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Vulnerability details: VCID-s21w-r5mn-s7e9
Vulnerability ID VCID-s21w-r5mn-s7e9
Aliases CVE-2020-11077
GHSA-w64w-qqph-5gxm
Summary
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-444 Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
System Score Found at
cvssv3.1 6.8 http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00034.html
generic_textual MODERATE http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00034.html
cvssv3.1 6.8 http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00038.html
generic_textual MODERATE http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00038.html
epss 0.00821 https://api.first.org/data/v1/epss?cve=CVE-2020-11077
cvssv3.1 6.8 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-w64w-qqph-5gxm
cvssv3.1 6.8 https://github.com/puma/puma
generic_textual MODERATE https://github.com/puma/puma
cvssv3.1 6.8 https://github.com/puma/puma/blob/master/History.md#434435-and-31253126--2020-05-22
generic_textual MODERATE https://github.com/puma/puma/blob/master/History.md#434435-and-31253126--2020-05-22
cvssv3 6.8 https://github.com/puma/puma/security/advisories/GHSA-w64w-qqph-5gxm
cvssv3.1 6.8 https://github.com/puma/puma/security/advisories/GHSA-w64w-qqph-5gxm
cvssv3.1_qr MODERATE https://github.com/puma/puma/security/advisories/GHSA-w64w-qqph-5gxm
generic_textual MODERATE https://github.com/puma/puma/security/advisories/GHSA-w64w-qqph-5gxm
cvssv3.1 6.8 https://github.com/rubysec/ruby-advisory-db/blob/master/gems/puma/CVE-2020-11077.yml
generic_textual MODERATE https://github.com/rubysec/ruby-advisory-db/blob/master/gems/puma/CVE-2020-11077.yml
cvssv3.1 6.8 https://lists.debian.org/debian-lts-announce/2020/10/msg00009.html
generic_textual MODERATE https://lists.debian.org/debian-lts-announce/2020/10/msg00009.html
cvssv3.1 6.8 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SKIY5H67GJIGJL6SMFWFLUQQQR3EMVPR
generic_textual MODERATE https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SKIY5H67GJIGJL6SMFWFLUQQQR3EMVPR
cvssv3.1 6.8 https://nvd.nist.gov/vuln/detail/CVE-2020-11077
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2020-11077
Reference id Reference type URL
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00034.html
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00038.html
https://api.first.org/data/v1/epss?cve=CVE-2020-11077
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://github.com/puma/puma
https://github.com/puma/puma/blob/master/History.md#434435-and-31253126--2020-05-22
https://lists.debian.org/debian-lts-announce/2020/10/msg00009.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SKIY5H67GJIGJL6SMFWFLUQQQR3EMVPR
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SKIY5H67GJIGJL6SMFWFLUQQQR3EMVPR/
972102 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=972102
CVE-2020-11077 https://nvd.nist.gov/vuln/detail/CVE-2020-11077
CVE-2020-11077.YML https://github.com/rubysec/ruby-advisory-db/blob/master/gems/puma/CVE-2020-11077.yml
GHSA-w64w-qqph-5gxm https://github.com/advisories/GHSA-w64w-qqph-5gxm
GHSA-w64w-qqph-5gxm https://github.com/puma/puma/security/advisories/GHSA-w64w-qqph-5gxm
USN-6682-1 https://usn.ubuntu.com/6682-1/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N Found at http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00034.html
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

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none

required

unchanged

changed

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none

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none

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none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N Found at http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00038.html
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

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none

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low

none

high

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none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N 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

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low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N Found at https://github.com/puma/puma
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:C/C:N/I:H/A:N Found at https://github.com/puma/puma/blob/master/History.md#434435-and-31253126--2020-05-22
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:C/C:N/I:H/A:N Found at https://github.com/puma/puma/security/advisories/GHSA-w64w-qqph-5gxm
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:C/C:N/I:H/A:N Found at https://github.com/rubysec/ruby-advisory-db/blob/master/gems/puma/CVE-2020-11077.yml
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:C/C:N/I:H/A:N Found at https://lists.debian.org/debian-lts-announce/2020/10/msg00009.html
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:C/C:N/I:H/A:N Found at https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SKIY5H67GJIGJL6SMFWFLUQQQR3EMVPR
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:C/C:N/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-11077
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 0.74703
EPSS Score 0.00821
Published At May 30, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-05-30T21:59:54.794298+00:00 EPSS Importer Import https://epss.cyentia.com/epss_scores-current.csv.gz 38.6.0