CVE-2026-3157 Information disclosure in Sterling B2B Integrator

Medium 4.3 Published Updated

Attackers can access sensitive information exposed in source code comments within the mailbox UI of IBM Sterling B2B Integrator and File Gateway.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-3157?

CVE-2026-3157 is a medium-severity vulnerability in Ibm Sterling B2b Integrator, published on 28 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

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.

Weakness: CWE-615

Which versions are affected by CVE-2026-3157?

It affects 2 products.

Products include Ibm Sterling B2b Integrator, Ibm Sterling File Gateway.

How do I fix CVE-2026-3157?

No fix has been published for CVE-2026-3157 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-3157 being exploited?

There is no known exploitation of CVE-2026-3157 in the wild and no public exploit code.

All Ibm Sterling B2b Integrator vulnerabilities

Sources

Also known as GHSA-pcjc-2762-7xwq.

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