CVE-2021-38986 Auth bypass in MQ Appliance
Authenticated users can impersonate others due to session invalidation failure after logout on IBM MQ Appliance.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-38986?
CVE-2021-38986 is a medium-severity authentication bypass vulnerability in Ibm Mq, published on 1 Mar 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
IBM MQ Appliance 9.2 CD and 9.2 LTS does not invalidate session after logout which could allow an authenticated user to impersonate another user on the system. IBM X-Force ID: 212942.
Weakness: CWE-613
Which versions are affected by CVE-2021-38986?
It affects 1 product.
Products include Ibm Mq.
How do I fix CVE-2021-38986?
No fix has been published for CVE-2021-38986 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2021-38986 being exploited?
There is no known exploitation of CVE-2021-38986 in the wild and no public exploit code.
Other vulnerabilities in Ibm Mq
- CVE-2026-10575 IBM MQ queue manager is vulnerable to remote code execution
- CVE-2026-11375 IBM MQ queue manager is vulnerable to remote code execution
- CVE-2026-11378 IBM MQ queue manager is vulnerable to remote code execution
- CVE-2022-22489 XML external entity in MQ
- CVE-2026-10027 IBM MQ queue manager is vulnerable to unauthenticated remote code execution
Sources
Also known as GHSA-cvg9-cj93-x2h9.