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VulnerabilityPublished

CVE-2026-34268: Oracle Java SE · Information Exposure

Affects Oracle Java SESource CVE Database V5

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Not known to be exploited · CVSS 2.9 Low.

Data as of 30 Oct 2026, 06:59 UTC

CVSS 3.1 base score
2.9Low
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 1% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 21 Apr 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
  • 8u481 – 26
8 affected builds
Fixed in–
Oracle CorporationOracle GraalVM for JDKAffected
  • =17.0.18
  • =21.0.10
Fixed in–
Oracle CorporationOracle GraalVM Enterprise EditionAffected
  • =21.3.17
Fixed in–
Mavencom.oracle/java-sepkg:maven/com.oracle/java-seOther threatsAffected
  • 11.0.30 – 26
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 April 2026 Critical Patch Update advisory includes multiple security patches and strongly recommends applying these updates promptly. Although the advisory does not explicitly confirm a patch for CVE-2026-34268, customers should remain on actively supported versions and apply the latest Critical Patch Updates without delay. No vendor advisory states that no action is required or that the vulnerability is already mitigated. Therefore, applying Oracle's cumulative security patches is the recommended mitigation.

Description

CVE-2026-34268 is a low-severity vulnerability in Oracle Java SE, Oracle GraalVM for JDK, and Oracle GraalVM Enterprise Edition affecting multiple versions including 8u481, 11.0.30, 17.0.18, 21.0.10, 25.0.2, and 26. The vulnerability allows an unauthenticated attacker with local logon access to the infrastructure where these products run to gain unauthorized read access to a subset of accessible data.

References

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