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CVE-2020-29565

21
FAUCET Score

CVE-2020-29565 is a medium-severity vulnerability affecting OpenStack Horizon versions before 15.3.2, 16.2.1, and 18.3.3, as well as Debian Linux distributions utilizing these versions. The flaw, categorized as CWE-601 (URL Redirection to Untrusted Site), stems from insufficient validation of the "next" parameter, enabling an attacker to craft a malicious URL that forces an automatic redirect to an arbitrary external site. This vulnerability has a CVSS score of 6.1, indicating a network-based attack with low complexity, requiring user interaction, and potentially leading to limited confidentiality and integrity impacts. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 15.3.0, < 15.3.2CPE matchmatch criteria
cpe:2.3:a:openstack:horizon:*:*:*:*:*:*:*:*
>= 16.0.0, < 16.2.1CPE matchmatch criteria
cpe:2.3:a:openstack:horizon:*:*:*:*:*:*:*:*
>= 17.0.0, < 18.3.3CPE matchmatch criteria
cpe:2.3:a:openstack:horizon:*:*:*:*:*:*:*:*
>= 18.4.0, <= 18.5.0CPE matchmatch criteria
cpe:2.3:a:openstack:horizon:*:*:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.1MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.40%
Probability of exploitation in next 30 days
EPSS Percentile
69.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0140 is in the 82nd percentile among its peer group of 26,219 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (7)

pippatch availablevia ghsa
Product: horizonFixed in: 15.3.2
pippatch availablevia ghsa
Product: horizonFixed in: 16.2.1
pippatch availablevia ghsa
Product: horizonFixed in: 18.3.3
pippatch availablevia ghsa
Product: horizonFixed in: 18.6.0
redhatpatch availablevia redhat_api
Product: Red Hat OpenStack Platform 13.0 (Queens)Fixed in: python-django-horizon-1:13.0.3-7.el7ost
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenStack Platform 13.0 (Queens) for RHEL 7.6 EUSFixed in: python-django-horizon-1:13.0.3-7.el7ost
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenStack Platform 16.1Fixed in: python-django-horizon-1:16.2.1-1.20201114033610.el8ost
View patch

Vendor Advisories (2)

pipGHSA-f8fh-xp28-q59mmedium

OpenStack Horizon Open redirect in workflow forms

May 24, 2022
redhatCVE-2020-29565Moderate

python-django-horizon: dashboard allows open redirect

Feb 26, 2020

References

bugs.launchpad.net / horizon/+bug/1865026
ExploitIssue TrackingThird Party Advisory
review.opendev.org / c/openstack/horizon/+/758841
PatchThird Party Advisory
review.opendev.org / c/openstack/horizon/+/758843
PatchThird Party Advisory
security.openstack.org / ossa/OSSA-2020-008.html
PatchVendor Advisory
debian.org / security/2020/dsa-4820
Third Party Advisory
openwall.com / lists/oss-security/2020/12/08/2
Mailing ListPatchThird Party Advisory