CVE-2021-22960: XSS
First published: Tue Oct 12 2021(Updated: )
Node.js is vulnerable to HTTP request smuggling, caused by an error when parsing the body of chunked requests. A remote attacker could send a specially-crafted request to lead to HTTP Request Smuggling (HRS). An attacker could exploit this vulnerability to poison the web cache, bypass web application firewall protection, and conduct XSS attacks.
Credit: support@hackerone.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/llhttp | <6.0.6 | 6.0.6 |
| redhat/llhttp | <2.1.4 | 2.1.4 |
| redhat/node | <12.22.7 | 12.22.7 |
| redhat/node | <14.18.1 | 14.18.1 |
| redhat/node | <16.11.1 | 16.11.1 |
| redhat/rh-nodejs14-nodejs | <0:14.18.2-1.el7 | 0:14.18.2-1.el7 |
| redhat/rh-nodejs14-nodejs-nodemon | <0:2.0.3-6.el7 | 0:2.0.3-6.el7 |
| redhat/rh-nodejs12-nodejs | <0:12.22.12-2.el7 | 0:12.22.12-2.el7 |
| Llhttp Llhttp | <2.1.4 | |
| Llhttp Llhttp | >=3.0.0<6.0.6 | |
| Oracle GraalVM | =20.3.4 | |
| Oracle GraalVM | =21.3.0 | |
| Debian Debian Linux | =11.0 | |
| debian/nodejs | 10.24.0~dfsg-1~deb10u1 10.24.0~dfsg-1~deb10u3 12.22.12~dfsg-1~deb11u4 18.13.0+dfsg1-1 |
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2021-22960 https://nvd.nist.gov/vuln/detail/CVE-2021-22960 https://nodejs.org/en/blog/vulnerability/oct-2021-security-releases/
- https://bugzilla.redhat.com/show_bug.cgi?id=2014059
- https://access.redhat.com/errata/RHEA-2022:5139
- https://access.redhat.com/errata/RHSA-2021:5171
- https://access.redhat.com/errata/RHSA-2022:0350
- https://access.redhat.com/errata/RHEA-2022:4925
- https://access.redhat.com/errata/RHEA-2022:5221
- https://access.redhat.com/errata/RHEA-2022:5615
- https://access.redhat.com/errata/RHSA-2022:0246
- https://access.redhat.com/errata/RHSA-2022:0041
- https://access.redhat.com/errata/RHSA-2022:4914
- https://access.redhat.com/security/cve/cve-2021-22960
- https://hackerone.com/reports/1238099
- https://www.debian.org/security/2022/dsa-5170
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://github.com/nodejs/node/commit/657fb9a77ca36f729da484f55899dad7a13759b0
- https://github.com/nodejs/node/commit/21a2e554e3eaa325abbdb28f366928d0ccc0a0f0
- https://nodejs.org/en/blog/vulnerability/oct-2021-security-releases/#http-request-smuggling-when-parsing-the-body-medium-cve-2021-22960
- https://security-tracker.debian.org/tracker/CVE-2021-22960
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2014066
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2014109
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2014110
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2014111
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2014112
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2014113
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2014114
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2014115
- https://hackerone.com/reports/1238709
- https://github.com/nodejs/node/commit/8c254ca7e4693fb778d808fa835b095de6c9fdd4
- https://github.com/nodejs/node/commit/af488f8dc82d69847992ea1cd2f53dc8082b3b91
- https://github.com/nodejs/llhttp/commit/b069a2ba7d6caada9b1a1d99a511ce4631b02ed1
- https://github.com/nodejs/llhttp/commit/a835370c29ce7c793bd2cb40cacf626d18669371
- https://exchange.xforce.ibmcloud.com/vulnerabilities/211171
- https://www.ibm.com/support/pages/node/6517470 (Advisory)
Parent vulnerabilities
(Appears in the following advisories)
Frequently Asked Questions
What is CVE-2021-22960?
CVE-2021-22960 is an HTTP Request Smuggling (HRS) vulnerability in the llhttp library used by Node.JS.
How does CVE-2021-22960 affect the llhttp library?
CVE-2021-22960 affects versions of llhttp prior to 2.1.4 and 6.0.6, where the parse function ignores chunk extensions when parsing the body of chunked messages.
What is the severity of CVE-2021-22960?
CVE-2021-22960 has a severity value of 6.1, which is considered medium.
Which software packages are affected by CVE-2021-22960?
CVE-2021-22960 affects the following software packages: rh-nodejs14-nodejs, rh-nodejs14-nodejs-nodemon, rh-nodejs12-nodejs, llhttp, node.
How can I fix CVE-2021-22960?
To fix CVE-2021-22960, upgrade to llhttp version 2.1.4 or 6.0.6, or update the affected software packages to the recommended versions.
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