CVE-2026-88088 Microsoft SQL Server Elevation of Privilege Vulnerability
High 7.0
Published
Updated
Check this codebase for CVE-2026-88088 and fix it if it is affected.
What it is: CVE-2026-88088 is a high-severity vulnerability in Microsoft SQL Server 2019 (GDR), published on 13 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-88088 in the wild and no public exploit code.
Affected product: Microsoft SQL Server 2019 (GDR). No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2026-88088/ (Markdown: https://insights.sbomify.com/CVE-2026-88088/index.md)
An integer overflow in Microsoft SQL Server allows an authorized local attacker to elevate privileges.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-88088?
CVE-2026-88088 is a high-severity vulnerability in Microsoft SQL Server 2019 (GDR), published on 13 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Integer overflow or wraparound in SQL Server allows an authorized attacker to elevate privileges locally.
Weakness: CWE-190
Which versions are affected by CVE-2026-88088?
How do I fix CVE-2026-88088?
No fix has been published for CVE-2026-88088 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-88088 being exploited?
There is no known exploitation of CVE-2026-88088 in the wild and no public exploit code.
Sources
Also known as GHSA-cq5w-wjc2-jwf2.