# nfsd: fix nfsd_file leak on inter-server COPY setup failure

CVE record · `CVE-2026-89680`

- **Identifiers:** `CVE-2026-89680`
- **State:** Confirmed
- **Severity:** CVSS 7.5 High
- **Critical:** No
- **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, 19:46 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.

## Affected products, as the CNA wrote them

- Vendor: Linux. Product: Linux.
  - affected: `ce0887ac96d35c7105090e166bb0807dc0a0e838 to before d15f76fddc5d0215db5f18851048376a1ea79bd6` (git)
  - affected: `ce0887ac96d35c7105090e166bb0807dc0a0e838 to before eb22420e5bd6eb3afa1f840036bb08a7ac90db76` (git)
  - affected: `ce0887ac96d35c7105090e166bb0807dc0a0e838 to before 94c28af6fd89cb204975e49b824f8ee521bb84e9` (git)
  - affected: `ce0887ac96d35c7105090e166bb0807dc0a0e838 to before ab949252fdf102ae74329a0caa7995a849d0dafa` (git)
  - affected: `ce0887ac96d35c7105090e166bb0807dc0a0e838 to before 1a6a41b848455bf6ba2c9da2dfb0730e608ce7ab` (git)
  - affected: `ce0887ac96d35c7105090e166bb0807dc0a0e838 to before 424d5c95108a4809b832cb0a312c61de4aec0078` (git)
  - affected: `ce0887ac96d35c7105090e166bb0807dc0a0e838 to before 6ed8d6de7ec90c4ba84eb82673058f506e5777fd` (git)
  - affected: `ce0887ac96d35c7105090e166bb0807dc0a0e838 to before 88a76145451d703eedd867b5989bf73d17340399` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.6`
  - unaffected: `before 5.6` (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: `6.6.160 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0074, the 55th 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-2026-89680](https://www.cve.org/CVERecord?id=CVE-2026-89680)
- [NVD: CVE-2026-89680](https://nvd.nist.gov/vuln/detail/CVE-2026-89680)

### References from the CNA

- <https://git.kernel.org/stable/c/d15f76fddc5d0215db5f18851048376a1ea79bd6>
- <https://git.kernel.org/stable/c/eb22420e5bd6eb3afa1f840036bb08a7ac90db76>
- <https://git.kernel.org/stable/c/94c28af6fd89cb204975e49b824f8ee521bb84e9>
- <https://git.kernel.org/stable/c/ab949252fdf102ae74329a0caa7995a849d0dafa>
- <https://git.kernel.org/stable/c/1a6a41b848455bf6ba2c9da2dfb0730e608ce7ab>
- <https://git.kernel.org/stable/c/424d5c95108a4809b832cb0a312c61de4aec0078>
- <https://git.kernel.org/stable/c/6ed8d6de7ec90c4ba84eb82673058f506e5777fd>
- <https://git.kernel.org/stable/c/88a76145451d703eedd867b5989bf73d17340399>

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-2026-89680>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89680/>. Everything for agents: <https://agentprime.io/llms.txt>.