CVE-2026-48931.

The guard that destroys idle keep-alive sockets when unexpected data arrives only runs when the event loop polls for I/O. If an unsolicited response has already reached the socket but has not been read yet when the socket is handed to a new request, for example because the event loop was busy with synchronous work, the guard is removed without seeing it and the data is parsed as the response to the new request.

This vulnerability affects Node.js **26.x**, **24.x**, and **22.x**.

Patch / fix

  • bitnami node 22.23.4, 24.22.1, 26.12.1
  • bitnami node-min 22.23.4, 24.22.1, 26.12.1
  • nodejs node.js 22.23.4, 24.22.1, 26.12.1
  • nodejs24 SLE Module for Web and Scripting 15 SP7 24.22.1-150700.15.21.1
  • nodejs22 SLE Module for Web and Scripting 15 SP7 22.23.4-150700.3.21.1
  • nodejs22 SLES for SAP 15 SP6, SLES 15 SP6-LTSS 22.23.4-150600.13.27.1

suse advisories SUSE-SU-2026:5037-1SUSE-SU-2026:5036-1SUSE-SU-2026:4957-1

  • nodejs22 openSUSE Leap 16.0 22.23.4-160000.1.1
  • nodejs24 openSUSE Tumbleweed 24.22.1-1.1

opensuse advisories openSUSE-SU-2026:22210-1openSUSE-SU-2026:12248-1

  • npm AlmaLinux 8 1:11.19.1-1.24.22.1.1.module_el8.10.0+4331+0683c9c1
  • nodejs AlmaLinux 8 1:24.22.1-1.module_el8.10.0+4331+0683c9c1
  • nodejs-libs AlmaLinux 8 1:24.22.1-1.module_el8.10.0+4331+0683c9c1
  • nodejs-nodemon AlmaLinux 8 3.1.14-2.module_el8.10.0+4250+09238ed4
  • nodejs-full-i18n AlmaLinux 8 1:24.22.1-1.module_el8.10.0+4331+0683c9c1
  • nodejs-packaging AlmaLinux 8 2021.06-6.module_el8.10.0+4086+70facd4a
  • nodejs-packaging-bundler AlmaLinux 8 2021.06-6.module_el8.10.0+4086+70facd4a
  • npm AlmaLinux 9 1:11.19.1-1.24.22.1.3.module_el9.8.0+333+788f3075

almalinux advisories ALSA-2026:92376ALSA-2026:92378

  • nodejs Rocky Linux 9 1:24.22.1-3.module+el9.8.0+40401+e24b8c95
  • nodejs-nodemon Rocky Linux 9 3.1.14-3.module+el9.8.0+40281+14cc6568
  • nodejs-packaging Rocky Linux 9 2021.06-6.module+el9.7.0+40165+d075e3f2
  • nodejs-packaging Rocky Linux 9 2021.06-6.module+el9.8.0+40164+8921ab53
  • nodejs-packaging Rocky Linux 9 2021.06-6.module+el9.7.0+40052+e32ea525
  • nodejs-packaging Rocky Linux 9 2021.06-6.module+el9.7.0+40153+4d595597
  • nodejs-nodemon Rocky Linux 8 3.1.14-2.module+el8.10.0+40277+b1b3f89e
  • nodejs-nodemon Rocky Linux 8 3.1.14-2.module+el8.10.0+40278+50b003a3

rocky linux advisories RLSA-2026:92378RLSA-2026:92376

  • nodejs Alpine 3.22, Alpine 3.21 22.23.4-r0
  • nodejs Alpine 3.24, Alpine 3.23 24.22.1-r0
  • nodejs-current Alpine 3.24 26.12.1-r0

alpine advisories ALPINE-CVE-2026-105481

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • nodejs Azure Linux 3.0 24.22.1-0

azure linux advisories AZL-111056

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-105481 updated cvss 6.5

nodejs: nodejs: Response desynchronization via improper HTTP keep-alive connection reuse

  • Red Hat Enterprise Linux 8 npm, nodejs, nodejs-libs, nodejs-nodemon, nodejs-full-i18n, nodejs-packaging, +1 more Red Hat Enterprise Linux 9 npm, nodejs, nodejs-libs, nodejs-full-i18n Red Hat Enterprise Linux 10 nodejs22, nodejs24, nodejs26
    affected: workaround, no fix available “Fix deferred”
  • Red Hat Enterprise Linux AppStream (v. 8) nodejs 24.22.1-1.module+el8.10.0+25218+d9e131cb, nodejs-libs 24.22.1-1.module+el8.10.0+25218+d9e131cb, nodejs-nodemon 3.1.14-2.module+el8.10.0+24711+b610b202, npm 11.19.1-1.24.22.1.1.module+el8.10.0+25218+d9e131cb, nodejs-full-i18n 24.22.1-1.module+el8.10.0+25218+d9e131cb, nodejs-packaging 2021.06-6.module+el8.10.0+24711+b610b202, +1 more
    fixed: vendor fix RHSA-2026:92376
  • Red Hat Enterprise Linux AppStream (v. 9) nodejs 24.22.1-3.module+el9.8.0+25216+afa2a4a4, nodejs-libs 24.22.1-3.module+el9.8.0+25216+afa2a4a4, nodejs-nodemon 3.1.14-3.module+el9.8.0+24708+e71d2e1d, npm 11.19.1-1.24.22.1.3.module+el9.8.0+25216+afa2a4a4, nodejs-full-i18n 24.22.1-3.module+el9.8.0+25216+afa2a4a4, nodejs-packaging 2021.06-6.module+el9.8.0+24708+e71d2e1d, +1 more
    fixed: vendor fix RHSA-2026:92378
  • Red Hat Hardened Images nodejs20, nodejs22, nodejs24, nodejs25, nodejs26, hi/nodejs
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
6 d ago

Exploit prediction

0.32% chance of exploitation in the next 30 days, higher than 24% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.0 6.5 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
OSV 3.0 6.5 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N

Affected packages

ecosystem package affected fixed in
bitnami node
<22.23.4
>=23.0.0, <24.22.1
>=25.0.0, <26.12.1
22.23.4
24.22.1
26.12.1
bitnami node-min
<22.23.4
>=23.0.0, <24.22.1
>=25.0.0, <26.12.1
22.23.4
24.22.1
26.12.1

Affected products

  • nodejs node

Classification

Weakness
  • CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.