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  4. CVE 2026 106140 deserialization of untrusted data in telerik
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Back to active CVEs
High · CVSS 7.3CVE-2026-106140

Deserialization of Untrusted Data in Telerik Reporting Report DesignersCVE-2026-106140

Answer in brief

CVE-2026-106140 records a High severity (CVSS 7.3) vulnerability in Deserialization of Untrusted Data in Telerik Reporting Report Designers. The current sources do not mark it as known exploited. The current feed maps Progress Software/Telerik Reporting (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 Nov 12, 2026Updated Nov 12, 2026Source checked Nov 12, 2026First seen by HOL Nov 12, 2026Material review Nov 12, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 7.3
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 7.3. 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 Progress Software/Telerik Reporting (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Progress Software/Telerik Reportinggeneric>=0 <20.3.26.111020.3.26.1110

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Progress Software/Telerik Reporting.
  2. 2Review the reported fix. Update Progress Software/Telerik Reporting to 20.3.26.1110 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Nov 12, 2026

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

  2. Source modified

    Nov 12, 2026

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

  3. First seen by HOL

    Nov 12, 2026

Sources and claim methodology

  • Source referencetelerik.com
Upstream source description

In Progress® Telerik® Reporting prior to version 20.3.26.1110, a deserialization of untrusted data vulnerability in the .NET Framework report designers allows a local attacker with low privileges to execute arbitrary code in the context of the designer process when the user performs certain editing operations.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • XML External Entity (XXE) Injection in Telerik Reporting SVG ProcessingSame progress software/telerik reporting package
  • Deserialization of Untrusted Data in Progress Telerik UI for WinFormsAlso CWE-502

Record context

Vulnerability class
Deserialization
EPSS
Not reported
CWE IDs
CWE-502
Source
CVE List V5
Source checked
Nov 12, 2026
References
1 linked source
Open source record