CVE-2026-88131 Microsoft Dataverse Remote Code Execution Vulnerability
An unauthorized attacker can execute code over the network via deserialization of untrusted data in Microsoft Dataverse.
- 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-2026-88131?
CVE-2026-88131 is a critical unsafe deserialization vulnerability in Microsoft Dataverse, published on 8 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Deserialization of untrusted data in Microsoft Dataverse allows an unauthorized attacker to execute code over a network.
Weakness: CWE-502
Which versions are affected by CVE-2026-88131?
It affects 1 product.
Products include Microsoft Dataverse.
How do I fix CVE-2026-88131?
No fix has been published for CVE-2026-88131 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-2026-88131 being exploited?
There is no known exploitation of CVE-2026-88131 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Dataverse
- CVE-2026-77903 Microsoft Dataverse Elevation of Privilege Vulnerability
- CVE-2025-47732 Microsoft Dataverse Remote Code Execution Vulnerability
- CVE-2025-29807 Microsoft Dataverse Remote Code Execution Vulnerability
- CVE-2024-38139 Microsoft Dataverse Elevation of Privilege Vulnerability
- CVE-2025-29826 Microsoft Dataverse Elevation of Privilege Vulnerability
Sources
Also known as GHSA-hvxr-qwg3-rpr3.