CVE Feed

    Dashboard / CVE / CVE-2026-33438

    CVE-2026-33438

    Stirling-PDF is a locally hosted web application that allows you to perform various operations on PDF files. Versions starting in 2.1.5 and prior to 2.5.2 have Denial of Service (DoS) vulnerability in the Stirling-PDF watermark functionality (`/api/v1/security/add-watermark` endpoint). The vulnerability allows authenticated users to cause resource exhaustion and server crashes by providing extreme values for the `fontSize` and `widthSpacer` parameters. Version 2.5.2 patches the issue.

    Published:Mar 26, 2026
    Last Modified:Apr 2, 2026
    EPS:Mar 26, 2026
    EPSS Score:0.00047
    CVSS Score:6.5

    Affected Products

    Vendor
    Stirling
    Product
    Stirling Pdf
    Vendor
    Stirlingpdf
    Product
    Stirling Pdf

    Exploits

    https://github.com/Stirling-Tools/Stirling-PDF/security/advisories/GHSA-3932-2rfq-87xmhttps://github.com/Stirling-Tools/Stirling-PDF/security/advisories/GHSA-3932-2rfq-87xm

    Related CVEs

    CVE-2026-57485 (CVSS 8.5) — Stirling-PDF is a locally hosted web application that facilitates various operations on PDF files. Prior to 2.…
    CVE-2026-33437 (CVSS 8.1) — Stirling-PDF is a locally hosted web application that facilitates various operations on PDF files. Prior to 2.…
    CVE-2026-71270 (CVSS 8.6) — Stirling-PDF's POST /api/v1/convert/url/pdf endpoint (ConvertWebsiteToPDF.java) was not updated with the Custo…
    CVE-2026-41580 (CVSS 6.1) — Stirling-PDF is a locally hosted web application that facilitates various operations on PDF files. Prior to 2.…
    CVE-2026-34071 (CVSS 5.4) — Stirling-PDF is a locally hosted web application that allows you to perform various operations on PDF files. I…
    CVE-2026-27625 (CVSS 8.1) — Stirling-PDF is a locally hosted web application that performs various operations on PDF files. In versions pr…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High