CVE catalog
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 tar
- Severity
- Medium · CVSS 6.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.27% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | python-webob | sid | 1:1.8.11-1 | fixed |
| Debian | python-webob | forky | 1:1.8.11-1 | fixed |
| Debian | python-webob | trixie | 1:1.8.10-0+deb13u1 | fixed |
| Debian | python-webob | bookworm | 1:1.8.6-3 | vulnerable |
| Cpe | python-webob | Not reported | Not reported | vulnerable |
| Cpe | webob | Not reported | 1.8.10 | fixed |
| Ubuntu | python-webob | noble | 1:1.8.7-1ubuntu0.1.24.04.2 | fixed |
| Ubuntu | python-webob-doc | noble | 1:1.8.7-1ubuntu0.1.24.04.2 | fixed |
| Ubuntu | python3-webob | noble | 1:1.8.7-1ubuntu0.1.24.04.2 | fixed |
| Ubuntu | python-webob | pro | 1:1.8.5-1 | vulnerable |
| Ubuntu | python-webob | pro | 1:1.8.5-1build1 | vulnerable |
| Ubuntu | python-webob | pro | 1:1.8.5-2 | vulnerable |
| Ubuntu | python-webob | pro | 1:1.8.5-2ubuntu0.1 | vulnerable |
| Ubuntu | python-webob | pro | 1:1.8.5-2ubuntu0.1+esm1 | fixed |
| Ubuntu | python-webob | 22.04 | 1:1.8.6-1.1 | vulnerable |
| Ubuntu | python-webob | 22.04 | 1:1.8.6-1.1ubuntu0.1 | vulnerable |
| Ubuntu | python-webob | 22.04 | 1:1.8.6-1.1ubuntu0.2 | fixed |
| Ubuntu | python-webob | 24.04 | 1:1.8.6-3 | vulnerable |
| Ubuntu | python-webob | 24.04 | 1:1.8.7-1 | vulnerable |
| Ubuntu | python-webob | 24.04 | 1:1.8.7-1ubuntu0.1.24.04.1 | vulnerable |
| Ubuntu | python-webob | 24.04 | 1:1.8.7-1ubuntu0.1.24.04.2 | fixed |
| Ubuntu | python-webob | 25.10 | 1:1.8.9-1 | vulnerable |
| Ubuntu | python-webob | 26.04 | 1:1.8.9-1 | vulnerable |
| Ubuntu | python-webob | 26.04 | 1:1.8.9-1ubuntu0.1 | fixed |
| Suse | python-WebOb | linux enterprise module for basesystem 15 sp7 | 1.7.4-150000.3.6.1 | fixed |
| Suse | python-WebOb | linux enterprise module for package hub 15 sp7 | 1.7.4-150000.3.6.1 | fixed |
| Suse | python-Markdown | linux enterprise server 16.0 | 3.8.2-160000.3.1 | fixed |
| Suse | python-PyGithub | linux enterprise server 16.0 | 2.6.1-160000.3.1 | fixed |
| Suse | python-WebOb | linux enterprise server 16.0 | 1.8.9-160000.3.1 | fixed |
| Suse | python-apache-libcloud | linux enterprise server 16.0 | 3.8.0-160000.3.1 | fixed |
| Suse | python-handy-archives | linux enterprise server 16.0 | 0.2.0-160000.3.1 | fixed |
| Suse | python-soupsieve | linux enterprise server 16.0 | 2.6-160000.3.1 | fixed |
| Suse | python-Markdown | linux enterprise server for sap applications 16.0 | 3.8.2-160000.3.1 | fixed |
| Suse | python-PyGithub | linux enterprise server for sap applications 16.0 | 2.6.1-160000.3.1 | fixed |
| Suse | python-WebOb | linux enterprise server for sap applications 16.0 | 1.8.9-160000.3.1 | fixed |
| Suse | python-apache-libcloud | linux enterprise server for sap applications 16.0 | 3.8.0-160000.3.1 | fixed |
| Suse | python-handy-archives | linux enterprise server for sap applications 16.0 | 0.2.0-160000.3.1 | fixed |
| Suse | python-soupsieve | linux enterprise server for sap applications 16.0 | 2.6-160000.3.1 | fixed |
| Opensuse | python-Markdown | leap 16.0 | 3.8.2-160000.3.1 | fixed |
| Opensuse | python-PyGithub | leap 16.0 | 2.6.1-160000.3.1 | fixed |
| Opensuse | python-WebOb | leap 16.0 | 1.8.9-160000.3.1 | fixed |
| Opensuse | python-apache-libcloud | leap 16.0 | 3.8.0-160000.3.1 | fixed |
| Opensuse | python-handy-archives | leap 16.0 | 0.2.0-160000.3.1 | fixed |
| Opensuse | python-joblib | leap 16.0 | 1.5.2-160000.1.1 | fixed |
| Opensuse | python-soupsieve | leap 16.0 | 2.6-160000.3.1 | fixed |
| Opensuse | python-WebOb | tumbleweed | 1.8.10-1.1 | fixed |
| Cpe | webob | Not reported | 1.8.10 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | python-webob | source | sid | 1:1.8.10-1 | not yet assigned | Not reported | Not reported |
| Debian | python-webob | source | forky | 1:1.8.10-1 | not yet assigned | Not reported | Not reported |
| Debian | python-webob | source | trixie | 1:1.8.10-0+deb13u1 | not yet assigned | Not reported | Not reported |
| Debian | python-webob | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
| Cpe | webob | cpe | Not reported | 1.8.10 | Not reported | Not reported | Not reported |
| Ubuntu | python-webob | deb | noble | 1:1.8.7-1ubuntu0.1.24.04.2 | Not reported | Not reported | Not reported |
| Ubuntu | python-webob-doc | deb | noble | 1:1.8.7-1ubuntu0.1.24.04.2 | Not reported | Not reported | Not reported |
| Ubuntu | python3-webob | deb | noble | 1:1.8.7-1ubuntu0.1.24.04.2 | Not reported | Not reported | Not reported |
| Ubuntu | python-webob | deb | pro | 1:1.8.5-2ubuntu0.1+esm1 | Not reported | UBUNTU-CVE-2026-44889 | Not reported |
| Ubuntu | python-webob | deb | 22.04 | 1:1.8.6-1.1ubuntu0.2 | Not reported | UBUNTU-CVE-2026-44889 | Not reported |
| Ubuntu | python-webob | deb | 24.04 | 1:1.8.7-1ubuntu0.1.24.04.2 | Not reported | UBUNTU-CVE-2026-44889 | Not reported |
| Ubuntu | python-webob | deb | 26.04 | 1:1.8.9-1ubuntu0.1 | Not reported | UBUNTU-CVE-2026-44889 | Not reported |
| Suse | python-WebOb | rpm | linux enterprise module for basesystem 15 sp7 | 1.7.4-150000.3.6.1 | Not reported | SUSE-SU-2026:2982-1 | Not reported |
| Suse | python-WebOb | rpm | linux enterprise module for package hub 15 sp7 | 1.7.4-150000.3.6.1 | Not reported | SUSE-SU-2026:2982-1 | Not reported |
| Suse | python-Markdown | rpm | linux enterprise server 16.0 | 3.8.2-160000.3.1 | Not reported | SUSE-SU-2026:22370-1 | Not reported |
| Suse | python-PyGithub | rpm | linux enterprise server 16.0 | 2.6.1-160000.3.1 | Not reported | SUSE-SU-2026:22370-1 | Not reported |
| Suse | python-WebOb | rpm | linux enterprise server 16.0 | 1.8.9-160000.3.1 | Not reported | SUSE-SU-2026:22370-1 | Not reported |
| Suse | python-apache-libcloud | rpm | linux enterprise server 16.0 | 3.8.0-160000.3.1 | Not reported | SUSE-SU-2026:22370-1 | Not reported |
| Suse | python-handy-archives | rpm | linux enterprise server 16.0 | 0.2.0-160000.3.1 | Not reported | SUSE-SU-2026:22370-1 | Not reported |
| Suse | python-soupsieve | rpm | linux enterprise server 16.0 | 2.6-160000.3.1 | Not reported | SUSE-SU-2026:22370-1 | Not reported |
| Suse | python-Markdown | rpm | linux enterprise server for sap applications 16.0 | 3.8.2-160000.3.1 | Not reported | SUSE-SU-2026:22370-1 | Not reported |
| Suse | python-PyGithub | rpm | linux enterprise server for sap applications 16.0 | 2.6.1-160000.3.1 | Not reported | SUSE-SU-2026:22370-1 | Not reported |
| Suse | python-WebOb | rpm | linux enterprise server for sap applications 16.0 | 1.8.9-160000.3.1 | Not reported | SUSE-SU-2026:22370-1 | Not reported |
| Suse | python-apache-libcloud | rpm | linux enterprise server for sap applications 16.0 | 3.8.0-160000.3.1 | Not reported | SUSE-SU-2026:22370-1 | Not reported |
| Suse | python-handy-archives | rpm | linux enterprise server for sap applications 16.0 | 0.2.0-160000.3.1 | Not reported | SUSE-SU-2026:22370-1 | Not reported |
| Suse | python-soupsieve | rpm | linux enterprise server for sap applications 16.0 | 2.6-160000.3.1 | Not reported | SUSE-SU-2026:22370-1 | Not reported |
| Opensuse | python-Markdown | rpm | leap 16.0 | 3.8.2-160000.3.1 | Not reported | OPENSUSE-SU-2026:21063-1 | Not reported |
| Opensuse | python-PyGithub | rpm | leap 16.0 | 2.6.1-160000.3.1 | Not reported | OPENSUSE-SU-2026:21063-1 | Not reported |
| Opensuse | python-WebOb | rpm | leap 16.0 | 1.8.9-160000.3.1 | Not reported | OPENSUSE-SU-2026:21063-1 | Not reported |
| Opensuse | python-apache-libcloud | rpm | leap 16.0 | 3.8.0-160000.3.1 | Not reported | OPENSUSE-SU-2026:21063-1 | Not reported |
| Opensuse | python-handy-archives | rpm | leap 16.0 | 0.2.0-160000.3.1 | Not reported | OPENSUSE-SU-2026:21063-1 | Not reported |
| Opensuse | python-joblib | rpm | leap 16.0 | 1.5.2-160000.1.1 | Not reported | OPENSUSE-SU-2026:21063-1 | Not reported |
| Opensuse | python-soupsieve | rpm | leap 16.0 | 2.6-160000.3.1 | Not reported | OPENSUSE-SU-2026:21063-1 | Not reported |
| Opensuse | python-WebOb | rpm | tumbleweed | 1.8.10-1.1 | Not reported | OPENSUSE-SU-2026:11041-1 | Not reported |
| Cpe | webob | cpe | Not reported | 1.8.10 | Not reported | NVD-CVE-2026-44889 | Not reported |
Notes
[bookworm] python-webob: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [python3-webob]Affected
Source package: [python-webob]
Details (2)
1:1.8.6-3· all · bookwormAffected
nvd · python-webob · debian · bookworm; nvd · python-webob · debian · 12
1:1.8.6-3· all · bookwormAffected
nvd · python-webob · debian · bookworm; nvd · python-webob · debian · 12
- [python-webob-doc]Affected
Source package: [python-webob]
Details (2)
1:1.8.6-3· all · bookwormAffected
nvd · python-webob · debian · bookworm; nvd · python-webob · debian · 12
1:1.8.6-3· all · bookwormAffected
nvd · python-webob · debian · bookworm; nvd · python-webob · debian · 12
[openSUSE Tumbleweed]
- [python313-WebOb]Unknown
Source package: [python-WebOb]
Details (1)
1.8.10-1.3· noarch · tumbleweedUnknown · Fixed:
1.8.10-1.1Version impact unknown
nvd · python-WebOb · opensuse · tumbleweed
- [python314-WebOb]Unknown
Source package: [python-WebOb]
Details (1)
1.8.10-1.3· noarch · tumbleweedUnknown · Fixed:
1.8.10-1.1Version impact unknown
nvd · python-WebOb · opensuse · tumbleweed
- [python-WebOb-doc]Unknown
Source package: [python-WebOb]
Details (1)
1.8.10-1.3· noarch · tumbleweedUnknown · Fixed:
1.8.10-1.1Version impact unknown
nvd · python-WebOb · opensuse · tumbleweed
[Debian 13 (Trixie)]
- [python3-webob]Fixed
Source package: [python-webob]
Details (2)
1:1.8.10-0+deb13u1· all · trixieFixed · Fixed:
1:1.8.10-0+deb13u1nvd · python-webob · debian · 13
1:1.8.10-0+deb13u1· all · trixieFixed · Fixed:
1:1.8.10-0+deb13u1nvd · python-webob · debian · 13
- [python-webob-doc]Fixed
Source package: [python-webob]
Details (2)
1:1.8.10-0+deb13u1· all · trixieFixed · Fixed:
1:1.8.10-0+deb13u1nvd · python-webob · debian · 13
1:1.8.10-0+deb13u1· all · trixieFixed · Fixed:
1:1.8.10-0+deb13u1nvd · python-webob · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/suse-su-2026_22370-1.json]
- [https://github.com/Pylons/webob/security/advisories/GHSA-fh3h-vg37-cc95]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-44889]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-44889]
- [https://osv.dev/vulnerability/SUSE-SU-2026:22370-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:2982-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-44889]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:11041-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:21063-1]
- [https://security-tracker.debian.org/tracker/CVE-2026-44889]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44889.json]
- [https://ubuntu.com/security/notices/USN-8759-1]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]