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vuln-cve/data/2026/82xxx/CVE-2026-82402.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-82402",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-08-28T22:00:43.512Z",
"datePublished": "2026-10-14T18:49:19.768Z",
"dateUpdated": "2026-10-20T01:58:51.683Z"
},
"containers": {
"cna": {
"title": "Gogs: Open Redirect in /redirect endpoint via backslash bypass in `IsSameSite`",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-601",
"lang": "en",
"description": "CWE-601: URL Redirection to Untrusted Site ('Open Redirect')",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"privilegesRequired": "NONE",
"userInteraction": "PASSIVE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"vulnAvailabilityImpact": "NONE",
"subConfidentialityImpact": "LOW",
"subIntegrityImpact": "LOW",
"subAvailabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N",
"version": "4.0"
}
}
],
"references": [
{
"name": "https://github.com/gogs/gogs/security/advisories/GHSA-3g28-2vwg-gxq6",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/gogs/gogs/security/advisories/GHSA-3g28-2vwg-gxq6"
},
{
"name": "https://github.com/gogs/gogs/pull/8391",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/gogs/gogs/pull/8391"
},
{
"name": "https://github.com/gogs/gogs/commit/0aa820e6d572771551871c0b5f5f32dffc565e3e",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/gogs/gogs/commit/0aa820e6d572771551871c0b5f5f32dffc565e3e"
},
{
"name": "https://github.com/gogs/gogs/blob/main/CHANGELOG.md#0150dev-main",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/gogs/gogs/blob/main/CHANGELOG.md#0150dev-main"
}
],
"affected": [
{
"vendor": "gogs",
"product": "gogs",
"versions": [
{
"version": "< 0.15.0+dev",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-10-14T18:49:19.768Z"
},
"descriptions": [
{
"lang": "en",
"value": "Gogs is an open source self-hosted Git service. Prior to 0.15.0+dev, an unauthenticated attacker can provide a backslash-containing target to the /redirect endpoint, and similar post-action redirect flows are also affected. internal/urlx/urlx.go IsSameSite validates a normalized form of the target while cmd/gogs/internal/web/web.go getRedirect and other callers use the original value in the Location response. This backslash normalization mismatch lets browsers interpret the Location value as a scheme-relative external URL, allowing links on a trusted Gogs domain to redirect victims to attacker-controlled content for phishing. This vulnerability is fixed in 0.15.0+dev."
}
],
"source": {
"advisory": "GHSA-3g28-2vwg-gxq6",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"references": [
{
"url": "https://github.com/gogs/gogs/security/advisories/GHSA-3g28-2vwg-gxq6",
"tags": [
"exploit"
]
}
],
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-10-20T01:58:24.208606Z",
"id": "CVE-2026-82402",
"options": [
{
"Exploitation": "poc"
},
{
"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": "2026-10-20T01:58:51.683Z"
}
}
]
}
}