# strparser: make sure \_\_strp_recv isn't running before tearing down the parser

CVE record · `CVE-2026-99056`

- **Identifiers:** `CVE-2026-99056`
- **State:** Confirmed
- **Severity:** CVSS 7.8 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 23 Oct 2026
- **Updated:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 23 Oct 2026, 12:22 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: `e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 to before b09071e2f8460b35c7d355addad0fc7b31c6904d` (git)
  - affected: `e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 to before 933df60a465b1b82ff92dcd6870504da90ba4e9b` (git)
  - affected: `e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 to before 61cc5dac60d50dee06cf5c7b7ab246f9c825a715` (git)
  - affected: `e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 to before a18dd388045dc7263d99a07db9de4e0f149ca8f1` (git)
  - affected: `e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 to before 9f3e9fe1b155e9b4572054d8d140586bc3512ecf` (git)
  - affected: `e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 to before d2b5f637b9b67a79a50d42614d10653c13b4e449` (git)
  - affected: `e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 to before eaa3a29004c063d7e9d5ea55636f693f67e6db0f` (git)
  - affected: `e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 to before 0984ebc631792acf8fff105112ee74a6b8f1efcc` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.6`
  - unaffected: `before 5.6` (semver)
  - unaffected: `5.10.273 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.224 to 5.15.*, inclusive` (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: `6.18.57 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.11 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 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 23 Oct 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-99056](https://www.cve.org/CVERecord?id=CVE-2026-99056)
- [NVD: CVE-2026-99056](https://nvd.nist.gov/vuln/detail/CVE-2026-99056)

### References from the CNA

- <https://git.kernel.org/stable/c/b09071e2f8460b35c7d355addad0fc7b31c6904d>
- <https://git.kernel.org/stable/c/933df60a465b1b82ff92dcd6870504da90ba4e9b>
- <https://git.kernel.org/stable/c/61cc5dac60d50dee06cf5c7b7ab246f9c825a715>
- <https://git.kernel.org/stable/c/a18dd388045dc7263d99a07db9de4e0f149ca8f1>
- <https://git.kernel.org/stable/c/9f3e9fe1b155e9b4572054d8d140586bc3512ecf>
- <https://git.kernel.org/stable/c/d2b5f637b9b67a79a50d42614d10653c13b4e449>
- <https://git.kernel.org/stable/c/eaa3a29004c063d7e9d5ea55636f693f67e6db0f>
- <https://git.kernel.org/stable/c/0984ebc631792acf8fff105112ee74a6b8f1efcc>

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-2026-99056>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-99056/>. Everything for agents: <https://agentprime.io/llms.txt>.