DEBIAN-CVE-2026-44889
WebOb provides objects for HTTP requests and responses. Prior to 1.8.10, the normalization of the HTTP Location header during a redirect is vulnerable to an open redirect: WebOb joins the redirect target to the request URI using Python's urljoin, and since Python 3.10 the underlying urlsplit strips ASCII tab, carriage return, and newline characters before parsing, so a redirect target containing such characters can be reinterpreted as a protocol-relative URL whose authority is an attacker-controlled host. This bypasses the CVE-2024-42353 fix that escaped a leading double slash, allowing an attacker who influences the redirect location to send users to an arbitrary external site instead of the intended one. This vulnerability is fixed in 1.8.10.
DEBIAN-CVE-2026-44889
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-2026-44889
python-webob
Source reference: /affected/0/package/name
- Affected versions
- 1:1.8.10-1
Source reference:
/affected/0/versions1:1.8.11-1Source reference:
/affected/0/versions1:1.8.6-3Source reference:
/affected/0/versions1:1.8.7-1Source reference:
/affected/0/versions1:1.8.7-2Source reference:
/affected/0/versions1:1.8.7-3Source reference:
/affected/0/versions1:1.8.9-1Source reference:
/affected/0/versions1:1.8.9-2Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
python-webob
Source reference: /affected/1/package/name
- Affected versions
- 1:1.8.9-1
Source reference:
/affected/1/versions1:1.8.9-2Source reference:
/affected/1/versions - Fixed versions
- 1:1.8.10-0+deb13u1
Source reference:
/affected/1/ranges - Prerequisites
- Not stated in this record
python-webob
Source reference: /affected/2/package/name
- Affected versions
- 1:1.8.9-1
Source reference:
/affected/2/versions1:1.8.9-2Source reference:
/affected/2/versions - Fixed versions
- 1:1.8.10-1
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": "python-webob",
"purl": "pkg:deb/debian/python-webob?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"1:1.8.10-1",
"1:1.8.11-1",
"1:1.8.6-3",
"1:1.8.7-1",
"1:1.8.7-2",
"1:1.8.7-3",
"1:1.8.9-1",
"1:1.8.9-2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-44889.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:1.8.10-0+deb13u1"
}
]
}
],
"package": {
"name": "python-webob",
"purl": "pkg:deb/debian/python-webob?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"1:1.8.9-1",
"1:1.8.9-2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-44889.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:1.8.10-1"
}
]
}
],
"package": {
"name": "python-webob",
"purl": "pkg:deb/debian/python-webob?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"1:1.8.9-1",
"1:1.8.9-2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-44889.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #56551 · Revision 1
- Added to Heist Feed
- Publisher date