Quick answers
- Is CVE-2026-87286 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-87286 being exploited in the wild.
- How severe is CVE-2026-87286?
- 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-2026-87286?
- 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-2026-87286 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-87286?
- 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 vulnerability exists in the Oracle GraalVM compiler component that can be exploited by an unauthenticated attacker with network access via HTTP. The attack is difficult to exploit and requires no user interaction or authentication. A successful exploit allows an attacker to achieve full system compromise with impacts to confidentiality, integrity, and availability (complete takeover of the affected GraalVM instance). The vulnerability affects Oracle GraalVM 25.0.4.1 running on Oracle Java SE.
Affected products
- Oracle GraalVM 25.0.4.1
Timeline
- 2026-09-15: disclosed