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VulnerabilityPublished

CVE-2026-34305: Oracle WebLogic Server · Information Exposure

Affects Oracle WebLogic ServerSource CVE Database V5

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Not known to be exploited · CVSS 7.5 High.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 26% 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:H/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 30 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Oracle CorporationOracle WebLogic ServerAffected
  • 12.2.1.4.0 – 15.1.1.0.0
4 affected builds
Fixed in–
Mavencom.oracle.weblogic/weblogic-serverpkg:maven/com.oracle.weblogic/weblogic-serverOther threatsAffected
  • 12.2.1.4.0 – 15.1.1.0.0
4 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 strongly recommends applying the April 2026 Critical Patch Update for Fusion Middleware products, which includes patches for this vulnerability. Customers should ensure they are running actively supported versions and apply the update without delay. Patch status is implied to be available via the Critical Patch Update, but users should consult the official Oracle advisory at https://www.oracle.com/security-alerts/cpuapr2026.html for detailed patch availability and installation instructions.

Description

CVE-2026-34305 is a high-severity vulnerability in Oracle WebLogic Server versions 12.2.1.4.0, 14.1.1.0.0, 14.1.

References

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