# xfs: fix capability check in xfs

CVE record · `CVE-2026-99131`

- **Identifiers:** `CVE-2026-99131`
- **State:** Confirmed
- **Severity:** CVSS 8.2 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 28 Oct 2026
- **Updated:** 31 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 28 Oct 2026, 10:34 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: `eba0549bc7d100691c13384b774346b8aa9cf9a9 to before 29f994db0447104a7a52fb6495193c80007cb66a` (git)
  - affected: `eba0549bc7d100691c13384b774346b8aa9cf9a9 to before e84bfb08016496ec5ce09a5ef9c813f23c060781` (git)
  - affected: `eba0549bc7d100691c13384b774346b8aa9cf9a9 to before 87881f816ab721d8a727cba20c36b9c71b489c8e` (git)
  - affected: `eba0549bc7d100691c13384b774346b8aa9cf9a9 to before 19a1a22029ad3ae3604c763af6bd1195cb73648f` (git)
  - affected: `eba0549bc7d100691c13384b774346b8aa9cf9a9 to before 7809ac0161c7c5f52ed348fb1ec683b2b454a83e` (git)
  - affected: `eba0549bc7d100691c13384b774346b8aa9cf9a9 to before e2f62a9744ebad3bcb6347a648e615026e9efeff` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.18`
  - unaffected: `before 5.18` (semver)
  - unaffected: `6.1.191 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.161 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.115 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.59 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.13 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0045, the 39th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 28 Oct 2026, 10:34 UTC: [Confirmed by the CVE List](https://www.cve.org/CVERecord?id=CVE-2026-99131)

## Sources

- [CVE List: CVE-2026-99131](https://www.cve.org/CVERecord?id=CVE-2026-99131)
- [NVD: CVE-2026-99131](https://nvd.nist.gov/vuln/detail/CVE-2026-99131)

### References from the CNA

- <https://git.kernel.org/stable/c/29f994db0447104a7a52fb6495193c80007cb66a>
- <https://git.kernel.org/stable/c/e84bfb08016496ec5ce09a5ef9c813f23c060781>
- <https://git.kernel.org/stable/c/87881f816ab721d8a727cba20c36b9c71b489c8e>
- <https://git.kernel.org/stable/c/19a1a22029ad3ae3604c763af6bd1195cb73648f>
- <https://git.kernel.org/stable/c/7809ac0161c7c5f52ed348fb1ec683b2b454a83e>
- <https://git.kernel.org/stable/c/e2f62a9744ebad3bcb6347a648e615026e9efeff>

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-2026-99131>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-99131/>. Everything for agents: <https://agentprime.io/llms.txt>.