SB20261112123 - Multiple vulnerabilities in IBM Terracotta

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Main Vulnerability Database SB20261112123

SB20261112123 - Multiple vulnerabilities in IBM Terracotta

Published: November 12, 2026

Security Bulletin ID SB20261112123
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 4
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Medium 75% Low 25%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 4 vulnerabilities.


1) Deserialization of Untrusted Data (CVE-ID: CVE-2026-10532)

CWE-ID: CWE-502 - Deserialization of Untrusted Data

CVSSv4: 6.3 [CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N]


The vulnerability allows a remote attacker to bypass security restrictions.

The vulnerability exists due to insecure input validation when processing serialized data. A remote attacker can influence serialized data sent to SimpleSocketServer or SimpleSSLSocketServer to instantiate Proxy objects and bypass the intended security restrictions.


2) Improper input validation (CVE-ID: CVE-2026-13006)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: 8.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a local privileged user to read and manipulate data.

The vulnerability exists due to improper input validation within the Core (logback) component in Oracle Communications Unified Assurance. A local privileged user can exploit this vulnerability to read and manipulate data.


3) Input validation error (CVE-ID: CVE-2025-11226)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: 7.1 [CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to insufficient validation of user-supplied input when parsing configuration file. A remote attacker can trick the victim into using a specially crafted configuration file and execute arbitrary code on the system.

Successful exploitation of the vulnerability requires presence of Janino library and Spring Framework on the user's class path.


4) Deserialization of Untrusted Data (CVE-ID: CVE-2026-9828)

CWE-ID: CWE-502 - Deserialization of Untrusted Data

CVSSv4: 6.3 [CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N]


The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to insecure input validation when processing serialized data in the QOS.CH Sarl logback logback-core (HardenedObjectInputStream (logback-core) modules). A remote attacker able to influence serialized data sent to SimpleSocketServer or SimpleSSLSocketServer can instantiate objects from classes in the java.lang and java.util packages that are not explicitly blocked.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


Remediation

Install update from vendor's website.

References