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Vulnerability · Published Jul 28, 2026 · Assigned by ibm

CVE-2026-3157Security Vulnerability in IBM Sterling B2B Integrator and IBM Sterling File Gateway due to information disclosure in mailbox UI

Medium 4.3

In plain English

A medium-severity security flaw in Sterling B2B Integrator from IBM. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.3%top 77.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

IBM Sterling B2B Integrator 6.2.0.0 through 6.2.0.5_2, 6.2.1.0 through 6.2.1.1_2, and 6.2.2.0 through 6.2.2.0_1 and IBM Sterling File Gateway 6.2.0.0 through 6.2.0.5_2, 6.2.1.0 through 6.2.1.1_2, and 6.2.2.0 through 6.2.2.0_1 is vulnerable to an information disclosure due to sensitive information being included in the source code comments of a mailbox component.

Affected products (as reported)

VendorProductVersions
IBM Sterling B2B Integrator 6.2.0.0 – through 6.2.0.5_26.2.1.0 – through 6.2.1.1_26.2.2.0 – through 6.2.2.0_1
IBM Sterling File Gateway 6.2.0.0 – through 6.2.0.5_26.2.1.0 – through 6.2.1.1_26.2.2.0 – through 6.2.2.0_1

Weakness: CWE-615 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References