Information disclosure in Actions Http-Client
CVE-2020-11021
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.
Vulnerability class: Information Disclosure
EPSS: 0.017 (75.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N.
Affected products
- Actions Http-client — versions < 1.0.8
- Http-client_project Http-client
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
- security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2020-11021?
- CVE-2020-11021 is a medium-severity vulnerability in Actions Http-Client, classified under Information Disclosure. CVSS score: 6.3/10. Published 2020-04-29.
- How severe is CVE-2020-11021?
- Medium severity. CVSS v3 base score is 6.3 out of 10.
- Is CVE-2020-11021 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.