CVE-2026-0977 IBM CICS Transaction Gateway for Multiplatforms Information Disclosure

Medium 5.1 Published 13 Mar 2026 Updated 16 Mar 2026

Improper access controls in IBM CICS Transaction Gateway allow users to view or transfer files they should not access.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-0977?

CVE-2026-0977 is a medium-severity missing authorization vulnerability in IBM CICS Transaction Gateway for Multiplatforms, published on 13 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

IBM CICS Transaction Gateway for Multiplatforms 9.3 and 10.1 could allow a user to transfer or view files due to improper access controls.

Weakness: CWE-284

Which versions are affected by CVE-2026-0977?

It affects 1 product.

Products include Ibm Cics Transaction Gateway.

How do I fix CVE-2026-0977?

No fix has been published for CVE-2026-0977 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-0977 being exploited?

There is no known exploitation of CVE-2026-0977 in the wild and no public exploit code.

Sources

Also known as GHSA-x8wx-px39-c6qg.