Oracle JSSE TLS DoS (CVE-2026-70907)
CVE-2026-70907 Published on August 18, 2026
Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: JSSE). Supported versions that are affected are Oracle Java SE: 8u501, 11.0.32, 17.0.20, 21.0.12, 25.0.4, 26.0.2; Oracle GraalVM for JDK: 17.0.20 and 21.0.12; Oracle GraalVM Enterprise Edition: 21.3.19. Easily exploitable vulnerability allows unauthenticated attacker with network access via TLS to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. 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 5.3 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).
Vulnerability Analysis
CVE-2026-70907 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a small impact on availability.
Weakness Type
What is an Authorization Vulnerability?
The software does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
CVE-2026-70907 has been classified to as an Authorization vulnerability or weakness.
Products Associated with CVE-2026-70907
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Affected Versions
Oracle Corporation Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition:- Version Oracle Java SE:8u501 is affected.
- Version Oracle Java SE:11.0.32 is affected.
- Version Oracle Java SE:17.0.20 is affected.
- Version Oracle Java SE:21.0.12 is affected.
- Version Oracle Java SE:25.0.4 is affected.
- Version Oracle Java SE:26.0.2 is affected.
- Version Oracle GraalVM for JDK:17.0.20 is affected.
- Version Oracle GraalVM for JDK:21.0.12 is affected.
- Version Oracle GraalVM Enterprise Edition:21.3.19 is affected.