CVE-2026-20631 Privilege escalation in macOS
High 8.4
Published
Updated
Check this codebase for CVE-2026-20631 and fix it if it is affected.
What it is: CVE-2026-20631 is a high-severity vulnerability in Apple Macos, published on 25 Mar 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-2026-20631 in the wild and no public exploit code.
Affected product: Apple Macos. 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-2026-20631/ (Markdown: https://insights.sbomify.com/CVE-2026-20631/index.md)
A logic flaw in macOS allows a local user to elevate privileges, requiring an update to the operating system.
- 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-2026-20631?
CVE-2026-20631 is a high-severity vulnerability in Apple Macos, published on 25 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A logic issue was addressed with improved checks. This issue is fixed in macOS Tahoe 26.4. A user may be able to elevate privileges.
Which versions are affected by CVE-2026-20631?
It affects 1 product.
Products include Apple Macos.
How do I fix CVE-2026-20631?
No fix has been published for CVE-2026-20631 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-20631 being exploited?
There is no known exploitation of CVE-2026-20631 in the wild and no public exploit code.
Other vulnerabilities in Apple Macos
Sources
Also known as GHSA-8cv4-qwjg-mxw5.