CVE-2026-87286: High severity Oracle GraalVM vulnerability
Vulnerability in the Oracle GraalVM product of Oracle Java SE (component: Compiler). The supported version that is affected is Oracle GraalVM: 25.0.4.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle GraalVM. Successful attacks of this vulnerability can result in takeover of Oracle GraalVM. CVSS 3.1 Base Score 8.1 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Oracle GraalVMto a version that resolves this vulnerability.Fixed in 25.0.4.1 - Compensating control
Mitigate exposure by blocking unauthenticated network access to the Oracle GraalVM HTTP interface (attack vector: AV:N via HTTP) until the vulnerability is remediated.
Event History
Frequently Asked Questions
Who can exploit this issue?
An unauthenticated attacker with network access over HTTP could exploit the vulnerability. No user interaction or prior privileges are required.
What is the potential impact of a successful attack?
Successful exploitation can result in takeover of Oracle GraalVM, with high impact to confidentiality, integrity, and availability.
Which supported release is identified as affected?
The affected supported version identified in the advisory is Oracle GraalVM 25.0.4.1.
Is exploitation expected to be straightforward?
No. The vulnerability is described as difficult to exploit and has a high attack-complexity rating, although it is remotely reachable over HTTP.