py-pdf fpdf2 up to 2.8.7 Shared Image Loader FPDF.image/FPDF.write_html server-side request forgery

Summaryinfo

A vulnerability categorized as problematic has been discovered in py-pdf fpdf2 up to 2.8.7. Impacted is the function FPDF.image/FPDF.write_html of the component Shared Image Loader. Such manipulation leads to server-side request forgery. This vulnerability is uniquely identified as CVE-2026-114609. The attack can be launched remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in py-pdf fpdf2 up to 2.8.7. Affected by this issue is the function FPDF.image/FPDF.write_html of the component Shared Image Loader. The manipulation with an unknown input leads to a server-side request forgery vulnerability. Using CWE to declare the problem leads to CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. Impacted is confidentiality. CVE summarizes:

fpdf2 is a PDF creation library for Python. Prior to 2.8.8, fpdf2's shared image loader automatically dereferences attacker-controlled HTTP(S) URLs and raw local paths supplied through FPDF.image(), FPDF.write_html() HTML <img src> values, SVG <image href> or xlink:href values, and template image fields. This can cause outbound requests to attacker-selected internal or external services and local file open attempts, although local content is exposed only when it is a valid supported image or SVG resource. file:// URLs are not specially handled, so the local-path case requires a raw filesystem path. This issue is fixed in version 2.8.8.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-114609 since 10/21/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit.

Upgrading to version 2.8.8 eliminates this vulnerability.

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Productinfo

Vendor

• py-pdf

Name

• fpdf2

Version

• 2.8.0
• 2.8.1
• 2.8.2
• 2.8.3
• 2.8.4
• 2.8.5
• 2.8.6
• 2.8.7

Website

• Product: https://github.com/py-pdf/fpdf2/

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CPE 2.2info

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