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Vulnerability details: VCID-3fmh-tfy5-sfdy
Vulnerability ID VCID-3fmh-tfy5-sfdy
Aliases CVE-2020-8201
Summary 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.
Status Published
Exploitability 0.5
Weighted Severity 6.7
Risk 3.4
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-444 Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
System Score Found at
cvssv3 7.4 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-8201.json
epss 0.01146 https://api.first.org/data/v1/epss?cve=CVE-2020-8201
epss 0.01146 https://api.first.org/data/v1/epss?cve=CVE-2020-8201
epss 0.01146 https://api.first.org/data/v1/epss?cve=CVE-2020-8201
epss 0.01408 https://api.first.org/data/v1/epss?cve=CVE-2020-8201
epss 0.01408 https://api.first.org/data/v1/epss?cve=CVE-2020-8201
epss 0.01408 https://api.first.org/data/v1/epss?cve=CVE-2020-8201
epss 0.01408 https://api.first.org/data/v1/epss?cve=CVE-2020-8201
epss 0.01408 https://api.first.org/data/v1/epss?cve=CVE-2020-8201
epss 0.01408 https://api.first.org/data/v1/epss?cve=CVE-2020-8201
epss 0.01408 https://api.first.org/data/v1/epss?cve=CVE-2020-8201
epss 0.01408 https://api.first.org/data/v1/epss?cve=CVE-2020-8201
epss 0.01408 https://api.first.org/data/v1/epss?cve=CVE-2020-8201
epss 0.01408 https://api.first.org/data/v1/epss?cve=CVE-2020-8201
epss 0.01408 https://api.first.org/data/v1/epss?cve=CVE-2020-8201
epss 0.01408 https://api.first.org/data/v1/epss?cve=CVE-2020-8201
epss 0.01532 https://api.first.org/data/v1/epss?cve=CVE-2020-8201
cvssv3.1 5.6 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 5.8 https://nvd.nist.gov/vuln/detail/CVE-2020-8201
cvssv3.1 7.4 https://nvd.nist.gov/vuln/detail/CVE-2020-8201
Reference id Reference type URL
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00011.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-8201.json
https://api.first.org/data/v1/epss?cve=CVE-2020-8201
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8201
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://hackerone.com/reports/922597
https://nodejs.org/en/blog/vulnerability/september-2020-security-releases/
https://security.gentoo.org/glsa/202101-07
https://security.netapp.com/advisory/ntap-20201009-0004/
1879311 https://bugzilla.redhat.com/show_bug.cgi?id=1879311
cpe:2.3:a:nodejs:node.js:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:nodejs:node.js:*:*:*:*:*:*:*:*
cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:*
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*
CVE-2020-8201 https://nvd.nist.gov/vuln/detail/CVE-2020-8201
RHSA-2020:4272 https://access.redhat.com/errata/RHSA-2020:4272
RHSA-2020:4903 https://access.redhat.com/errata/RHSA-2020:4903
RHSA-2020:5086 https://access.redhat.com/errata/RHSA-2020:5086
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-8201.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-8201
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-8201
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.77681
EPSS Score 0.01146
Published At Aug. 1, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:32:30.126713+00:00 Alpine Linux Importer Import https://secdb.alpinelinux.org/v3.22/main.json 37.0.0