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ALPINE-CVE-2021-22884

ALPINE-CVE-2021-22884 PUBLISHED CVSS 7.5 HIGH

Node.js before 10.24.0, 12.21.0, 14.16.0, and 15.10.0 is vulnerable to DNS rebinding attacks as the whitelist includes “localhost6”. When “localhost6” is not present in /etc/hosts, it is just an ordinary domain that is resolved via DNS, i.e., over network. If the attacker controls the victim's DNS server or can spoof its responses, the DNS rebinding protection can be bypassed by using the “localhost6” domain. As long as the attacker uses the “localhost6” domain, they can still apply the attack described in CVE-2018-7160.

Risk Scores

CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Products

VendorProductVersions
Alpine:v3.22nodejs0, 0, 0
Alpine:v3.21nodejs0, 0, 0
Alpine:v3.17nodejs12.16.3-r0, 12.15.0-r2, 12.15.0-r1
Alpine:v3.24nodejs0, 0
Alpine:v3.12nodejs12.15.0-r2, 12.15.0-r1, 12.15.0-r0
Alpine:v3.19nodejs12.18.0-r1, 0, 10.13.0-r0
Alpine:v3.11nodejs0, 0, 8.9.4-r0
Alpine:v3.14nodejs8.11.4-r0, 8.11.3-r2, 8.11.3-r0
Alpine:v3.23nodejs0, 0, 0
Alpine:v3.18nodejs14.15.5-r0, 10.13.0-r0, 10.14.0-r0
Alpine:v3.13nodejs14.15.5-r0, 0, 10.13.0-r0
Alpine:v3.15nodejs10.14.0-r0, 0, 8.9.4-r0
Alpine:v3.16nodejs14.15.1-r0, 0, 0
Alpine:v3.20nodejs0, 10.13.0-r0, 10.14.0-r0

Timeline

  • Mar 3, 2021 CVE Published
  • Apr 30, 2026 Distribution Patch
  • Jun 15, 2026 CVE Updated
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