GHSA-7ggw-h8pp-r95r
CRITICALGHSA-7ggw-h8pp-r95r is a critical-severity (CVSS 9.8) CWE-613 vulnerability in october/rain. 1 public exploit reference exists, so weaponization risk is real. O3 Security confirms whether GHSA-7ggw-h8pp-r95r is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
October CMS Session ID not invalidated after logout
Blast Radius
october/rain🐘october/rainReal-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
Impact
When logging out, the session ID was not invalidated. This is not a problem while the user is logged out, but as soon as the user logs back in the old session ID would be valid again; which means that anyone that gained access to the old session cookie would be able to act as the logged in user. This is not a major concern for the majority of cases, since it requires a malicious party gaining access to the session cookie in the first place, but nevertheless has been fixed.
Patches
Issue has been patched in Build 472 (v1.0.472) and v1.1.2.
Workarounds
Apply https://github.com/octobercms/library/commit/642f597489e6f644d4bd9a0c267e864cabead024 to your installation manually if unable to upgrade to Build 472 or v1.1.2.
References
- Reported by Anisio (Brazilian Information Security Analyst)
- http://cve.circl.lu/cve/CVE-2021-3311
For more information
If you have any questions or comments about this advisory:
- Email us at [email protected]
Threat assessment:
<img width="699" alt="Screen Shot 2021-02-07 at 11 50 35 PM" src="https://user-images.githubusercontent.com/7253840/107180881-51eaf000-699f-11eb-8828-333128faf2a6.png">Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | october/rain | all versions | 1.0.472 |
| 🐘Packagist | october/rain | ≥ 1.1.0&&< 1.1.2 | 1.1.2 |
Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for october/rain. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update october/rain to 1.0.472 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-7ggw-h8pp-r95r 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.
How O3 protects you
O3 pinpoints whether GHSA-7ggw-h8pp-r95r is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to GHSA-7ggw-h8pp-r95r. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-7ggw-h8pp-r95r in your dependencies?
O3 detects GHSA-7ggw-h8pp-r95r across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.