Medium
Security advisory
A NULL Pointer Dereference in match_at() in regexec.c in Oniguruma 6.9.2 allows attackers to potentially cause denial of service by providing a crafted regular expression. Oniguruma issues often affect Ruby, as well as common optional libraries for PHP and Rust.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2019-13225
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 12:33 UTC · Revision 1
Source evidence
A NULL Pointer Dereference in match_at() in regexec.c in Oniguruma 6.9.2 allows attackers to potentially cause denial of service by providing a crafted regular expression. Oniguruma issues often affect Ruby, as well as common optional libraries for PHP and Rust.
osv:CVE-2019-13225
Complete source record
{
"id": "60be1195c85d6706e6c789ca3ee7b37709e763f36d0342b7c31a49b1b8964f09",
"url": "https://osv.dev/vulnerability/CVE-2019-13225",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2019-13225",
"summary": "A NULL Pointer Dereference in match_at() in regexec.c in Oniguruma 6.9.2 allows attackers to potentially cause denial of service by providing a crafted regular expression. Oniguruma issues often affect Ruby, as well as common optional libraries for PHP and Rust.",
"evidence": "osv:CVE-2019-13225",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2019-13225",
"aliases": [
"CVE-2019-13225"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
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"repo": "https://github.com/kkos/oniguruma",
"type": "GIT",
"events": [
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{
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},
{
"fixed": "c509265c5f6ae7264f7b8a8aae1cfa5fc59d108c"
}
],
"database_specific": {
"extracted_events": [
{
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"range": [
{
"introduced": "6.9.2-NA"
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{
"last_affected": "6.9.2-NA"
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"source": "CPE_STRING"
},
{
"range": [
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],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
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"v6.9.2_rc3",
"v6.9.2"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-13225.json",
"vanir_signatures": [
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"signature_type": "Line",
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{
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"modified": "2026-10-20T13:47:40.496122761Z",
"provider": "osv",
"references": [
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JWCPDTZOIUKGMFAD5NAKUB7FPJFAIQN5/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SNL26OZSQRVLEO6JRNUVIMZTICXBNEQW/",
"https://security.gentoo.org/glsa/201911-03",
"https://github.com/kkos/oniguruma/commit/c509265c5f6ae7264f7b8a8aae1cfa5fc59d108c"
],
"provider_metadata": {
"unresolved_ranges": [
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],
"vendor_product": "fedoraproject:fedora",
"extracted_events": [
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{
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},
"related_cves": [
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"evidence": "/id"
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"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 388236,
"published_at": "2019-07-10T14:15:11.7+00:00"
}