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VulnerabilityPublished Updated

CVE-2026-46917: Oracle Java SE · Improper Access Control

Affects Oracle Java SESource CVE Database V5

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Not known to be exploited · CVSS 5.3 Medium.

Data as of 30 Oct 2026, 06:59 UTC

CVSS 3.1 base score
5.3Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 21% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 21 Jul 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Oracle CorporationOracle Java SEAffected
  • 11.0.31 – 26.0.1
5 affected builds
Fixed in–
Oracle CorporationOracle GraalVM for JDKAffected
  • =17.0.19
  • =21.0.11
Fixed in–
Oracle CorporationOracle GraalVM Enterprise EditionAffected
  • =21.3.18
Fixed in–
Mavencom.oracle.java/sepkg:maven/com.oracle.java/seOther threatsAffected
  • 11.0.31 – 26.0.1
5 affected builds
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Oracle's July 2026 Critical Patch Update advisory includes this vulnerability among many others but does not explicitly confirm a specific patch or remediation level for CVE-2026-46917. Customers should review the advisory at https://www.oracle.com/security-alerts/cpujul2026.html and apply the relevant Critical Patch Updates promptly to address this and other vulnerabilities. No alternative mitigations or workarounds are specified.

Description

CVE-2026-46917 is a vulnerability in Oracle Java SE, Oracle GraalVM for JDK, and Oracle GraalVM Enterprise Edition affecting the JSSE component. It allows an unauthenticated attacker with network access via TLS to cause a partial denial of service. The vulnerability affects specific versions of Oracle Java SE and GraalVM products. The CVSS 3.1 base score is 5.3, indicating a medium severity impact focused on availability. Exploitation requires supplying data to APIs in the JSSE component without using untrusted Java Web Start applications or applets. No known exploits are reported in the wild. Oracle has not explicitly stated a patch or fix in the advisory but recommends applying Critical Patch Updates promptly.

References

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