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CVE-2020-8201

27
FAUCET Score

CVE-2020-8201 describes a high-severity vulnerability in Node.js versions prior to 12.18.4 and 14.11, affecting various Fedora and openSUSE distributions. This flaw, rooted in improper handling of carrier-return symbols in HTTP header names (CWE-444), allows attackers to perform HTTP desync attacks. Such attacks can lead to session hijacking, cookie poisoning, and clickjacking, with a CVSS score of 7.4 (High) due to high impact on confidentiality and integrity, despite high attack complexity. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 12.0.0, < 12.18.4CPE matchmatch criteria
cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:*
>= 14.0.0, < 14.11.0CPE matchmatch criteria
cpe:2.3:a:nodejs:node.js:*:*:*:*:*:*:*:*
15.2CPE matchmatch criteria
cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*
33CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
>= 12.0, < 12.18.4CPE match
cpe:2.3:a:nodejs:node.js:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.4HIGH

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
5.09%
Probability of exploitation in next 30 days
EPSS Percentile
91.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0509 is in the 60th percentile among its peer group of 8,918 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (7)

redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUSFixed in: rh-nodejs12-nodejs-0:12.18.4-3.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.1 Extended Update SupportFixed in: nodejs:12-8010020201006223055.c27ad7f8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-nodejs12-nodejs-0:12.18.4-3.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: nodejs:12-8020020201007080935.4cda2c84
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUSFixed in: rh-nodejs12-nodejs-0:12.18.4-3.el7
View patch
redhatvendor investigatingvia redhat_api
Product: Red Hat Quay 3Fixed in: quay
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: nodejs:14/nodejs

Vendor Advisories (1)

redhatCVE-2020-8201Moderate

nodejs: HTTP request smuggling due to CR-to-Hyphen conversion

Sep 15, 2020

References

lists.opensuse.org / opensuse-security-announce/2020-10/msg00011.html
Third Party Advisory
hackerone.com / reports/922597
Permissions Required
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6
nodejs.org / en/blog/vulnerability/september-2020-security-releases
Vendor Advisory
security.gentoo.org / glsa/202101-07
Third Party Advisory
security.netapp.com / advisory/ntap-20201009-0004
Third Party Advisory