Multiple vulnerabilities in Progress Telerik (August 07, 2026)

unknownCVE-2026-13187 CVE-2026-13190 CVE-2026-14932 CVE-2026-14865 CVE-2026-13186 CVE-2026-13183

Multiple vulnerabilities have been discovered in Progress Telerik. Some of them allow an attacker to cause remote arbitrary code execution, remote denial of service and breach of data confidentiality.

CSIRTS triage

vendor: Progress product: Telerik Remote code execution Denial of service Information disclosure

What: Multiple vulnerabilities in Telerik allow remote code execution, denial of service, and data confidentiality breach.
Who is affected: Telerik deployments of unspecified versions are affected.
Urgency: High urgency; multiple RCE and DoS vectors present active attack surface.
Action: Apply patches from Progress for the affected Telerik products immediately upon availability.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: CERT-FR Avis de sécurité (FR · national-cert · site)
Severity: unknown
Published: 2026-08-07
Exploitation: Not in CISA KEV at last sync
Language: Machine-translated to English — verify against the original

Original advisory: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-0977/

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-131870.34% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 27% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-131900.48% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 39% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-149320.21% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 11% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-148650.26% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 17% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-131860.53% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 42% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-131830.32% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 24% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-131850.49% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 39% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-131810.48% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 39% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-131920.24% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 16% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-131820.32% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 24% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-13187	coverage & exploitation status	NVD · CVE.org
CVE-2026-13190	coverage & exploitation status	NVD · CVE.org
CVE-2026-14932	coverage & exploitation status	NVD · CVE.org
CVE-2026-14865	coverage & exploitation status	NVD · CVE.org
CVE-2026-13186	coverage & exploitation status	NVD · CVE.org
CVE-2026-13183	coverage & exploitation status	NVD · CVE.org
CVE-2026-13185	coverage & exploitation status	NVD · CVE.org
CVE-2026-13181	coverage & exploitation status	NVD · CVE.org
CVE-2026-13192	coverage & exploitation status	NVD · CVE.org
CVE-2026-13182	coverage & exploitation status	NVD · CVE.org
CVE-2026-13188	coverage & exploitation status	NVD · CVE.org
CVE-2026-13189	coverage & exploitation status	NVD · CVE.org
CVE-2026-13184	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for Progress Telerik

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

mediumCVE-2026-14932: In Progress® Telerik® UI for AJAX prior to v2026.2.708, the obsolete RadChart component's Char…nvd · 2026-07-22
mediumCVE-2026-14865: In Progress® Telerik® UI for AJAX prior to v2026.2.708, the internal LayoutBuilder control pro…nvd · 2026-07-22
mediumCVE-2026-13192: In Progress® Telerik® UI for AJAX prior to v2026.2.708, insufficient validation of content sub…nvd · 2026-07-22
highCVE-2026-13190: In Progress® Telerik® UI for AJAX prior to v2026.2.708, a deserialization vulnerability in the…nvd · 2026-07-22
highCVE-2026-13189: In Progress® Telerik® UI for AJAX prior to v2026.2.708, insufficient validation of the languag…nvd · 2026-07-22
mediumCVE-2026-13188: In Progress® Telerik® UI for AJAX prior to v2026.2.708, DialogHandler request parameters may b…nvd · 2026-07-22