Highlights
Argument Injection: 1 prior fix. Scrutinize any change in this area.
src/svglib/fonts.py: most-fixed (1 issue). Treat as high-risk during review.
2 high-severity fixes in this history; regressions here are high-impact.
Recurring patterns
The bug types that recur here, drawn from past fixes, not open vulnerabilities.
XML External Entity (XXE): Insecure default configuration of the XML parser allowed external entity resolution during SVG parsing, potentially leading to local file disclosure or server-side request forgery (SSRF) when processing untrusted SVG documents. This risk is tracked under CVE-2020-10799.
Argument Injection: Untrusted font names passed to subprocess calls without proper argument boundaries allowed attackers to inject flags into the 'fc-match' command, potentially leading to arbitrary code or command execution.