DEBIAN-CVE-2026-69246
Guzzle is an extensible PHP HTTP client. Prior to 7.15.2 and 8.0.1, Guzzle gives a transport the request URI as text and supplies the Host header separately. The cURL handlers set CURLOPT_URL to the URI exactly as written and push that Host into CURLOPT_HTTPHEADER; StreamHandler does the same through fopen(). libcurl then parses the authority itself, percent-decoding it and, on an IDN-capable build, applying IDNA mapping, and uses the result to resolve, connect, name the TLS peer and address a proxy CONNECT, while the supplied Host suppresses the aligned one libcurl would have generated. For a URI host written as 127.0.0.%31, filter_var() rejects the host as an IP literal, yet libcurl decodes it to 127.0.0.1 and reaches loopback with no DNS lookup while the server receives Host: 127.0.0.%31. An attacker who influences a fetched URI can therefore reach a host the application's checks excluded and read whatever the host exposes of the response. The same divergence moves Guzzle's own decisions onto a spelling the transport does not use: no_proxy selects proxy routing from the literal host, and RedirectMiddleware decides from it whether to strip Authorization and Cookie. Exploitation requires the application to build a request URI from untrusted input and to make a host decision before handing it to Guzzle. This issue is fixed in versions 7.15.2 and 8.0.1.
DEBIAN-CVE-2026-69246
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: osv:DEBIAN-CVE-2026-69246
guzzle
Source reference: /affected/0/package/name
- Affected versions
- 7.11.0-1
Source reference:
/affected/0/versions7.12.0-1Source reference:
/affected/0/versions7.12.1-1Source reference:
/affected/0/versions7.12.3-1Source reference:
/affected/0/versions7.13.1-1Source reference:
/affected/0/versions7.14.0-1Source reference:
/affected/0/versions7.14.1-1Source reference:
/affected/0/versions7.14.2-1Source reference:
/affected/0/versions7.15.0-1Source reference:
/affected/0/versions7.15.1-1Source reference:
/affected/0/versions7.15.2-1Source reference:
/affected/0/versions7.15.3-1Source reference:
/affected/0/versions7.15.5-1Source reference:
/affected/0/versions7.4.5-1Source reference:
/affected/0/versions7.9.2-0.1Source reference:
/affected/0/versions8.0.1-1Source reference:
/affected/0/versions8.0.2-1Source reference:
/affected/0/versions8.1.0-1Source reference:
/affected/0/versions8.2.0-1Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
guzzle
Source reference: /affected/1/package/name
- Affected versions
- 7.11.0-1
Source reference:
/affected/1/versions7.12.0-1Source reference:
/affected/1/versions7.12.1-1Source reference:
/affected/1/versions7.12.3-1Source reference:
/affected/1/versions7.13.1-1Source reference:
/affected/1/versions7.14.0-1Source reference:
/affected/1/versions7.14.1-1Source reference:
/affected/1/versions7.14.2-1Source reference:
/affected/1/versions7.15.0-1Source reference:
/affected/1/versions7.15.1-1Source reference:
/affected/1/versions7.15.2-1Source reference:
/affected/1/versions7.15.3-1Source reference:
/affected/1/versions7.15.5-1Source reference:
/affected/1/versions7.9.2-0.1Source reference:
/affected/1/versions8.0.1-1Source reference:
/affected/1/versions8.0.2-1Source reference:
/affected/1/versions8.1.0-1Source reference:
/affected/1/versions8.2.0-1Source reference:
/affected/1/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
guzzle
Source reference: /affected/2/package/name
- Affected versions
- 7.11.0-1
Source reference:
/affected/2/versions7.12.0-1Source reference:
/affected/2/versions7.12.1-1Source reference:
/affected/2/versions7.12.3-1Source reference:
/affected/2/versions7.13.1-1Source reference:
/affected/2/versions7.14.0-1Source reference:
/affected/2/versions7.14.1-1Source reference:
/affected/2/versions7.14.2-1Source reference:
/affected/2/versions7.15.0-1Source reference:
/affected/2/versions7.15.1-1Source reference:
/affected/2/versions7.9.2-0.1Source reference:
/affected/2/versions - Fixed versions
- 7.15.2-1
Source reference:
/affected/2/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "guzzle",
"purl": "pkg:deb/debian/guzzle?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"7.11.0-1",
"7.12.0-1",
"7.12.1-1",
"7.12.3-1",
"7.13.1-1",
"7.14.0-1",
"7.14.1-1",
"7.14.2-1",
"7.15.0-1",
"7.15.1-1",
"7.15.2-1",
"7.15.3-1",
"7.15.5-1",
"7.4.5-1",
"7.9.2-0.1",
"8.0.1-1",
"8.0.2-1",
"8.1.0-1",
"8.2.0-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-69246.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "guzzle",
"purl": "pkg:deb/debian/guzzle?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"7.11.0-1",
"7.12.0-1",
"7.12.1-1",
"7.12.3-1",
"7.13.1-1",
"7.14.0-1",
"7.14.1-1",
"7.14.2-1",
"7.15.0-1",
"7.15.1-1",
"7.15.2-1",
"7.15.3-1",
"7.15.5-1",
"7.9.2-0.1",
"8.0.1-1",
"8.0.2-1",
"8.1.0-1",
"8.2.0-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-69246.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "7.15.2-1"
}
]
}
],
"package": {
"name": "guzzle",
"purl": "pkg:deb/debian/guzzle?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"7.11.0-1",
"7.12.0-1",
"7.12.1-1",
"7.12.3-1",
"7.13.1-1",
"7.14.0-1",
"7.14.1-1",
"7.14.2-1",
"7.15.0-1",
"7.15.1-1",
"7.9.2-0.1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-69246.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #58311 · Revision 1
- Added to Heist Feed
- Publisher date