CVE-2022-24444 — hybridsessions
MEDIUMCVE-2022-24444 is a medium-severity (CVSS 6.5) CWE-384 vulnerability in silverstripe/hybridsessions. A fix is available for silverstripe/hybridsessions — see the affected versions and patch details below.
Hybridsessions does not expire session id on logout
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Real-World Exposure
silverstripe/hybridsessions🐘silverstripe/hybridsessionsReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.
Description
When using the hybridsessions module is used without the session-manager module installed and sessions IDs are saved to disk, unexpired SessionIDs of logged out users can still be used to make authenticated requests.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | silverstripe/hybridsessions | ≥ 1.0.0&&< 2.4.1 | 2.4.1composer require silverstripe/hybridsessions:^2.4.1 |
| 🐘Packagist | silverstripe/hybridsessions | ≥ 2.5.0&&< 2.5.1 | 2.5.1composer require silverstripe/hybridsessions:^2.5.1 |
Affected Products
silverstripesilverstripeDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for silverstripe/hybridsessions, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update silverstripe/hybridsessions to 2.4.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-24444 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
Frequently Asked Questions
Is CVE-2022-24444 in your dependencies?
Find it across Packagist, including transitive dependencies.