CVE-2020-11021

HTTP request which redirect to another hostname do not strip authorization header in Actions Http-Client

HIGH
7.5
CVSS Score
Published: April 29, 2020 at 06:00 PM UTC
Updated: June 17, 2026 at 02:48 AM UTC
2 products affected across 2 vendorsHTTP ClientClient Project HTTP Client

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Severity
HIGH7.5
Exploit prediction
EPSS 2%

Description

Actions Http-Client (NPM @actions/http-client) before version 1.0.8 can disclose Authorization headers to incorrect domain in certain redirect scenarios. The conditions in which this happens are if consumers of the http-client: 1. make an http request with an authorization header 2. that request leads to a redirect (302) and 3. the redirect url redirects to another domain or hostname Then the authorization header will get passed to the other domain. The problem is fixed in version 1.0.8.

Affected

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

v < 1.0.8
Affected range stops below 1.0.8, so it looks safe — our inference, not a vendor statement
v < 1.0.8
Affected range stops below 1.0.8, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

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

Quick Info

StatusMODIFIED
CWE
CWE-200NVD-CWE-noinfo

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