Unrated
leaking host credentials to HTTP proxy
An HTTP proxy can trick libcurl into sending the origin's credentials (Basic password, or a Negotiate/Kerberos ticket) to the proxy itself, by answering the `CONNECT` tunnel request with 401 `WWW-Authenticate:` instead of the expected 407 `Proxy-Authenticate:`.
Announced Source revision 1
Original source ↗CVE-2026-86414
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-86414
curl
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "curl",
"product": "curl",
"versions": [
{
"status": "affected",
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"versionType": "semver",
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},
{
"status": "affected",
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"lessThanOrEqual": "8.21.0"
},
{
"status": "affected",
"version": "8.20.0",
"versionType": "semver",
"lessThanOrEqual": "8.20.0"
},
{
"status": "affected",
"version": "8.19.0",
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"lessThanOrEqual": "8.19.0"
},
{
"status": "affected",
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"versionType": "semver",
"lessThanOrEqual": "8.18.0"
},
{
"status": "affected",
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"lessThanOrEqual": "8.17.0"
},
{
"status": "affected",
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"versionType": "semver",
"lessThanOrEqual": "8.16.0"
},
{
"status": "affected",
"version": "8.15.0",
"versionType": "semver",
"lessThanOrEqual": "8.15.0"
},
{
"status": "affected",
"version": "8.14.1",
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"lessThanOrEqual": "8.14.1"
},
{
"status": "affected",
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},
{
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},
{
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},
{
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},
{
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{
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},
{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
"status": "affected",
"version": "7.15.3",
"versionType": "semver",
"lessThanOrEqual": "7.15.3"
},
{
"status": "affected",
"version": "7.15.2",
"versionType": "semver",
"lessThanOrEqual": "7.15.2"
},
{
"status": "affected",
"version": "7.15.1",
"versionType": "semver",
"lessThanOrEqual": "7.15.1"
},
{
"status": "affected",
"version": "7.15.0",
"versionType": "semver",
"lessThanOrEqual": "7.15.0"
},
{
"status": "affected",
"version": "7.14.1",
"versionType": "semver",
"lessThanOrEqual": "7.14.1"
},
{
"status": "affected",
"version": "7.14.0",
"versionType": "semver",
"lessThanOrEqual": "7.14.0"
},
{
"status": "affected",
"version": "7.13.2",
"versionType": "semver",
"lessThanOrEqual": "7.13.2"
},
{
"status": "affected",
"version": "7.13.1",
"versionType": "semver",
"lessThanOrEqual": "7.13.1"
},
{
"status": "affected",
"version": "7.13.0",
"versionType": "semver",
"lessThanOrEqual": "7.13.0"
},
{
"status": "affected",
"version": "7.12.3",
"versionType": "semver",
"lessThanOrEqual": "7.12.3"
},
{
"status": "affected",
"version": "7.12.2",
"versionType": "semver",
"lessThanOrEqual": "7.12.2"
},
{
"status": "affected",
"version": "7.12.1",
"versionType": "semver",
"lessThanOrEqual": "7.12.1"
},
{
"status": "affected",
"version": "7.12.0",
"versionType": "semver",
"lessThanOrEqual": "7.12.0"
},
{
"status": "affected",
"version": "7.11.2",
"versionType": "semver",
"lessThanOrEqual": "7.11.2"
},
{
"status": "affected",
"version": "7.11.1",
"versionType": "semver",
"lessThanOrEqual": "7.11.1"
},
{
"status": "affected",
"version": "7.11.0",
"versionType": "semver",
"lessThanOrEqual": "7.11.0"
},
{
"status": "affected",
"version": "7.10.8",
"versionType": "semver",
"lessThanOrEqual": "7.10.8"
}
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-86414
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #42602 · Revision 1
- Added to Heist Feed
- Publisher date