PYSEC-2026-2408 ciguard: discover_pipeline_files follows symlinks out of scan root

Summary The discoverpipelinefiles function in src/ciguard/discovery.py introduced in v0.8.0 and used by the MCP scanrepo tool shipped in v0.8.1 walks a directory tree following symlinks, with cycle protection via tracking visited resolved paths. An attacker who can plant a symlink in a directory...