1. CVE-2026-4539: Local ReDoS in Pygments' AdlLexer Poses Transitive Dependency Risk
A newly disclosed vulnerability, CVE-2026-4539, exposes a local attack vector within the widely used Python syntax highlighter, Pygments. The flaw is a ReDoS (Regular Expression Denial-of-Service) vulnerability located specifically in the `AdlLexer` component within `pygments/lexers/archetype.py`. Critically, exploitat...