Critical severity · published Oct 20, 2026
CVE-2026-101521
Vulnerability in Oracle APEX (component: General)
9.8
CVSS
0.6%
EPSS
No
On KEV
Description
Vulnerability in Oracle APEX (component: General). Supported versions that are affected are 24.1.0-24.1.21, 24.2.0-24.2.20 and 26.1.0-26.1.4. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTPS to compromise Oracle APEX. Successful attacks of this vulnerability can result in takeover of Oracle APEX. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 47% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OA
Oracle APEX · Oracle Corporation
24.1.0 through 24.1.21; 24.2.0 through 24.2.20; 26.1.0 through 26.1.4 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-101521
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-101521
www.oracle.com
https://www.oracle.com/security-alerts/cpuoct2026.html
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