CVE-2026-34305Network attack vector

Unauthenticated disclosure of server-accessible data

Published Apr 21, 2026 · Updated Apr 21, 2026

Information disclosure in Oracle WebLogic Server 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, and 15.1.1.0.0 lets remote attackers read data via HTTP. Oracle identifies the affected locus only as Web Services and has not disclosed which handler or data-access operation exposes protected content. No credentials or user interaction are required; successful requests expose critical data, potentially all data accessible to the server, without reported modification or interruption.

CVSS severity7.5
High
EPSS probability0.33%
Next 30 days · Sep 17, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Oracle WebLogic Server 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, and 15.1.1.0.0 lets remote attackers read data via HTTP. Oracle identifies the affected locus only as Web Services and has not disclosed which handler or data-access operation exposes protected content. No credentials or user interaction are required; successful requests expose critical data, potentially all data accessible to the server, without reported modification or interruption.

The record

CVE
CVE-2026-34305
Published
Apr 21, 2026
Updated
Apr 21, 2026
Vendor
Oracle
Product
Oracle WebLogic Server
Classifications
CWE-200, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 21, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 21, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=12.2.1.4.0
  2. Affected versionversion=14.1.1.0.0
  3. Affected versionversion=14.1.2.0.0
  4. Affected versionversion=15.1.1.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Oracle · Oracle WebLogic Serverversion=12.2.1.4.0; version=14.1.1.0.0; version=14.1.2.0.0; version=15.1.1.0.0

Published CVSS scores

7.5OracleCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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