An Incorrect Permission Assignment for Critical Resource flaw was found in Horizon on Red Hat OpenStack. Horizon session cookies are created without the HttpOnly flag despite HorizonSecureCookies being set to true in the environmental files, possibly leading to a loss of confidentiality and integrity.
Conclusion & alert: CVE-2022-1655 is rated Low Risk (38.8/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.45%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.16% | 0.45% | +0.29% |
| 2 | 2025-12-08 | 0.14% | 0.16% | +0.02% |
| 3 | 2025-11-21 | — | 0.14% | — |
Full EPSS history (7 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.5 | 3.1 | MEDIUM |
|
3.9 | 2.5 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
unimportant | CVE-2022-1655 unimportant priority: Debian including 1 source packages (horizon), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2022-1655 |
redhat
|
low | — | https://access.redhat.com/security/cve/CVE-2022-1655 |
suse
|
medium | CVE-2022-1655 severity moderate: SUSE including 3 source package names (openstack-dashboard, python-horizon, python-openstack_auth), 12 product×package rows across 5 product lines (HPE Helion OpenStack 8, SUSE OpenStack Cloud 8, … (5 product lines)): Known Not Affected 12. | https://www.suse.com/security/cve/CVE-2022-1655/ |
ubuntu
|
low | CVE-2022-1655 low priority: Ubuntu including 1 source packages (horizon), 8 status rows across 8 suites (bionic, focal, impish, jammy, kinetic, lunar, upstream, xenial): not-affected 6, ignored 1, needs-triage 1. | https://ubuntu.com/security/CVE-2022-1655 |
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/cve-2022-1655 | Vendor Advisory |