Medium severity · published Oct 20, 2026
CVE-2026-91339
Vulnerability in the iSupport product of Oracle E-Business Suite (component: Service Requests)
6.5
CVSS
0.3%
EPSS
No
On KEV
Description
Vulnerability in the iSupport product of Oracle E-Business Suite (component: Service Requests). Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise iSupport. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all iSupport accessible data. CVSS 3.1 Base Score 6.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N).
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 19% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IS
iSupport · Oracle Corporation
12.2.3 through 12.2.15 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-91339
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-91339
www.oracle.com
https://www.oracle.com/security-alerts/cpuoct2026.html
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