# scsi: libiscsi_tcp: Check the data direction of a Data-In PDU

CVE record · `CVE-2026-98479`

- **Identifiers:** `CVE-2026-98479`
- **State:** Confirmed
- **Severity:** CVSS 7.5 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 18 Oct 2026
- **Updated:** 24 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 18 Oct 2026, 15:15 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: `a081c13e39b5c17052a7b46fafa61019c4c110ff to before 79991b770fc3685b1d5cf805b659a879edd19931` (git)
  - affected: `a081c13e39b5c17052a7b46fafa61019c4c110ff to before 8db1232945bc663fb94f300090a1fc108de99296` (git)
  - affected: `a081c13e39b5c17052a7b46fafa61019c4c110ff to before 94e5bdd08e51c450d954bc592f591c233ca5c9df` (git)
  - affected: `a081c13e39b5c17052a7b46fafa61019c4c110ff to before de96dc11aee0d058927bff94a168e3c5c46483e2` (git)
  - affected: `a081c13e39b5c17052a7b46fafa61019c4c110ff to before e3b25bf2cf2496e85bc05b33360faf9fdf880e03` (git)
  - affected: `a081c13e39b5c17052a7b46fafa61019c4c110ff to before ee56b5e18f566c0b5a183379dcd63d402cebf2f8` (git)
  - affected: `a081c13e39b5c17052a7b46fafa61019c4c110ff to before 24ffc919467d20951f0f132d1c75294e2e91e09b` (git)
  - affected: `a081c13e39b5c17052a7b46fafa61019c4c110ff to before bce07e2f37b5e4a427d36fd6b1c14067b27591db` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `2.6.29`
  - unaffected: `before 2.6.29` (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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0039, the 33rd 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 18 Oct 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-98479](https://www.cve.org/CVERecord?id=CVE-2026-98479)
- [NVD: CVE-2026-98479](https://nvd.nist.gov/vuln/detail/CVE-2026-98479)

### References from the CNA

- <https://git.kernel.org/stable/c/79991b770fc3685b1d5cf805b659a879edd19931>
- <https://git.kernel.org/stable/c/8db1232945bc663fb94f300090a1fc108de99296>
- <https://git.kernel.org/stable/c/94e5bdd08e51c450d954bc592f591c233ca5c9df>
- <https://git.kernel.org/stable/c/de96dc11aee0d058927bff94a168e3c5c46483e2>
- <https://git.kernel.org/stable/c/e3b25bf2cf2496e85bc05b33360faf9fdf880e03>
- <https://git.kernel.org/stable/c/ee56b5e18f566c0b5a183379dcd63d402cebf2f8>
- <https://git.kernel.org/stable/c/24ffc919467d20951f0f132d1c75294e2e91e09b>
- <https://git.kernel.org/stable/c/bce07e2f37b5e4a427d36fd6b1c14067b27591db>

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-2026-98479>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98479/>. Everything for agents: <https://agentprime.io/llms.txt>.