CVE-2021-22884

HIGH
7.5
CVSS Score
Published: March 3, 2021 at 05:37 PM UTC
Updated: June 17, 2026 at 03:37 AM UTC
13 products affected across 5 vendorsFedoraOnCommand InsightActive IQ Unified Manager

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Severity
HIGH7.5
Exploit prediction
EPSS 37%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions
All versions
10.0 ≤ v < 10.24.010.0.0 ≤ v < 10.24.011.0 ≤ v < 11.*12.0 ≤ v < 12.21.012.0.0 ≤ v < 12.21.013.0 ≤ v < 13.*14.0 ≤ v < 14.16.014.0.0 ≤ v < 14.16.015.0 ≤ v < 15.10.015.0.0 ≤ v < 15.10.04.0 ≤ v < 4.*5.0 ≤ v < 5.*6.0 ≤ v < 6.*7.0 ≤ v < 7.*8.0 ≤ v < 8.*9.0 ≤ v < 9.*10.011.012.013.014.015.04.05.06.07.08.09.0
Affected range stops below 10.24.0, so it looks safe — our inference, not a vendor statement
Affected range stops below 11.*, so it looks safe — our inference, not a vendor statement
Affected range stops below 12.21.0, so it looks safe — our inference, not a vendor statement
Affected range stops below 13.*, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.16.0, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.10.0, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.*, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.*, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.*, so it looks safe — our inference, not a vendor statement
Affected range stops below 7.*, so it looks safe — our inference, not a vendor statement
Affected range stops below 8.*, so it looks safe — our inference, not a vendor statement
Affected range stops below 9.*, so it looks safe — our inference, not a vendor statement
v < 9.2.6.0
Affected range stops below 9.2.6.0, so it looks safe — our inference, not a vendor statement
v ≤ 8.0.25

CVSS

Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-350NVD-CWE-Other

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