CVE-2026-114610 fpdf2: Exponential SVG '<use>' expansion causes CPU and memory exhaustion in 'FPDF.image()'
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-114610?
CVE-2026-114610 is a medium-severity vulnerability in py-pdf fpdf2, published on 22 Oct 2026.
Official 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.
Which versions are affected by CVE-2026-114610?
2 open source packages ship an affected version, including fpdf2.
| Package | Affected | Fixed in |
|---|---|---|
fpdf2 PyPI | From 2.5.0 | 2.8.8 |
fpdf2 PyPI | From 2.5.0 | 2.8.8 |
How do I fix CVE-2026-114610?
Upgrade fpdf2 to 2.8.8 or later.
Is CVE-2026-114610 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-114610 exists.
Sources
Also known as DEBIAN-CVE-2026-114610, GHSA-wqw6-wpr3-45rh.