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Vulnerability details: VCID-vcz9-dvf4-47am
Vulnerability ID VCID-vcz9-dvf4-47am
Aliases CVE-2020-25613
GHSA-gwfg-cqmg-cf8f
Summary Multiple vulnerabilities have been discovered in Ruby, the worst of which could lead to execution of arbitrary code.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-444 Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3 7.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-25613.json
epss 0.00271 https://api.first.org/data/v1/epss?cve=CVE-2020-25613
epss 0.00271 https://api.first.org/data/v1/epss?cve=CVE-2020-25613
epss 0.00271 https://api.first.org/data/v1/epss?cve=CVE-2020-25613
epss 0.00271 https://api.first.org/data/v1/epss?cve=CVE-2020-25613
epss 0.00271 https://api.first.org/data/v1/epss?cve=CVE-2020-25613
epss 0.00271 https://api.first.org/data/v1/epss?cve=CVE-2020-25613
epss 0.00271 https://api.first.org/data/v1/epss?cve=CVE-2020-25613
epss 0.00271 https://api.first.org/data/v1/epss?cve=CVE-2020-25613
epss 0.00271 https://api.first.org/data/v1/epss?cve=CVE-2020-25613
epss 0.00271 https://api.first.org/data/v1/epss?cve=CVE-2020-25613
epss 0.00271 https://api.first.org/data/v1/epss?cve=CVE-2020-25613
epss 0.00271 https://api.first.org/data/v1/epss?cve=CVE-2020-25613
epss 0.00271 https://api.first.org/data/v1/epss?cve=CVE-2020-25613
epss 0.00271 https://api.first.org/data/v1/epss?cve=CVE-2020-25613
epss 0.00271 https://api.first.org/data/v1/epss?cve=CVE-2020-25613
cvssv3.1 6.3 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-gwfg-cqmg-cf8f
cvssv3.1 7.5 https://github.com/rubysec/ruby-advisory-db/blob/master/gems/webrick/CVE-2020-25613.yml
generic_textual HIGH https://github.com/rubysec/ruby-advisory-db/blob/master/gems/webrick/CVE-2020-25613.yml
cvssv3.1 7.5 https://github.com/ruby/webrick
generic_textual HIGH https://github.com/ruby/webrick
cvssv3.1 7.5 https://github.com/ruby/webrick/commit/076ac636bf48b7a492887ce4de7041de23e6c00d
generic_textual HIGH https://github.com/ruby/webrick/commit/076ac636bf48b7a492887ce4de7041de23e6c00d
cvssv3.1 7.5 https://github.com/ruby/webrick/commit/7618049fa57ddad2efff2a7bc7dad7d2d8a311b1
generic_textual HIGH https://github.com/ruby/webrick/commit/7618049fa57ddad2efff2a7bc7dad7d2d8a311b1
cvssv3.1 7.5 https://github.com/ruby/webrick/commit/8946bb38b4d87549f0d99ed73c62c41933f97cc7
generic_textual HIGH https://github.com/ruby/webrick/commit/8946bb38b4d87549f0d99ed73c62c41933f97cc7
cvssv3.1 7.5 https://github.com/ruby/webrick/commit/af2efdcdf826f25592202d187c53963e7932e4b9
generic_textual HIGH https://github.com/ruby/webrick/commit/af2efdcdf826f25592202d187c53963e7932e4b9
cvssv3.1 7.5 https://hackerone.com/reports/965267
generic_textual HIGH https://hackerone.com/reports/965267
cvssv3.1 7.5 https://lists.debian.org/debian-lts-announce/2023/04/msg00033.html
generic_textual HIGH https://lists.debian.org/debian-lts-announce/2023/04/msg00033.html
cvssv3.1 7.5 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PFP3E7KXXT3H3KA6CBZPUOGA5VPFARRJ
generic_textual HIGH https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PFP3E7KXXT3H3KA6CBZPUOGA5VPFARRJ
cvssv3.1 7.5 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTZURYROG3FFED3TYCQOBV66BS4K6WOV
generic_textual HIGH https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTZURYROG3FFED3TYCQOBV66BS4K6WOV
cvssv3.1 7.5 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PFP3E7KXXT3H3KA6CBZPUOGA5VPFARRJ
generic_textual HIGH https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PFP3E7KXXT3H3KA6CBZPUOGA5VPFARRJ
cvssv3.1 7.5 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YTZURYROG3FFED3TYCQOBV66BS4K6WOV
generic_textual HIGH https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YTZURYROG3FFED3TYCQOBV66BS4K6WOV
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2020-25613
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2020-25613
cvssv3.1 7.5 https://security.gentoo.org/glsa/202401-27
generic_textual HIGH https://security.gentoo.org/glsa/202401-27
cvssv3.1 7.5 https://security.netapp.com/advisory/ntap-20210115-0008
generic_textual HIGH https://security.netapp.com/advisory/ntap-20210115-0008
cvssv3.1 7.5 https://www.ruby-lang.org/en/news/2020/09/29/http-request-smuggling-cve-2020-25613
generic_textual HIGH https://www.ruby-lang.org/en/news/2020/09/29/http-request-smuggling-cve-2020-25613
cvssv3 7.5 https://www.ruby-lang.org/en/news/2020/09/29/http-request-smuggling-cve-2020-25613/
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-25613.json
https://api.first.org/data/v1/epss?cve=CVE-2020-25613
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25613
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/webrick/CVE-2020-25613.yml
https://github.com/ruby/webrick
https://github.com/ruby/webrick/commit/076ac636bf48b7a492887ce4de7041de23e6c00d
https://github.com/ruby/webrick/commit/7618049fa57ddad2efff2a7bc7dad7d2d8a311b1
https://github.com/ruby/webrick/commit/8946bb38b4d87549f0d99ed73c62c41933f97cc7
https://github.com/ruby/webrick/commit/af2efdcdf826f25592202d187c53963e7932e4b9
https://hackerone.com/reports/965267
https://lists.debian.org/debian-lts-announce/2023/04/msg00033.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PFP3E7KXXT3H3KA6CBZPUOGA5VPFARRJ
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTZURYROG3FFED3TYCQOBV66BS4K6WOV
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PFP3E7KXXT3H3KA6CBZPUOGA5VPFARRJ
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YTZURYROG3FFED3TYCQOBV66BS4K6WOV
https://nvd.nist.gov/vuln/detail/CVE-2020-25613
https://security.gentoo.org/glsa/202401-27
https://security.netapp.com/advisory/ntap-20210115-0008
https://www.ruby-lang.org/en/news/2020/09/29/http-request-smuggling-cve-2020-25613
https://www.ruby-lang.org/en/news/2020/09/29/http-request-smuggling-cve-2020-25613/
1883623 https://bugzilla.redhat.com/show_bug.cgi?id=1883623
972230 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=972230
GHSA-gwfg-cqmg-cf8f https://github.com/advisories/GHSA-gwfg-cqmg-cf8f
RHSA-2021:2104 https://access.redhat.com/errata/RHSA-2021:2104
RHSA-2021:2229 https://access.redhat.com/errata/RHSA-2021:2229
RHSA-2021:2230 https://access.redhat.com/errata/RHSA-2021:2230
RHSA-2021:2584 https://access.redhat.com/errata/RHSA-2021:2584
RHSA-2021:2587 https://access.redhat.com/errata/RHSA-2021:2587
RHSA-2021:2588 https://access.redhat.com/errata/RHSA-2021:2588
RHSA-2022:0581 https://access.redhat.com/errata/RHSA-2022:0581
RHSA-2022:0582 https://access.redhat.com/errata/RHSA-2022:0582
RHSA-2026:7305 https://access.redhat.com/errata/RHSA-2026:7305
RHSA-2026:7307 https://access.redhat.com/errata/RHSA-2026:7307
RHSA-2026:8838 https://access.redhat.com/errata/RHSA-2026:8838
USN-4882-1 https://usn.ubuntu.com/4882-1/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-25613.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

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required

unchanged

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Vector: CVSS:3.1/AV:N/AC:H/PR:L/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

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://github.com/rubysec/ruby-advisory-db/blob/master/gems/webrick/CVE-2020-25613.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

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://github.com/ruby/webrick
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

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required

unchanged

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://github.com/ruby/webrick/commit/076ac636bf48b7a492887ce4de7041de23e6c00d
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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required

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://github.com/ruby/webrick/commit/7618049fa57ddad2efff2a7bc7dad7d2d8a311b1
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

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required

unchanged

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://github.com/ruby/webrick/commit/8946bb38b4d87549f0d99ed73c62c41933f97cc7
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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required

unchanged

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://github.com/ruby/webrick/commit/af2efdcdf826f25592202d187c53963e7932e4b9
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

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required

unchanged

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://hackerone.com/reports/965267
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

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required

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://lists.debian.org/debian-lts-announce/2023/04/msg00033.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

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required

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PFP3E7KXXT3H3KA6CBZPUOGA5VPFARRJ
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

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required

unchanged

changed

high

low

none

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low

none

high

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTZURYROG3FFED3TYCQOBV66BS4K6WOV
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

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none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PFP3E7KXXT3H3KA6CBZPUOGA5VPFARRJ
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:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YTZURYROG3FFED3TYCQOBV66BS4K6WOV
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:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-25613
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:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://security.gentoo.org/glsa/202401-27
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:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://security.netapp.com/advisory/ntap-20210115-0008
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:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://www.ruby-lang.org/en/news/2020/09/29/http-request-smuggling-cve-2020-25613
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

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low

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required

unchanged

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Exploit Prediction Scoring System (EPSS)
Percentile 0.50487
EPSS Score 0.00271
Published At April 1, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T13:01:48.960218+00:00 Gentoo Importer Import https://security.gentoo.org/glsa/202401-27 38.0.0