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PatchSiren cyber security CVE debrief

CVE-2026-41580 Stirling-Tools CVE debrief

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-15T16:16:45.223Z and has not been modified since then. The NVD entry is currently Analyzed. This vulnerability affects Stirling-PDF, a locally hosted web application for PDF operations, allowing crafted PDFs to execute attacker-controlled JavaScript in users' browsers prior to version 2.0.0 due to improper encoding or sanitization of PDF Title and Author metadata fields. The vulnerability has a CVSS score of 6.1 and is classified as MEDIUM severity. Evidence is based on official CVE and NVD records, as well as vendor advisories. To address this issue, it is crucial to upgrade Stirling-PDF to version 2.0.0 or later and implement additional security measures.

Vendor
Stirling-Tools
Product
Stirling-PDF
CVSS
MEDIUM 6.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-15
Original CVE updated
2026-07-30
Advisory published
2026-07-15
Advisory updated
2026-07-30

Who should care

Administrators and users of Stirling-PDF, especially those hosting the application, should be aware of this vulnerability. Additionally, security teams and IT professionals responsible for web application security and PDF handling should take note of this issue to ensure proper mitigation and protection measures are in place.

Technical summary

CVE-2026-41580 is a vulnerability in Stirling-PDF, a locally hosted web application for PDF operations. Prior to version 2.0.0, the /get-info-on-pdf endpoint did not properly encode or sanitize PDF Title and Author metadata fields. This allowed a crafted PDF to execute attacker-controlled JavaScript in the browser of a user viewing the resulting page. The vulnerability has a CVSS score of 6.1 and is classified as MEDIUM severity.

Defensive priority

Medium-priority defensive actions are recommended due to the CVSS score of 6.1 and the potential for user interaction.

Recommended defensive actions

  • Inventory and verify Stirling-PDF installations to identify potential vulnerabilities.
  • Upgrade Stirling-PDF to version 2.0.0 or later to address the vulnerability.
  • Implement additional monitoring and validation of user-uploaded PDF files.
  • Review and enhance input validation and sanitization for PDF metadata fields.
  • Educate users about the risks associated with viewing PDFs from untrusted sources.

Evidence notes

The CVE-2026-41580 issue involves a locally hosted web application, Stirling-PDF, which did not properly encode or sanitize PDF Title and Author metadata fields. This allowed crafted PDFs to execute attacker-controlled JavaScript in users' browsers prior to version 2.0.0. Evidence is based on official CVE and NVD records, as well as vendor advisories.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-41580 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-41580

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-41580 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-41580

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

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.