# bpf: Disallow bpf_skb_pull_data() for LWT_SEG6LOCAL

CVE record · `CVE-2026-98383`

- **Identifiers:** `CVE-2026-98383`
- **State:** Confirmed
- **Severity:** CVSS 7.8 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 9 Oct 2026
- **Updated:** 24 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 9 Oct 2026, 07:34 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: `004d4b274e2a1a895a0e5dc66158b90a7d463d44 to before 0f38472a2aa8704a6b514c0dfa9c32f3672b8f32` (git)
  - affected: `004d4b274e2a1a895a0e5dc66158b90a7d463d44 to before cae8674489f26edf7553fdd660599466cbb4c32f` (git)
  - affected: `004d4b274e2a1a895a0e5dc66158b90a7d463d44 to before 9f9e57b5a3a033f95f49ef9d541340cdbcb80abb` (git)
  - affected: `004d4b274e2a1a895a0e5dc66158b90a7d463d44 to before df0072be6fc373cb22f9ea854d458b04e32a03cf` (git)
  - affected: `004d4b274e2a1a895a0e5dc66158b90a7d463d44 to before b9bb0e735460751b620156f800a4279a28573392` (git)
  - affected: `004d4b274e2a1a895a0e5dc66158b90a7d463d44 to before 37b18688cd18fd86d2f35c212df1611862a26cd5` (git)
  - affected: `004d4b274e2a1a895a0e5dc66158b90a7d463d44 to before fca71ead7a20290af1e2046983eeafae43d21af1` (git)
  - affected: `004d4b274e2a1a895a0e5dc66158b90a7d463d44 to before e4a62833adff6ef0fe7c0b90393204fe3c26b5c5` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `4.18`
  - unaffected: `before 4.18` (semver)
  - unaffected: `5.10.271 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.222 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.189 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.158 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.112 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.55 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.9 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0016, the 5th percentile, on 8 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 9 Oct 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-98383](https://www.cve.org/CVERecord?id=CVE-2026-98383)
- [NVD: CVE-2026-98383](https://nvd.nist.gov/vuln/detail/CVE-2026-98383)

### References from the CNA

- <https://git.kernel.org/stable/c/0f38472a2aa8704a6b514c0dfa9c32f3672b8f32>
- <https://git.kernel.org/stable/c/cae8674489f26edf7553fdd660599466cbb4c32f>
- <https://git.kernel.org/stable/c/9f9e57b5a3a033f95f49ef9d541340cdbcb80abb>
- <https://git.kernel.org/stable/c/df0072be6fc373cb22f9ea854d458b04e32a03cf>
- <https://git.kernel.org/stable/c/b9bb0e735460751b620156f800a4279a28573392>
- <https://git.kernel.org/stable/c/37b18688cd18fd86d2f35c212df1611862a26cd5>
- <https://git.kernel.org/stable/c/fca71ead7a20290af1e2046983eeafae43d21af1>
- <https://git.kernel.org/stable/c/e4a62833adff6ef0fe7c0b90393204fe3c26b5c5>

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-2026-98383>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98383/>. Everything for agents: <https://agentprime.io/llms.txt>.