High severity · published Apr 21, 2026
CVE-2026-34291
Vulnerability in the Oracle HTTP Server product of Oracle Fusion Middleware (component: Core)
8.7
CVSS
0.3%
EPSS
No
On KEV
Description
Vulnerability in the Oracle HTTP Server product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.0.0. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle HTTP Server. While the vulnerability is in Oracle HTTP Server, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle HTTP Server accessible data as well as unauthorized access to critical data or complete access to all Oracle HTTP Server accessible data. CVSS 3.1 Base Score 8.7 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N).
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 18% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OH
Oracle HTTP Server · Oracle Corporation
12.2.1.4.0; 14.1.2.0.0 · source: vendor
HS
Http Server · Oracle
12.2.1.4.0; 14.1.2.0.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-34291
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-34291
Vendor Advisory
https://www.oracle.com/security-alerts/cpuapr2026.html
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