SB2026031935 - Multiple vulnerabilities in IBM App Connect Enterprise
Published: March 19, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 vulnerabilities.
1) Uncaught Exception (CVE-ID: CVE-2026-25128)
CWE-ID: CWE-248 - Uncaught Exception
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to the RangeError issue in the numeric entity. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
2) NULL pointer dereference (CVE-ID: CVE-2026-26278)
CWE-ID: CWE-476 - NULL Pointer Dereference
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in the replaceEntitiesValue() function in OrderedObjParser.js. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.
3) Incorrect Regular Expression (CVE-ID: CVE-2026-25896)
CWE-ID: CWE-185 - Incorrect Regular Expression
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:H/SA:N/E:P/U:Green
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to insufficient input validation when processing regular expressions in DOCTYPE entity names. A remote attacker can bypass the XML entity encoding.
Remediation
Install update from vendor's website.