CVE-2026-23989
8.2 · HIGHOverview
CVE-2026-23989 is a high-severity vulnerability affecting heinlein opencloud_reva. It was published on February 6, 2026 and has a CVSS 3.1 base score of 8.2 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.2, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
REVA is an interoperability platform. Prior to 2.42.3 and 2.40.3, a bug in the GRPC authorization middleware of the "Reva" component of OpenCloud allows a malicious user to bypass the scope verification of a public link. By exploiting this via the the "archiver" service this can be leveraged to create an archive (zip or tar-file) containing all resources that this creator of the public link has access to. This vulnerability is fixed in 2.42.3 and 2.40.3.
Remediation
Check the references section for vendor advisories and patches from heinlein. Update opencloud_reva to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| heinlein | opencloud_reva | >= 0, < 2.40.3 | Affected |
Frequently Asked Questions
What is CVE-2026-23989?
CVE-2026-23989 is a high-severity vulnerability affecting heinlein opencloud_reva. It was published on February 6, 2026 and has a CVSS 3.1 base score of 8.2 (HIGH).
How severe is CVE-2026-23989?
This vulnerability has a CVSS 3.1 base score of 8.2, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-23989?
Check the references section for vendor advisories and patches from heinlein. Update opencloud_reva to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-23989?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-23989 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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