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vuln-cve/data/2026/25xxx/CVE-2026-25478.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-25478",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-02-02T16:31:35.820Z",
"datePublished": "2026-02-09T18:46:56.445Z",
"dateUpdated": "2026-02-10T16:01:16.807Z"
},
"containers": {
"cna": {
"title": "Litestar has a CORS origin allowlist bypass due to unescaped regex metacharacters in allowed origins",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-942",
"lang": "en",
"description": "CWE-942: Permissive Cross-domain Policy with Untrusted Domains",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.4,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N",
"version": "3.1"
}
}
],
"references": [
{
"name": "https://github.com/litestar-org/litestar/security/advisories/GHSA-2p2x-hpg8-cqp2",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/litestar-org/litestar/security/advisories/GHSA-2p2x-hpg8-cqp2"
},
{
"name": "https://github.com/litestar-org/litestar/commit/eb87703b309efcc0d1b087dcb12784e76b003d5a",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/litestar-org/litestar/commit/eb87703b309efcc0d1b087dcb12784e76b003d5a"
},
{
"name": "https://docs.litestar.dev/2/release-notes/changelog.html#2.20.0",
"tags": [
"x_refsource_MISC"
],
"url": "https://docs.litestar.dev/2/release-notes/changelog.html#2.20.0"
},
{
"name": "https://github.com/litestar-org/litestar/releases/tag/v2.20.0",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/litestar-org/litestar/releases/tag/v2.20.0"
}
],
"affected": [
{
"vendor": "litestar-org",
"product": "litestar",
"versions": [
{
"version": "< 2.20.0",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-02-09T18:46:56.445Z"
},
"descriptions": [
{
"lang": "en",
"value": "Litestar is an Asynchronous Server Gateway Interface (ASGI) framework. Prior to 2.20.0, CORSConfig.allowed_origins_regex is constructed using a regex built from configured allowlist values and used with fullmatch() for validation. Because metacharacters are not escaped, a malicious origin can match unexpectedly. The check relies on allowed_origins_regex.fullmatch(origin). This vulnerability is fixed in 2.20.0."
}
],
"source": {
"advisory": "GHSA-2p2x-hpg8-cqp2",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-02-10T15:30:25.275815Z",
"id": "CVE-2026-25478",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-02-10T16:01:16.807Z"
}
}
]
}
}