CVPR - How to identify if an accepted paper has ethical issues (plagiarism)? [D]

I recently found a paper accepted to CVPR 2026 reproduced many technical details from my paper submitted to arXiV on June 2025 (5 months before the CVPR 2026 submission deadline). Apart from technical similarities (they rephrased / reframed the term / key ideas), the CVPR paper uses exactly same equation without changes to any notations from our paper without proper citation. Several figures show high similarities in style and pipeline. We tried to contact authors from the CVPR paper, but they framed the technical similarity as "general method" so no need to cite.