Quick answers
- Is CVE-2026-87287 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-87287 being exploited in the wild.
- How severe is CVE-2026-87287?
- High severity, with a CVSS score of 8.1, published 15 September 2026.
- Which products and versions are affected?
- Oracle Graalvm 25.0.4.1.
- Is there a fix for CVE-2026-87287?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-87287 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-87287?
- Check whether you run Oracle Graalvm at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A difficult-to-exploit vulnerability exists in the Oracle GraalVM compiler component that allows unauthenticated remote code execution over the network via HTTP. The vulnerability requires no user interaction and no authentication, but may require specific preconditions to trigger. Successful exploitation results in arbitrary code execution with full system compromise including confidentiality, integrity, and availability impacts. The affected version is GraalVM 25.0.4.1; patch availability status is not explicitly confirmed in the advisory.
Affected products
- Oracle GraalVM 25.0.4.1
Timeline
- 2026-09-15: disclosed