CVE-2026-71374 Deserialization of Untrusted Data Vulnerability in Cosminexus Component Container
An attacker can execute arbitrary code by exploiting a deserialization vulnerability in the Hitachi Cosminexus Component Container.
- 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-2026-71374?
CVE-2026-71374 is a critical unsafe deserialization vulnerability in Hitachi Cosminexus Component Container, published on 8 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Deserialization of untrusted data vulnerability in Cosminexus Component Container.
This issue affects Cosminexus Component Container: from 11-70-01 before 11-70-03, from 11-60 before 11-60-03, from 11-50 through 11-50-03, from 11-40 through 11-40-03, from 11-30 through 11-30-08, from 11-20 before 11-20-10, from 11-10 through 11-10-11, from 11-00 before 11-00-13, from 09-87 before 09-87-10, from 09-80 before 09-80-05, from 09-70 before 09-70-28, from 09-50 through 09-50-22, and from 09-00 through 09-00-18.
Weakness: CWE-502
Which versions are affected by CVE-2026-71374?
How do I fix CVE-2026-71374?
No fix has been published for CVE-2026-71374 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2026-71374 being exploited?
There is no known exploitation of CVE-2026-71374 in the wild and no public exploit code.
Sources
Also known as GHSA-6jc2-v95v-m7rh.