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CVE-2020-8201

HIGH
7.4
CVSS Score
Published: September 18, 2020 at 08:12 PM UTC
Updated: June 17, 2026 at 03:26 AM UTC
3 products affected across 3 vendorsFedoraLeapNode.js

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Severity
HIGH7.4
Exploit prediction
EPSS 5%

Description

Node.js < 12.18.4 and < 14.11 can be exploited to perform HTTP desync attacks and deliver malicious payloads to unsuspecting users. The payloads can be crafted by an attacker to hijack user sessions, poison cookies, perform clickjacking, and a multitude of other attacks depending on the architecture of the underlying system. The attack was possible due to a bug in processing of carrier-return symbols in the HTTP header names.

Affected

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

Fedora· Fedora Projectrpm
95%
33
Node.js· Node.js
95%
11.0 ≤ v < 11.*12.0 ≤ v < 12.18.412.0.0 ≤ v < 12.18.413.0 ≤ v < 13.*14.0 ≤ v < 14.11.014.0.0 ≤ v < 14.11.04.0 ≤ v < 4.*5.0 ≤ v < 5.*6.0 ≤ v < 6.*7.0 ≤ v < 7.*8.0 ≤ v < 8.*9.0 ≤ v < 9.*11.012.013.014.04.05.06.07.08.09.0
Affected range stops below 11.*, so it looks safe — our inference, not a vendor statement
Affected range stops below 12.18.4, 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 14.11.0, 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
Leap· openSUSEdrupal
95%
15.2

References (6)

Vendor Advisoryx_refsource_SUSEThird Party Advisory
Source: [email protected]
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00011.html
x_refsource_MISCPermissions Required
Source: [email protected]
https://hackerone.com/reports/922597
Vendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/
x_refsource_MISCVendor Advisory
Source: [email protected]
https://nodejs.org/en/blog/vulnerability/september-2020-security-releases/
Vendor Advisoryx_refsource_GENTOOThird Party Advisory
Source: [email protected]
https://security.gentoo.org/glsa/202101-07
x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://security.netapp.com/advisory/ntap-20201009-0004/

CVSS

7.4HIGH[email protected]
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-444

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