CVE-2026-22021

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 71/100
Published: 2026-04-21 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: None
I: None
A: Low

Description

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: 8u481, 8u481-b50, 8u481-perf, 11.0.30, 17.0.18, 21.0.10, 25.0.2, 26; Oracle GraalVM for JDK: 17.0.18 and 21.0.10; Oracle GraalVM Enterprise Edition: 21.3.17. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTPS 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 be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs. This vulnerability also applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. 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).

Weakness Classification (1)

Affected Software (19)

VendorProductVersion
oracle graalvm 21.3.17
oracle graalvm_for_jdk 17.0.18
oracle graalvm_for_jdk 21.0.10
oracle jdk 1.8.0
oracle jdk 1.8.0
oracle jdk 1.8.0
oracle jdk 11.0.30
oracle jdk 17.0.18
oracle jdk 21.0.10
oracle jdk 25.0.2
oracle jdk 26
oracle jre 1.8.0
oracle jre 1.8.0
oracle jre 1.8.0
oracle jre 11.0.30
oracle jre 17.0.18
oracle jre 21.0.10
oracle jre 25.0.2
oracle jre 26

References & Advisories (1)

Bug Bounty Relevance

71 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

5.3 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS — Exploitation Probability

0.30%
Raw Score 0.003050
Percentile 23.3%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00305
2026-10-28
0.00305

Intelligence Sources

nvd ref →