# netfilter: bpf: reject invalid NAT manipulation types

CVE record · `CVE-2026-98793`

- **Identifiers:** `CVE-2026-98793`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 18 Oct 2026
- **Updated:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 18 Oct 2026, 15:48 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: `0fabd2aa199faeb8754aee94658f2c48ccb2c8c3 to before ce7b41f0e4b5db0580d0a2059a0c9e672b461b5e` (git)
  - affected: `0fabd2aa199faeb8754aee94658f2c48ccb2c8c3 to before 752492947be3123ea6c689e2f93ae04ecd675d42` (git)
  - affected: `0fabd2aa199faeb8754aee94658f2c48ccb2c8c3 to before ea777dc90ab37e64fa4b92f6fcf3b5edcef5e058` (git)
  - affected: `0fabd2aa199faeb8754aee94658f2c48ccb2c8c3 to before f6143ae109df56d51d5536e813deb19eee7a6205` (git)
  - affected: `0fabd2aa199faeb8754aee94658f2c48ccb2c8c3 to before 58108f05b0502448f6bb612ee2eccc63bd6449cb` (git)
  - affected: `0fabd2aa199faeb8754aee94658f2c48ccb2c8c3 to before 16d464013ec2267b00a83f4bfbb97b3ecc63bfa7` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.1`
  - unaffected: `before 6.1` (semver)
  - unaffected: `6.1.191 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.160 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.113 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.56 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.10 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:** 0.0017, the 6th percentile, on 7 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 18 Oct 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-98793](https://www.cve.org/CVERecord?id=CVE-2026-98793)
- [NVD: CVE-2026-98793](https://nvd.nist.gov/vuln/detail/CVE-2026-98793)

### References from the CNA

- <https://git.kernel.org/stable/c/ce7b41f0e4b5db0580d0a2059a0c9e672b461b5e>
- <https://git.kernel.org/stable/c/752492947be3123ea6c689e2f93ae04ecd675d42>
- <https://git.kernel.org/stable/c/ea777dc90ab37e64fa4b92f6fcf3b5edcef5e058>
- <https://git.kernel.org/stable/c/f6143ae109df56d51d5536e813deb19eee7a6205>
- <https://git.kernel.org/stable/c/58108f05b0502448f6bb612ee2eccc63bd6449cb>
- <https://git.kernel.org/stable/c/16d464013ec2267b00a83f4bfbb97b3ecc63bfa7>

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-2026-98793>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98793/>. Everything for agents: <https://agentprime.io/llms.txt>.