# nvmet: fix heap out-of-bounds read in nvmet_auth_negotiate()

CVE record · `CVE-2026-90230`

- **Identifiers:** `CVE-2026-90230`
- **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:** 17 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 17 Sept 2026, 16:07 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: `db1312dd95488b5e6ff362ff66fcf953a46b1821 to before 89ff11b72f38976f3b5aea23a5228ee05e277209` (git)
  - affected: `db1312dd95488b5e6ff362ff66fcf953a46b1821 to before aaac783950b17c57df9b6f7344747cacb1a407ed` (git)
  - affected: `db1312dd95488b5e6ff362ff66fcf953a46b1821 to before c38a8186326799957d293d370136c128cd113916` (git)
  - affected: `db1312dd95488b5e6ff362ff66fcf953a46b1821 to before 7b81e4d2230e3d2d372c826180c4ef0efc244f31` (git)
  - affected: `db1312dd95488b5e6ff362ff66fcf953a46b1821 to before 5bb96cc218835769ab74ec7f3ea2bf81fbffe955` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.0`
  - unaffected: `before 6.0` (semver)
  - unaffected: `6.6.157 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.110 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.52 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.6 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:N/A:H`, from CNA (Linux)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0046, the 40th percentile, on 13 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 17 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-90230](https://www.cve.org/CVERecord?id=CVE-2026-90230)
- [NVD: CVE-2026-90230](https://nvd.nist.gov/vuln/detail/CVE-2026-90230)

### References from the CNA

- <https://git.kernel.org/stable/c/89ff11b72f38976f3b5aea23a5228ee05e277209>
- <https://git.kernel.org/stable/c/aaac783950b17c57df9b6f7344747cacb1a407ed>
- <https://git.kernel.org/stable/c/c38a8186326799957d293d370136c128cd113916>
- <https://git.kernel.org/stable/c/7b81e4d2230e3d2d372c826180c4ef0efc244f31>
- <https://git.kernel.org/stable/c/5bb96cc218835769ab74ec7f3ea2bf81fbffe955>

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-2026-90230>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-90230/>. Everything for agents: <https://agentprime.io/llms.txt>.