PatchSiren cyber security CVE debrief
CVE-2026-14932 Progress Software CVE debrief
A vulnerability was found in Progress Telerik UI for AJAX prior to v2026.2.708. The obsolete RadChart component's ChartImage.axd handler is vulnerable to unauthenticated file read and deletion of image-extension files within the application directory. This issue arises from the ChartImage.axd handler allowing unauthenticated access, which can lead to unauthorized file operations. Users of Progress Telerik UI for AJAX prior to v2026.2.708 should be aware of this vulnerability and take necessary actions to protect their applications. The vulnerability has a CVSS score of 6.5 and a severity of MEDIUM, indicating a moderate level of risk. To mitigate this vulnerability, users should update Progress Telerik UI for AJAX to v2026.2.708 or later and restrict access to the ChartImage.axd handler. Additionally, monitoring for suspicious activity related to file read and deletion is recommended. Compensating controls should be reviewed for exposed systems while remediation is scheduled and verified. Relevant monitoring, detection, and logs should be checked for exposed assets that need extra review. Asset inventory and rollback/change windows should also be considered for affected systems.
- Vendor
- Progress Software
- Product
- Telerik UI for ASP.NET AJAX
- CVSS
- MEDIUM 6.5
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-07-22
- Original CVE updated
- 2026-08-06
- Advisory published
- 2026-07-22
- Advisory updated
- 2026-08-06
Who should care
Users of Progress Telerik UI for AJAX prior to v2026.2.708 should be aware of this vulnerability and take necessary actions to protect their applications.
Technical summary
The CVE-2026-14932 vulnerability is related to the RadChart component in Progress Telerik UI for AJAX. The ChartImage.axd handler in this component allows unauthenticated access, which can lead to file read and deletion of image-extension files within the application directory. This vulnerability has a CVSS score of 6.5 and a severity of MEDIUM.
Defensive priority
High priority should be given to updating Progress Telerik UI for AJAX to v2026.2.708 or later to mitigate this vulnerability, as it is a medium severity vulnerability with a CVSS score of 6.5 and potential for unauthenticated file read and deletion of image-extension files within the application directory. Additionally, users should restrict access to the ChartImage.axd handler and monitor for suspicious activity related to file read and deletion. Compensating controls should be reviewed for exposed systems while remediation is scheduled and verified. Relevant monitoring, detection, and logs should be checked for exposed assets that need extra review. Asset inventory and rollback/change windows should also be considered for affected systems. The vulnerability has a CVSS score of 6.5 and a severity of MEDIUM, indicating a moderate level of risk. However, given the potential impact of unauthenticated file read and deletion, it is essential to prioritize updates and mitigations. The CVE record and NVD entry provide further details on the vulnerability and its potential impact. Users should review these sources and plan accordingly. The recommended actions include updating Progress Telerik UI for AJAX to v2026.2.708 or later, restricting access to the ChartImage.axd handler, monitoring for suspicious activity related to file read and deletion, reviewing compensating controls for exposed systems, and checking relevant monitoring, detection, and logs for exposed assets that need extra review. Asset inventory and rollback/change windows should also be considered for affected systems. The goal is to minimize the risk associated with this vulnerability and prevent potential exploitation. By prioritizing updates and mitigations, users can reduce the risk of unauthenticated file read and deletion of image-extension files within the application directory. The vulnerability is related to the RadChart component in Progress Telerik UI for AJAX, and the ChartImage.axd handler allows unauthenticated access, which can lead to file read and deletion of image-extension files within the application directory. Users should be aware of this vulnerability and take necessary actions to
Recommended defensive actions
- Update Progress Telerik UI for AJAX to v2026.2.708 or later
- Restrict access to the ChartImage.axd handler
- Monitor for suspicious activity related to file read and deletion
Evidence notes
The CVE record was published on 2026-07-22T14:17:15.283Z and was last modified on 2026-07-22T20:16:48.487Z. The NVD entry is currently Undergoing Analysis. This information is based on the NVD entry and the CVE record. The vulnerability affects Progress Telerik UI for AJAX prior to v2026.2.708. Users should verify their deployments and plan for updates or mitigations.
Sources and references
Verified primary and authoritative sources
-
CVE-2026-14932 CVE Program record
Publisher, destination, and source semantics verified
URL: https://www.cve.org/CVERecord?id=CVE-2026-14932
CVE Program - Official CVE Program record with source-provided CVE metadata.
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CVE-2026-14932 NVD vulnerability detail
Publisher, destination, and source semantics verified
URL: https://nvd.nist.gov/vuln/detail/CVE-2026-14932
NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.
Supplemental references
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Source reference
Unverified legacy reference
URL: https://www.telerik.com/products/aspnet-ajax/documentation/knowledge-base/kb-security-radchart-hardcoded-key-file-read-cve-2026-14932
Methodology and review provenance
AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.