boxscore/security
CVE · referencelatest edition

Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-89603

CVE-2026-89603HIGH
Linux Linux — entry: Fix seccomp bypass after ptrace with TSYNC
  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   L   N  C  H  H  N    8.4   .0014    3.2     —
AFFECTED
  Product  Versions                                    Fixed
  Linux    142781e108b13b2b0e8f035cfb5bfbbc8f14d887 –  —
  Linux    5.9 –                                       5.10.270
TIMELINE
  Sep 11  Reserved by Linux
  Sep 11  Published (CNA: Linux)
  Oct 15  REJECTED — CVE-2026-89603 (Linux). Record withdrawn by the CNA.
CNA: Linux · CVSS v3.1 · 8 references · NVD status: Rejected

Description

This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.

Lifecycle

Complete event history — 3 events, chronological
DateEventDetail
September 11, 2026ReservedReserved by Linux
September 11, 2026PublishedPublished (CNA: Linux)
October 15, 2026REJECTEDREJECTED — CVE-2026-89603 (Linux). Record withdrawn by the CNA.

Affected

Affected products and packages — 2 rows
VendorProduct / PackageEcosystemVersion introducedFixed
LinuxLinux—142781e108b13b2b0e8f035cfb5bfbbc8f14d887—
LinuxLinux—5.95.10.270

References (8)

Related

Authoritative record: CVE-2026-89603 at cve.org

Vendors: linux

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-89603 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.