CVE-2026-107928
Full vulnerability record from the local CVENow database.
Description
When curl is built with GnuTLS, a malicious WebSocket server can make curl send memory past its send buffer. This is due to an out of bounds read following when `gnutls_record_send()` returns a number of bytes sent **greater than the number of bytes it was given to send**. GnuTLS does that after a blocked send.
Severity
Not scored
CVSS score
Not available
Vulnerability status
Awaiting Analysis
Source identifier
2499f714-1537-4658-8207-48ae4bb9eae9
Published
2026-10-20 21:17:15.470000
Last modified
2026-10-22 16:57:53.407000
View original CVE JSON
{
"id": "CVE-2026-107928",
"sourceIdentifier": "2499f714-1537-4658-8207-48ae4bb9eae9",
"published": "2026-10-20T21:17:15.470",
"lastModified": "2026-10-22T16:57:53.407",
"vulnStatus": "Awaiting Analysis",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "When curl is built with GnuTLS, a malicious WebSocket server can make curl\nsend memory past its send buffer. This is due to an out of bounds read\nfollowing when `gnutls_record_send()` returns a number of bytes sent **greater\nthan the number of bytes it was given to send**. GnuTLS does that after a\nblocked send."
}
],
"affected": [
{
"source": "2499f714-1537-4658-8207-48ae4bb9eae9",
"affectedData": [
{
"vendor": "curl",
"product": "curl",
"defaultStatus": "unaffected",
"versions": [
{
"version": "8.22.0",
"lessThanOrEqual": "8.22.0",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.21.0",
"lessThanOrEqual": "8.21.0",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.20.0",
"lessThanOrEqual": "8.20.0",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.19.0",
"lessThanOrEqual": "8.19.0",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.18.0",
"lessThanOrEqual": "8.18.0",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.17.0",
"lessThanOrEqual": "8.17.0",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.16.0",
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"versionType": "semver",
"status": "affected"
},
{
"version": "8.15.0",
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"versionType": "semver",
"status": "affected"
},
{
"version": "8.14.1",
"lessThanOrEqual": "8.14.1",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.14.0",
"lessThanOrEqual": "8.14.0",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.13.0",
"lessThanOrEqual": "8.13.0",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.12.1",
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"versionType": "semver",
"status": "affected"
},
{
"version": "8.12.0",
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"versionType": "semver",
"status": "affected"
},
{
"version": "8.11.1",
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},
{
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"status": "affected"
},
{
"version": "8.10.1",
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"status": "affected"
},
{
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"versionType": "semver",
"status": "affected"
},
{
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},
{
"version": "8.9.0",
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"versionType": "semver",
"status": "affected"
},
{
"version": "8.8.0",
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"status": "affected"
},
{
"version": "8.7.1",
"lessThanOrEqual": "8.7.1",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.7.0",
"lessThanOrEqual": "8.7.0",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.6.0",
"lessThanOrEqual": "8.6.0",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.5.0",
"lessThanOrEqual": "8.5.0",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.4.0",
"lessThanOrEqual": "8.4.0",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.3.0",
"lessThanOrEqual": "8.3.0",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.2.1",
"lessThanOrEqual": "8.2.1",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.2.0",
"lessThanOrEqual": "8.2.0",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.1.2",
"lessThanOrEqual": "8.1.2",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.1.1",
"lessThanOrEqual": "8.1.1",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.1.0",
"lessThanOrEqual": "8.1.0",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.0.1",
"lessThanOrEqual": "8.0.1",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.0.0",
"lessThanOrEqual": "8.0.0",
"versionType": "semver",
"status": "affected"
},
{
"version": "7.88.1",
"lessThanOrEqual": "7.88.1",
"versionType": "semver",
"status": "affected"
},
{
"version": "7.88.0",
"lessThanOrEqual": "7.88.0",
"versionType": "semver",
"status": "affected"
},
{
"version": "7.87.0",
"lessThanOrEqual": "7.87.0",
"versionType": "semver",
"status": "affected"
},
{
"version": "7.86.0",
"lessThanOrEqual": "7.86.0",
"versionType": "semver",
"status": "affected"
}
]
}
]
}
],
"metrics": {},
"references": [
{
"url": "https://curl.se/docs/CVE-2026-107928.html",
"source": "2499f714-1537-4658-8207-48ae4bb9eae9"
},
{
"url": "https://curl.se/docs/CVE-2026-107928.json",
"source": "2499f714-1537-4658-8207-48ae4bb9eae9"
},
{
"url": "https://hackerone.com/reports/4099194",
"source": "2499f714-1537-4658-8207-48ae4bb9eae9"
}
]
}