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Back to active CVEs
Low · CVSS 1.9CVE-2026-107590

Out-of-bounds write vulnerability in QTextCodec iconv-based encoding impacts QtCVE-2026-107590

Answer in brief

CVE-2026-107590 records a Low severity (CVSS 1.9) vulnerability in Out-of-bounds write vulnerability in QTextCodec iconv-based encoding impacts Qt. The current sources do not mark it as known exploited. The current feed maps qt/Qt (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 27, 2026Updated Oct 27, 2026Source checked Oct 27, 2026First seen by HOL Oct 27, 2026Material review Oct 27, 2026
Upstream Advisory

Key facts

Risk
Low · CVSS 1.9
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 1.9. 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 qt/Qt (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
qt/Qtgeneric>=4.5.0 <=6.8.8 || >=6.9.0 <=6.11.2Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for qt/Qt.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Oct 27, 2026

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

  2. Source modified

    Oct 27, 2026

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

  3. First seen by HOL

    Oct 27, 2026

Sources and claim methodology

  • Source referencecodereview.qt-project.org
  • Source referencewiki.qt.io
Upstream source description

An out-of-bounds write vulnerability in the Qt QTextCodec iconv-based encoding of the Qt 5 Compatibility APIs module (Qt Core in Qt 5 and earlier) impacts Qt. Under certain conditions, encoding text with QTextCodec may write outside an internal buffer. This can cause the application to crash and may affect data integrity.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Memory Corruption
EPSS
Not reported
CWE IDs
CWE-787, CWE-131
Source
CVE List V5
Source checked
Oct 27, 2026
References
2 linked sources
Open source record