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  4. CVE 2026 108063 libhangul null pointer dereference in hanjanew
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Back to active CVEs
Medium · CVSS 5.5CVE-2026-108063

Libhangul: null pointer dereference in hanja_new() when looking up a malformed hanja dictionary entryCVE-2026-108063

Answer in brief

CVE-2026-108063 records a Medium severity (CVSS 5.5) vulnerability in Libhangul: null pointer dereference in hanja_new() when looking up a malformed hanja dictionary entry. The current sources do not mark it as known exploited. The current feed maps Red Hat/libhangul (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 9, 2026Updated Oct 9, 2026Source checked Oct 9, 2026First seen by HOL Oct 9, 2026Material review Oct 9, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 5.5
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Not reported

Why this deserves its current priority

CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Red Hat/libhangul (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Red Hat/libhangulgeneric*Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Red Hat/libhangul.
  2. 2Review the reported fix. Source-reported workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

Evidence timeline and material changes

  1. Published upstream

    Oct 9, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 9, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 9, 2026

Sources and claim methodology

  • Source referenceaccess.redhat.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
Upstream source description

A flaw was found in libhangul. When parsing Hanja dictionary files, the library fails to verify that an entry contains a valid value alongside its key. By providing a specially crafted dictionary file to an application that queries it, an attacker can trigger an unexpected application crash, resulting in a Denial of Service (DoS).

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • NULL pointer dereference in illumos nwamd door handler allows local users to crash the daemonAlso CWE-476
  • Grid Protection Alliance openPDC and openHistorian Deserialization of Untrusted DataSame generic ecosystem
  • Grid Protection Alliance openPDC and openHistorian Server-Side Request Forgery (SSRF)Same generic ecosystem
  • Reachable assertion in illumos bhyve REP string instruction emulation allows guest to panic hostSame generic ecosystem
  • Apache Camel Karavan: project file name path traversal when committing a project to GitSame generic ecosystem
  • Apache Camel Karavan: unvalidated Kubernetes resources applied from a project's kubernetes.yamlSame generic ecosystem

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-476
Source
CVE List V5
Source checked
Oct 9, 2026
References
3 linked sources
Open source record