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-2026-0992
Red Hat Red Hat Hardened Images — Libxml2: libxml2: denial of service via crafted xml catalogs
AV AC PR UI S C I A CVSS EPSS %ile KEV
L H N N U N N L 2.9 .0046 38.1 —
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-2026-0992 (Red Hat Hardened Images). Public exploit reference added.
Aug 31 EXPLOIT PUBLISHED — CVE-2026-0992 (Red Hat Hardened Images). Public exploit reference added.
Sep 1 EXPLOIT PUBLISHED — CVE-2026-0992 (Red Hat Hardened Images). Public exploit reference added.
Description
A flaw was found in the libxml2 library. This uncontrolled resource consumption vulnerability occurs when processing XML catalogs that contain repeated <nextCatalog> elements pointing to the same downstream catalog. A remote attacker can exploit this by supplying crafted catalogs, causing the parser to redundantly traverse catalog chains. This leads to excessive CPU consumption and degrades application availability, resulting in a denial-of-service condition.
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-2026-0992 (Red Hat Hardened Images). Public exploit reference added. |
| August 31, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-0992 (Red Hat Hardened Images). Public exploit reference added. |
| September 1, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-0992 (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-2026-0992 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.
