# nfsd: gate nfs2 setacl by argp->mask

CVE record · `CVE-2026-89672`

- **Identifiers:** `CVE-2026-89672`
- **State:** Confirmed
- **Severity:** CVSS 9.1 Critical
- **Critical:** Yes: CVSS 9+
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 11 Sept 2026
- **Updated:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 11 Sept 2026, 19:45 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

## Critical

Critical, because:

- CVSS score 9.1: 9.0 or more.

How we decide what’s critical: <https://agentprime.io/advisories/critical.md>

## Affected products, as the CNA wrote them

- Vendor: Linux. Product: Linux.
  - affected: `a257cdd0e2179630d3201c32ba14d7fcb3c3a055 to before d00a2f81ba7c57045bd644971ddb6961c5efe3e0` (git)
  - affected: `a257cdd0e2179630d3201c32ba14d7fcb3c3a055 to before 760e7a4f92f597c61ab6b089f934a7e3acf238b7` (git)
  - affected: `a257cdd0e2179630d3201c32ba14d7fcb3c3a055 to before 54ff9c81d6b77de4540ba33a3b4d613ce3194863` (git)
  - affected: `a257cdd0e2179630d3201c32ba14d7fcb3c3a055 to before 8e4422b05f410f95c51b68a0db4bf1d87f6d22f5` (git)
  - affected: `a257cdd0e2179630d3201c32ba14d7fcb3c3a055 to before e41d173d9dc735cecb15ab7aa63ecab09338f81b` (git)
  - affected: `a257cdd0e2179630d3201c32ba14d7fcb3c3a055 to before f951b22dbeec46f2e0fba81cb80d1b0c686b61eb` (git)
  - affected: `a257cdd0e2179630d3201c32ba14d7fcb3c3a055 to before 37eea38e7898538f0ec5f1eb8b18d8646e4be41c` (git)
  - affected: `a257cdd0e2179630d3201c32ba14d7fcb3c3a055 to before a3a7e20ed66d3f04d37883c398da8a113b430769` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `2.6.13`
  - unaffected: `before 2.6.13` (semver)
  - unaffected: `5.10.273 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.224 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.191 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.157 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.109 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.50 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.4 to 7.2.*, inclusive` (semver)
  - unaffected: `7.3 to *, inclusive` (original_commit_for_fix)
  - Other versions: affected

## Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

## Severity and exploitation

- 9.1 Critical, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`, from CNA (Linux)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0060, the 49th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the CVE Program, published 11 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-89672](https://www.cve.org/CVERecord?id=CVE-2026-89672)
- [NVD: CVE-2026-89672](https://nvd.nist.gov/vuln/detail/CVE-2026-89672)

### References from the CNA

- <https://git.kernel.org/stable/c/d00a2f81ba7c57045bd644971ddb6961c5efe3e0>
- <https://git.kernel.org/stable/c/760e7a4f92f597c61ab6b089f934a7e3acf238b7>
- <https://git.kernel.org/stable/c/54ff9c81d6b77de4540ba33a3b4d613ce3194863>
- <https://git.kernel.org/stable/c/8e4422b05f410f95c51b68a0db4bf1d87f6d22f5>
- <https://git.kernel.org/stable/c/e41d173d9dc735cecb15ab7aa63ecab09338f81b>
- <https://git.kernel.org/stable/c/f951b22dbeec46f2e0fba81cb80d1b0c686b61eb>
- <https://git.kernel.org/stable/c/37eea38e7898538f0ec5f1eb8b18d8646e4be41c>
- <https://git.kernel.org/stable/c/a3a7e20ed66d3f04d37883c398da8a113b430769>

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2026-89672>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89672/>. Everything for agents: <https://agentprime.io/llms.txt>.