An issue was discovered in OpenStack Horizon before 15.3.2, 16.x before 16.2.1, 17.x and 18.x before 18.3.3, 18.4.x, and 18.5.x. There is a lack of validation of the "next" parameter, which would allo
An issue was discovered in OpenStack Horizon before 15.3.2, 16.x before 16.2.1, 17.x and 18.x before 18.3.3, 18.4.x, and 18.5.x. There is a lack of validation of the "next" parameter, which would allow someone to supply a malicious URL in Horizon that can cause an automatic redirect to the provided malicious URL.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | horizon | >= 15.3.0, < 15.3.2, >= 16.0.0, < 16.2.1, >= 17.0.0, < 18.3.3, >= 18.4.0, < 18.6.0 | 15.3.2, 16.2.1, 18.3.3, 18.6.0 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2020-29565
- https://github.com/openstack/horizon/commit/252467100f75587e18df9c43ed5802ee8f0017fa
- https://github.com/openstack/horizon/commit/6c208edf323ced07b15ec4bc3879bddb91d398bc
- https://github.com/openstack/horizon/commit/9e0e333ab5277b6c396f602862ff90398cb0242b
- https://github.com/openstack/horizon/commit/baa370f84332ad41502daea29a551705696f4421
- https://bugs.launchpad.net/horizon/+bug/1865026
- https://github.com/openstack/horizon
- https://github.com/pypa/advisory-database/tree/main/vulns/horizon/PYSEC-2020-45.yaml
- https://review.opendev.org/c/openstack/horizon/+/758841
- https://review.opendev.org/c/openstack/horizon/+/758843
- https://security.openstack.org/ossa/OSSA-2020-008.html
- https://www.debian.org/security/2020/dsa-4820
- http://www.openwall.com/lists/oss-security/2020/12/08/2
- https://review.opendev.org/c/openstack/horizon/+/758841/
- https://review.opendev.org/c/openstack/horizon/+/758843/
- https://github.com/advisories/GHSA-f8fh-xp28-q59m
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N- Weakness (CWE)
CWE-601- Platform
- Python (PyPI)
- Package
horizon- Disclosed
- 04.12.2020
- Updated
- 11.10.2026 12:20
Sources and licenses
OSV / GitHub Advisory Database - GHSA-f8fh-xp28-q59m - CC BY 4.0
OSV / GitHub Advisory Database - PYSEC-2020-45 - PyPA Advisory Database; CC BY 4.0
Vulnerability history: horizon
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 12
- First → latest
- 09.2012 06.2026
- Without a fix
- 2
- Exploited in attacks
- 0
Severity breakdown
- Medium 9
- Low 2
- Unrated 1
Disclosures per year
- 2017: 0
- 2018: 0
- 2019: 0
- 2020: 1
- 2021: 0
- 2022: 6
- 2023: 1
- 2024: 0
- 2025: 0
- 2026: 2
earlier: 2
-
An issue was discovered in OpenStack Horizon before 15.3.2, 16.x before 16.2.1, 17.x and 18.x before 18.3.3, 18.4.x, and 18.5.x. There is a lack of validation of the "next" parameter, which would allo this entry
Know which vulnerabilities affect your application
With the DockRay integration and software inventory enabled, DockRay checks reported component versions against known vulnerabilities and notifies you about confirmed matches. Coverage depends on the supported technology and available advisory data.