Vulnerability Description
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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/py-pdf/fpdf2/commit/d7bd1061205d50da6a541dadfdb9d66beb763f2f
- https://github.com/py-pdf/fpdf2/pull/1889
- https://github.com/py-pdf/fpdf2/releases/tag/2.8.8
- https://github.com/py-pdf/fpdf2/security/advisories/GHSA-wqw6-wpr3-45rh
- https://github.com/py-pdf/fpdf2/security/advisories/GHSA-wqw6-wpr3-45rh
FAQ
What is CVE-2026-114610?
CVE-2026-114610 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 ...
How severe is CVE-2026-114610?
CVE-2026-114610 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-114610?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.