CVE-2026-114610

MediumCVSS 6.5

Published: 22/10/2026(UTC)Updated: 29/10/2026(UTC)Translated: 22/10/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.46%

40th percentile - higher than 40% of all known CVEs

Summary

fpdf2 is a PDF creation library for Python. From 2.5.0 until 2.8.8, SVGObject.build_xref() passes nested SVG <use> references to GraphicsContext.add_item(), whose default clone=True deep-copy behavior copies the complete referenced graphics tree during FPDF.image() processing. Repeating references at each nesting level makes in-memory object count and processing work grow exponentially, allowing a small user-controlled SVG to consume excessive CPU and memory, raise MemoryError, fail PDF generation jobs, and exhaust worker capacity. ResourceAccessPolicy does not prevent the issue because the references are inline and require no external resource.

Risk Assessment

This can lead to denial of service through CPU and memory exhaustion and failure of PDF generation jobs.

Recommendation

Update fpdf2 to version 2.8.8 or later and avoid processing untrusted SVG files.

Other vulnerabilities in fpdf2

CVE-2026-114609Medium
fpdf2 prior to 2.8.8 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.

Original NVD description (English source)

fpdf2 is a PDF creation library for Python. From 2.5.0 until 2.8.8, fpdf2's SVGObject.build_xref() passes nested SVG <use> references to GraphicsContext.add_item(), whose default clone=True deep-copy behavior copies the complete referenced graphics tree during FPDF.image() processing. Repeating references at each nesting level makes the in-memory object count and processing work grow exponentially, allowing a small user-controlled SVG to consume excessive CPU and memory, raise MemoryError, fail PDF generation jobs, and reduce or exhaust worker capacity. ResourceAccessPolicy does not prevent the issue because the references are inline and require no external resource, XML entity, local file, or permissive network setting. This issue is fixed in version 2.8.8.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS