CVE-2026-1014: 
IBM InfoSphere Information Server vulnerability analysis and mitigation

CVE-2026-1014 is an information disclosure vulnerability in IBM InfoSphere Information Server affecting versions 11.7.0.0 through 11.7.1.6. The flaw allows authenticated network attackers with low-level privileges to expose sensitive information via JSON server response manipulation. It was published on March 25, 2026, with a patch released by IBM shortly after. The vulnerability carries a CVSS v3.1 base score of 6.5 (Medium) (IBM Advisory, Red Hat CVE).

The root cause is classified as CWE-319 (Cleartext Transmission of Sensitive Information), where the application transmits sensitive data in a manner that can be intercepted or manipulated through JSON server responses. An authenticated attacker with low privileges can exploit this over the network without any user interaction by manipulating JSON responses returned by the InfoSphere Information Server, potentially intercepting or harvesting sensitive data. Attack patterns associated with this vulnerability include session sidejacking (CAPEC-102), interception (CAPEC-117), and harvesting information via API event monitoring (CAPEC-383) (IBM Advisory, Red Hat CVE).

Successful exploitation results in a high confidentiality impact, with no effect on integrity or availability. An authenticated attacker can gain unauthorized access to sensitive information stored within or processed by IBM InfoSphere Information Server, which may include metadata, configuration details, or other confidential data managed by the platform. Given InfoSphere's role as a data integration and governance platform, exposure of such information could facilitate further targeted attacks or data exfiltration (IBM Advisory).

There is no public proof-of-concept exploit available, and no evidence of active in-the-wild exploitation has been observed as of the time of reporting. The EPSS score is approximately 0.019%, indicating a very low probability of exploitation in the near term. The vulnerability is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog. Exploitation requires authenticated access with low privileges, which somewhat limits the attack surface (IBM Advisory, Red Hat CVE).

IBM has released a security patch addressing this vulnerability; organizations should upgrade IBM InfoSphere Information Server to a version beyond 11.7.1.6 as the primary remediation step (IBM Advisory). As interim mitigations, organizations should implement network segmentation to restrict access to InfoSphere Information Server to authorized users only, enforce strong authentication controls to minimize the number of credentialed users, and monitor JSON server responses for anomalous manipulation attempts. Applying the IBM security patch immediately is strongly recommended for all systems running versions 11.7.0.0 through 11.7.1.6.

The vulnerability received routine coverage from vulnerability tracking platforms and security aggregators shortly after disclosure, with no notable researcher commentary or significant community debate observed. Social media mentions were limited to automated CVE notification accounts (Red Hat CVE).