Zhu, Zhenhao, Yue Liu, Zhiwei Xu, Yingwei Ma, Hongcheng Gao, Nuo Chen, Yanpei Guo, et al. 2026. “ExtendAttack: Attacking Servers of LRMs via Extending Reasoning”. Proceedings of the AAAI Conference on Artificial Intelligence 40 (41):35257-65. https://doi.org/10.1609/aaai.v40i41.40833.