Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
CVE-2026-0989
Red Hat Red Hat Hardened Images — Libxml2: unbounded relaxng include recursion leading to stack overflow
AV AC PR UI S C I A CVSS EPSS %ile KEV
N H N N U N N L 3.7 .0054 43.3 —
AFFECTED
Product Versions Fixed
Red Hat Hardened Images unspecified 2.15.2-0.3.hum1
Red Hat Enterprise Linux 10 unspecified —
Red Hat Enterprise Linux 6 unspecified —
Red Hat Enterprise Linux 7 unspecified —
Red Hat Enterprise Linux 8 unspecified —
Red Hat Enterprise Linux 9 unspecified —
Red Hat JBoss Core Services unspecified —
Red Hat OpenShift Container Platform 4 unspecified —
Red Hat OpenShift Container Platform 4 unspecified —
TIMELINE
Jan 15 Reserved by redhat
Jan 15 Published (CNA: redhat)
Aug 21 EXPLOIT PUBLISHED — CVE-2026-0989 (Red Hat Hardened Images). Public exploit reference added.
Aug 31 EXPLOIT PUBLISHED — CVE-2026-0989 (Red Hat Hardened Images). Public exploit reference added.
Sep 1 EXPLOIT PUBLISHED — CVE-2026-0989 (Red Hat Hardened Images). Public exploit reference added.
Description
A flaw was identified in the RelaxNG parser of libxml2 related to how external schema inclusions are handled. The parser does not enforce a limit on inclusion depth when resolving nested <include> directives. Specially crafted or overly complex schemas can cause excessive recursion during parsing. This may lead to stack exhaustion and application crashes, creating a denial-of-service risk.
Lifecycle
Complete event history — 5 events, chronological
| Date | Event | Detail |
|---|
| January 15, 2026 | Reserved | Reserved by redhat |
| January 15, 2026 | Published | Published (CNA: redhat) |
| August 21, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-0989 (Red Hat Hardened Images). Public exploit reference added. |
| August 31, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-0989 (Red Hat Hardened Images). Public exploit reference added. |
| September 1, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-0989 (Red Hat Hardened Images). Public exploit reference added. |
Affected
Affected products and packages — 9 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| Red Hat | Red Hat Hardened Images | — | — | 2.15.2-0.3.hum1 |
| Red Hat | Red Hat Enterprise Linux 10 | — | — | — |
| Red Hat | Red Hat Enterprise Linux 6 | — | — | — |
| Red Hat | Red Hat Enterprise Linux 7 | — | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — | — |
| Red Hat | Red Hat JBoss Core Services | — | — | — |
| Red Hat | Red Hat OpenShift Container Platform 4 | — | — | — |
| Red Hat | Red Hat OpenShift Container Platform 4 | — | — | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-0989 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 Sunday, October 4, 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.
