# fuse: publish io-uring queues with release semantics

CVE record · `CVE-2026-80858`

- **Identifiers:** `CVE-2026-80858`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 4 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 4 Sept 2026, 15:55 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: `24fe962c86f55347385933a1b06ca71b60854690 to before a5bb215dbc34b4c6a5e144ea1416bf66450d519f` (git)
  - affected: `24fe962c86f55347385933a1b06ca71b60854690 to before a1bb359c443d048fe5dfd6ca9caf4e3897f3e9aa` (git)
  - affected: `24fe962c86f55347385933a1b06ca71b60854690 to before 42df916e5a5f8fb4b60c8cefb54318d1ec02c580` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.14`
  - unaffected: `before 6.14` (semver)
  - unaffected: `6.18.51 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.3 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

No source has published a CVSS score for this record yet.

- **CISA KEV:** Not listed.
- **EPSS:** 0.0015, the 4th 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 4 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-80858](https://www.cve.org/CVERecord?id=CVE-2026-80858)
- [NVD: CVE-2026-80858](https://nvd.nist.gov/vuln/detail/CVE-2026-80858)

### References from the CNA

- <https://git.kernel.org/stable/c/a5bb215dbc34b4c6a5e144ea1416bf66450d519f>
- <https://git.kernel.org/stable/c/a1bb359c443d048fe5dfd6ca9caf4e3897f3e9aa>
- <https://git.kernel.org/stable/c/42df916e5a5f8fb4b60c8cefb54318d1ec02c580>

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-2026-80858>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-80858/>. Everything for agents: <https://agentprime.io/llms.txt>.