Unrated
stale SigV4 headers sent unintended
Setting `CURLOPT_AWS_SIGV4` to NULL but does not disable SigV4 authentication, contrary to expectations and documentation. A subsequent transfer on the same handle still sends an `Authorization: AWS4-HMAC-SHA256` header to whatever URL isset next, leaking state information.
Announced Source revision 1
Original source ↗CVE-2026-86409
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-2026-86409
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",
"version": "8.21.0",
"versionType": "semver",
"lessThanOrEqual": "8.21.0"
},
{
"status": "affected",
"version": "8.20.0",
"versionType": "semver",
"lessThanOrEqual": "8.20.0"
},
{
"status": "affected",
"version": "8.19.0",
"versionType": "semver",
"lessThanOrEqual": "8.19.0"
},
{
"status": "affected",
"version": "8.18.0",
"versionType": "semver",
"lessThanOrEqual": "8.18.0"
},
{
"status": "affected",
"version": "8.17.0",
"versionType": "semver",
"lessThanOrEqual": "8.17.0"
},
{
"status": "affected",
"version": "8.16.0",
"versionType": "semver",
"lessThanOrEqual": "8.16.0"
},
{
"status": "affected",
"version": "8.15.0",
"versionType": "semver",
"lessThanOrEqual": "8.15.0"
},
{
"status": "affected",
"version": "8.14.1",
"versionType": "semver",
"lessThanOrEqual": "8.14.1"
},
{
"status": "affected",
"version": "8.14.0",
"versionType": "semver",
"lessThanOrEqual": "8.14.0"
},
{
"status": "affected",
"version": "8.13.0",
"versionType": "semver",
"lessThanOrEqual": "8.13.0"
},
{
"status": "affected",
"version": "8.12.1",
"versionType": "semver",
"lessThanOrEqual": "8.12.1"
},
{
"status": "affected",
"version": "8.12.0",
"versionType": "semver",
"lessThanOrEqual": "8.12.0"
},
{
"status": "affected",
"version": "8.11.1",
"versionType": "semver",
"lessThanOrEqual": "8.11.1"
},
{
"status": "affected",
"version": "8.11.0",
"versionType": "semver",
"lessThanOrEqual": "8.11.0"
},
{
"status": "affected",
"version": "8.10.1",
"versionType": "semver",
"lessThanOrEqual": "8.10.1"
},
{
"status": "affected",
"version": "8.10.0",
"versionType": "semver",
"lessThanOrEqual": "8.10.0"
},
{
"status": "affected",
"version": "8.9.1",
"versionType": "semver",
"lessThanOrEqual": "8.9.1"
},
{
"status": "affected",
"version": "8.9.0",
"versionType": "semver",
"lessThanOrEqual": "8.9.0"
},
{
"status": "affected",
"version": "8.8.0",
"versionType": "semver",
"lessThanOrEqual": "8.8.0"
},
{
"status": "affected",
"version": "8.7.1",
"versionType": "semver",
"lessThanOrEqual": "8.7.1"
},
{
"status": "affected",
"version": "8.7.0",
"versionType": "semver",
"lessThanOrEqual": "8.7.0"
},
{
"status": "affected",
"version": "8.6.0",
"versionType": "semver",
"lessThanOrEqual": "8.6.0"
},
{
"status": "affected",
"version": "8.5.0",
"versionType": "semver",
"lessThanOrEqual": "8.5.0"
},
{
"status": "affected",
"version": "8.4.0",
"versionType": "semver",
"lessThanOrEqual": "8.4.0"
},
{
"status": "affected",
"version": "8.3.0",
"versionType": "semver",
"lessThanOrEqual": "8.3.0"
},
{
"status": "affected",
"version": "8.2.1",
"versionType": "semver",
"lessThanOrEqual": "8.2.1"
},
{
"status": "affected",
"version": "8.2.0",
"versionType": "semver",
"lessThanOrEqual": "8.2.0"
},
{
"status": "affected",
"version": "8.1.2",
"versionType": "semver",
"lessThanOrEqual": "8.1.2"
},
{
"status": "affected",
"version": "8.1.1",
"versionType": "semver",
"lessThanOrEqual": "8.1.1"
},
{
"status": "affected",
"version": "8.1.0",
"versionType": "semver",
"lessThanOrEqual": "8.1.0"
},
{
"status": "affected",
"version": "8.0.1",
"versionType": "semver",
"lessThanOrEqual": "8.0.1"
},
{
"status": "affected",
"version": "8.0.0",
"versionType": "semver",
"lessThanOrEqual": "8.0.0"
},
{
"status": "affected",
"version": "7.88.1",
"versionType": "semver",
"lessThanOrEqual": "7.88.1"
},
{
"status": "affected",
"version": "7.88.0",
"versionType": "semver",
"lessThanOrEqual": "7.88.0"
},
{
"status": "affected",
"version": "7.87.0",
"versionType": "semver",
"lessThanOrEqual": "7.87.0"
},
{
"status": "affected",
"version": "7.86.0",
"versionType": "semver",
"lessThanOrEqual": "7.86.0"
},
{
"status": "affected",
"version": "7.85.0",
"versionType": "semver",
"lessThanOrEqual": "7.85.0"
},
{
"status": "affected",
"version": "7.84.0",
"versionType": "semver",
"lessThanOrEqual": "7.84.0"
},
{
"status": "affected",
"version": "7.83.1",
"versionType": "semver",
"lessThanOrEqual": "7.83.1"
},
{
"status": "affected",
"version": "7.83.0",
"versionType": "semver",
"lessThanOrEqual": "7.83.0"
},
{
"status": "affected",
"version": "7.82.0",
"versionType": "semver",
"lessThanOrEqual": "7.82.0"
},
{
"status": "affected",
"version": "7.81.0",
"versionType": "semver",
"lessThanOrEqual": "7.81.0"
},
{
"status": "affected",
"version": "7.80.0",
"versionType": "semver",
"lessThanOrEqual": "7.80.0"
},
{
"status": "affected",
"version": "7.79.1",
"versionType": "semver",
"lessThanOrEqual": "7.79.1"
},
{
"status": "affected",
"version": "7.79.0",
"versionType": "semver",
"lessThanOrEqual": "7.79.0"
},
{
"status": "affected",
"version": "7.78.0",
"versionType": "semver",
"lessThanOrEqual": "7.78.0"
},
{
"status": "affected",
"version": "7.77.0",
"versionType": "semver",
"lessThanOrEqual": "7.77.0"
},
{
"status": "affected",
"version": "7.76.1",
"versionType": "semver",
"lessThanOrEqual": "7.76.1"
},
{
"status": "affected",
"version": "7.76.0",
"versionType": "semver",
"lessThanOrEqual": "7.76.0"
},
{
"status": "affected",
"version": "7.75.0",
"versionType": "semver",
"lessThanOrEqual": "7.75.0"
}
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-86409
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #42592 · Revision 1
- Added to Heist Feed
- Publisher date