Security advisory
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2021-22880
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 07:29 UTC · Revision 1
Source evidence
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.
osv:CVE-2021-22880
Complete source record
{
"id": "484c1ff2f0beb7a37184103944510a990c3bae630de1a26dd14eddfeeee0b4a1",
"url": "https://osv.dev/vulnerability/CVE-2021-22880",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2021-22880",
"summary": "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.",
"evidence": "osv:CVE-2021-22880",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2021-22880",
"aliases": [
"CVE-2021-22880",
"GHSA-8hc4-xxm3-5ppp"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/rails/rails",
"type": "GIT",
"events": [
{
"introduced": "7847a19f476fb9bee287681586d872ea43785e53"
},
{
"fixed": "dc7364b1f39cf2fa3c3af3ea0f239f9ae1b5a790"
},
{
"introduced": "66cabeda2c46c582d19738e1318be8d59584cc5b"
},
{
"fixed": "c5929d5eb55b749bc124b3ccc2d79323d015701f"
},
{
"introduced": "914caca2d31bd753f47f9168f2a375921d9e91cc"
},
{
"fixed": "130c128eae233bf71231c73b9c3c3b3f3ede918b"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "4.2.0"
},
{
"fixed": "5.2.4.5"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "6.0.0"
},
{
"fixed": "6.0.3.5"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "6.1.0"
},
{
"fixed": "6.1.2.1"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"v6.1.2",
"v6.0.3.4",
"v6.1.1",
"v6.1.0",
"v6.0.3.3",
"v6.0.3.2",
"v6.0.3.1",
"v6.0.3",
"v6.0.3.rc1",
"v6.0.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-22880.json"
}
}
],
"modified": "2026-10-24T10:30:54.116293456Z",
"provider": "osv",
"references": [
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MO5OJ3F4ZL3UXVLJO6ECANRVZBNRS2IH/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XQ3NS4IBYE2I3MVMGAHFZBZBIZGHXHT3/",
"https://security.netapp.com/advisory/ntap-20210805-0009/",
"https://www.debian.org/security/2021/dsa-4929",
"https://discuss.rubyonrails.org/t/cve-2021-22880-possible-dos-vulnerability-in-active-record-postgresql-adapter/77129",
"https://hackerone.com/reports/1023899"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*",
"cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*"
],
"vendor_product": "fedoraproject:fedora",
"extracted_events": [
{
"range": [
{
"introduced": "32"
},
{
"last_affected": "32"
},
{
"introduced": "33"
},
{
"last_affected": "33"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2021-22880",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 438076,
"published_at": "2021-02-11T18:15:17.333+00:00"
}