# exec: Cleanup POSIX timers right after de_thread()

CVE record · `CVE-2026-98260`

- **Identifiers:** `CVE-2026-98260`
- **State:** Confirmed
- **Severity:** CVSS 7.8 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 6 Oct 2026
- **Updated:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 6 Oct 2026, 08:45 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: `55e8c8eb2c7b6bf30e99423ccfe7ca032f498f59 to before f6c93e8ecaaf12959b7ef6eb611351001db2ff5d` (git)
  - affected: `55e8c8eb2c7b6bf30e99423ccfe7ca032f498f59 to before 6f1977cea3e85cd8ab55fb337d3e1725fe61d1ce` (git)
  - affected: `55e8c8eb2c7b6bf30e99423ccfe7ca032f498f59 to before d9ae467e617ca29b825493a362bf0d75ad5f4ac3` (git)
  - affected: `55e8c8eb2c7b6bf30e99423ccfe7ca032f498f59 to before 75aa08b93c65766040f9ca99f41ac85ad22596b6` (git)
  - affected: `55e8c8eb2c7b6bf30e99423ccfe7ca032f498f59 to before d602877baf36c43c788a5f472c977e0be414029f` (git)
  - affected: `55e8c8eb2c7b6bf30e99423ccfe7ca032f498f59 to before acb03d3881818581052924a9bbbe92b8741ed448` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.7`
  - unaffected: `before 5.7` (semver)
  - unaffected: `6.1.191 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.158 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.112 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.54 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.8 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:** 0.0019, the 8th percentile, on 10 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 6 Oct 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-98260](https://www.cve.org/CVERecord?id=CVE-2026-98260)
- [NVD: CVE-2026-98260](https://nvd.nist.gov/vuln/detail/CVE-2026-98260)

### References from the CNA

- <https://git.kernel.org/stable/c/f6c93e8ecaaf12959b7ef6eb611351001db2ff5d>
- <https://git.kernel.org/stable/c/6f1977cea3e85cd8ab55fb337d3e1725fe61d1ce>
- <https://git.kernel.org/stable/c/d9ae467e617ca29b825493a362bf0d75ad5f4ac3>
- <https://git.kernel.org/stable/c/75aa08b93c65766040f9ca99f41ac85ad22596b6>
- <https://git.kernel.org/stable/c/d602877baf36c43c788a5f472c977e0be414029f>
- <https://git.kernel.org/stable/c/acb03d3881818581052924a9bbbe92b8741ed448>

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-2026-98260>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98260/>. Everything for agents: <https://agentprime.io/llms.txt>.