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Vulnerability details: VCID-5qu2-b8gt-7qe3
Vulnerability ID VCID-5qu2-b8gt-7qe3
Aliases CVE-2021-22880
GHSA-8hc4-xxm3-5ppp
Summary Active Record subject to Regular Expression Denial-of-Service (ReDoS) The PostgreSQL adapter in Active Record before 6.1.2.1, 6.0.3.5, 5.2.4.5 suffers from a regular expression denial of service (REDoS) vulnerability. Carefully crafted input can cause the input validation in the `money` type of the PostgreSQL adapter in Active Record to spend too much time in a regular expression, resulting in the potential for a DoS attack. This only impacts Rails applications that are using PostgreSQL along with money type columns that take user input.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-400 Uncontrolled Resource Consumption
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3 7.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-22880.json
epss 0.02459 https://api.first.org/data/v1/epss?cve=CVE-2021-22880
epss 0.02459 https://api.first.org/data/v1/epss?cve=CVE-2021-22880
epss 0.02459 https://api.first.org/data/v1/epss?cve=CVE-2021-22880
epss 0.02459 https://api.first.org/data/v1/epss?cve=CVE-2021-22880
epss 0.02459 https://api.first.org/data/v1/epss?cve=CVE-2021-22880
epss 0.02459 https://api.first.org/data/v1/epss?cve=CVE-2021-22880
epss 0.02599 https://api.first.org/data/v1/epss?cve=CVE-2021-22880
epss 0.02599 https://api.first.org/data/v1/epss?cve=CVE-2021-22880
epss 0.02599 https://api.first.org/data/v1/epss?cve=CVE-2021-22880
cvssv3.1 7.5 https://discuss.rubyonrails.org/t/cve-2021-22880-possible-dos-vulnerability-in-active-record-postgresql-adapter/77129
generic_textual HIGH https://discuss.rubyonrails.org/t/cve-2021-22880-possible-dos-vulnerability-in-active-record-postgresql-adapter/77129
cvssv3.1 5.3 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-8hc4-xxm3-5ppp
cvssv3.1 7.5 https://github.com/rails/rails
generic_textual HIGH https://github.com/rails/rails
cvssv3.1 7.5 https://github.com/rubysec/ruby-advisory-db/blob/master/gems/activerecord/CVE-2021-22880.yml
generic_textual HIGH https://github.com/rubysec/ruby-advisory-db/blob/master/gems/activerecord/CVE-2021-22880.yml
cvssv3 5.3 https://groups.google.com/g/rubyonrails-security/c/ZzUqCh9vyhI
cvssv3.1 7.5 https://groups.google.com/g/rubyonrails-security/c/ZzUqCh9vyhI
generic_textual HIGH https://groups.google.com/g/rubyonrails-security/c/ZzUqCh9vyhI
cvssv3.1 7.5 https://hackerone.com/reports/1023899
generic_textual HIGH https://hackerone.com/reports/1023899
cvssv3.1 7.5 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MO5OJ3F4ZL3UXVLJO6ECANRVZBNRS2IH
generic_textual HIGH https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MO5OJ3F4ZL3UXVLJO6ECANRVZBNRS2IH
cvssv3.1 7.5 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XQ3NS4IBYE2I3MVMGAHFZBZBIZGHXHT3
generic_textual HIGH https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XQ3NS4IBYE2I3MVMGAHFZBZBIZGHXHT3
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2021-22880
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2021-22880
cvssv3.1 7.5 https://security.netapp.com/advisory/ntap-20210805-0009
generic_textual HIGH https://security.netapp.com/advisory/ntap-20210805-0009
cvssv3.1 7.5 https://www.debian.org/security/2021/dsa-4929
generic_textual HIGH https://www.debian.org/security/2021/dsa-4929
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-22880.json
https://api.first.org/data/v1/epss?cve=CVE-2021-22880
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-22880
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-22885
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-22904
https://discuss.rubyonrails.org/t/cve-2021-22880-possible-dos-vulnerability-in-active-record-postgresql-adapter/77129
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://github.com/rails/rails
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/activerecord/CVE-2021-22880.yml
https://groups.google.com/g/rubyonrails-security/c/ZzUqCh9vyhI
https://hackerone.com/reports/1023899
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MO5OJ3F4ZL3UXVLJO6ECANRVZBNRS2IH
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MO5OJ3F4ZL3UXVLJO6ECANRVZBNRS2IH/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XQ3NS4IBYE2I3MVMGAHFZBZBIZGHXHT3
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XQ3NS4IBYE2I3MVMGAHFZBZBIZGHXHT3/
https://nvd.nist.gov/vuln/detail/CVE-2021-22880
https://security.netapp.com/advisory/ntap-20210805-0009
https://security.netapp.com/advisory/ntap-20210805-0009/
https://www.debian.org/security/2021/dsa-4929
1930102 https://bugzilla.redhat.com/show_bug.cgi?id=1930102
GHSA-8hc4-xxm3-5ppp https://github.com/advisories/GHSA-8hc4-xxm3-5ppp
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-22880.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://discuss.rubyonrails.org/t/cve-2021-22880-possible-dos-vulnerability-in-active-record-postgresql-adapter/77129
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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)

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/rails/rails
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/rubysec/ruby-advisory-db/blob/master/gems/activerecord/CVE-2021-22880.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:N/A:H Found at https://groups.google.com/g/rubyonrails-security/c/ZzUqCh9vyhI
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:N/A:H Found at https://hackerone.com/reports/1023899
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:N/A:H Found at https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MO5OJ3F4ZL3UXVLJO6ECANRVZBNRS2IH
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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unchanged

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XQ3NS4IBYE2I3MVMGAHFZBZBIZGHXHT3
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:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2021-22880
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

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://security.netapp.com/advisory/ntap-20210805-0009
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:N/A:H Found at https://www.debian.org/security/2021/dsa-4929
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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none

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unchanged

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Exploit Prediction Scoring System (EPSS)
Percentile 0.85168
EPSS Score 0.02459
Published At April 1, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T13:01:53.322152+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/03/GHSA-8hc4-xxm3-5ppp/GHSA-8hc4-xxm3-5ppp.json 38.0.0