Vulnerability · Published Oct 20, 2026 · Assigned by oracle
CVE-2026-101737
Medium 5.9
In plain English
A medium-severity improper access control in Oracle Java SE from Oracle Corporation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities).
Official description
Vulnerability in Oracle Java SE (component: Compiler). The supported version that is affected is Oracle Java SE: 26.0.2. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Java SE. Note: This vulnerability can only be exploited by supplying data to APIs in the specified Component without using Untrusted Java Web Start applications or Untrusted Java applets, such as through a web service. CVSS 3.1 Base Score 5.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H).
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:14 | openjdk-27 | no fix listed | DEBIAN-CVE-2026-101737 |
| Ubuntu:26.04:LTS | openjdk-26 | no fix listed | UBUNTU-CVE-2026-101737 |
| Ubuntu:26.10 | openjdk-27 | no fix listed | UBUNTU-CVE-2026-101737 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Oracle Corporation | Oracle Java SE | 26.0.2 |
Weakness: CWE-284 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
References
- Oracle Advisory vendor-advisory