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vuln-cve/data/2026/82xxx/CVE-2026-82208.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-82208",
"assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"state": "PUBLISHED",
"assignerShortName": "curl",
"dateReserved": "2026-08-28T08:25:31.400Z",
"datePublished": "2026-09-06T17:49:16.014Z",
"dateUpdated": "2026-09-15T06:03:14.795Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"shortName": "curl",
"dateUpdated": "2026-09-15T06:03:14.795Z"
},
"title": "wolfSSL CA-cache hit overrides callback",
"descriptions": [
{
"lang": "en",
"value": "With the wolfSSL backend, when CA caching is enabled and an\n`CURLOPT_SSL_CTX_FUNCTION` callback replaces the trust store, libcurl can\nsilently reinstall the cached store after the callback returns. A certificate\ntrusted by the cached store but rejected by the callback-selected store is\nthen incorrectly accepted."
}
],
"affected": [
{
"vendor": "curl",
"product": "curl",
"versions": [
{
"version": "8.9.1",
"status": "affected",
"versionType": "semver",
"lessThan": "8.14.2"
},
{
"version": "8.15.0",
"status": "affected",
"versionType": "semver",
"lessThan": "8.16.1"
},
{
"version": "8.17.0",
"status": "affected",
"versionType": "semver",
"lessThan": "8.20.1"
},
{
"version": "8.21.0",
"status": "affected",
"versionType": "semver",
"lessThan": "8.22.0"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "curl",
"product": "curl",
"versions": [
{
"version": "0f2876b2c33f6784a27b6f7345bd8cd95b46352a",
"status": "affected",
"versionType": "git",
"lessThan": "ed0338befd1d865a8ea1fbaa90013a096dedd07a"
}
],
"defaultStatus": "unaffected",
"repo": "https://github.com/curl/curl.git"
},
{
"vendor": "curl",
"product": "curl",
"versions": [
{
"version": "8.21.0",
"status": "affected"
},
{
"version": "8.20.0",
"status": "affected"
},
{
"version": "8.19.0",
"status": "affected"
},
{
"version": "8.18.0",
"status": "affected"
},
{
"version": "8.17.0",
"status": "affected"
},
{
"version": "8.16.0",
"status": "affected"
},
{
"version": "8.15.0",
"status": "affected"
},
{
"version": "8.14.1",
"status": "affected"
},
{
"version": "8.14.0",
"status": "affected"
},
{
"version": "8.13.0",
"status": "affected"
},
{
"version": "8.12.1",
"status": "affected"
},
{
"version": "8.12.0",
"status": "affected"
},
{
"version": "8.11.1",
"status": "affected"
},
{
"version": "8.11.0",
"status": "affected"
},
{
"version": "8.10.1",
"status": "affected"
},
{
"version": "8.10.0",
"status": "affected"
},
{
"version": "8.9.1",
"status": "affected"
}
],
"defaultStatus": "unaffected"
}
],
"references": [
{
"url": "https://curl.se/docs/CVE-2026-82208.json"
},
{
"url": "https://curl.se/docs/CVE-2026-82208.html"
},
{
"url": "https://hackerone.com/reports/3973090"
}
],
"x_osv": {
"schema_version": "1.5.0",
"id": "CURL-CVE-2026-82208",
"aliases": [
"CVE-2026-82208"
],
"summary": "wolfSSL CA-cache hit overrides callback",
"modified": "2026-09-07T10:34:51.00Z",
"database_specific": {
"package": "curl",
"affects": "lib",
"URL": "https://curl.se/docs/CVE-2026-82208.json",
"www": "https://curl.se/docs/CVE-2026-82208.html",
"issue": "https://hackerone.com/reports/3973090",
"CWE": {
"id": "CWE-295",
"desc": "Improper Certificate Validation"
},
"last_affected": "8.21.0",
"severity": "Low"
},
"published": "2026-09-02T08:00:00.00Z",
"affected": [
{
"ranges": [
{
"type": "SEMVER",
"events": [
{
"introduced": "8.9.1"
},
{
"fixed": "8.14.2"
},
{
"introduced": "8.15.0"
},
{
"fixed": "8.16.1"
},
{
"introduced": "8.17.0"
},
{
"fixed": "8.20.1"
},
{
"introduced": "8.21.0"
},
{
"fixed": "8.22.0"
}
]
},
{
"type": "GIT",
"repo": "https://github.com/curl/curl.git",
"events": [
{
"introduced": "0f2876b2c33f6784a27b6f7345bd8cd95b46352a"
},
{
"fixed": "ed0338befd1d865a8ea1fbaa90013a096dedd07a"
}
]
}
],
"versions": [
"8.21.0",
"8.20.0",
"8.19.0",
"8.18.0",
"8.17.0",
"8.16.0",
"8.15.0",
"8.14.1",
"8.14.0",
"8.13.0",
"8.12.1",
"8.12.0",
"8.11.1",
"8.11.0",
"8.10.1",
"8.10.0",
"8.9.1"
]
}
],
"credits": [
{
"name": "Stanislav Fort (Aisle Research)",
"type": "finder"
},
{
"name": "Stefan Eissing",
"type": "remediation developer"
}
],
"details": "With the wolfSSL backend, when CA caching is enabled and an\n`CURLOPT_SSL_CTX_FUNCTION` callback replaces the trust store, libcurl can\nsilently reinstall the cached store after the callback returns. A certificate\ntrusted by the cached store but rejected by the callback-selected store is\nthen incorrectly accepted."
},
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"description": "Improper Certificate Validation",
"cweId": "CWE-295",
"type": "CWE"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Stanislav Fort (Aisle Research)",
"type": "finder"
},
{
"lang": "en",
"value": "Stefan Eissing",
"type": "remediation developer"
}
],
"x_generator": {
"engine": "cvelib 1.8.0"
}
},
"adp": [
{
"problemTypes": [
{
"descriptions": [
{
"type": "CWE",
"cweId": "CWE-295",
"lang": "en",
"description": "CWE-295 Improper Certificate Validation"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.5,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
}
},
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-09-08T18:46:24.528833Z",
"id": "CVE-2026-82208",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"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": "2026-09-08T18:46:41.865Z"
}
}
]
}
}