@article{poisononceexploitforeverenvironmentinjec, title = {Poison Once, Exploit Forever: Environment-Injected Memory Poisoning Attacks on Web Agents}, author = {Wei Zou and Mingwen Dong and Miguel Romero Calvo and Shuaichen Chang and Jiang Guo and Dongkyu Lee and Xing Niu and Xiaofei Ma and Yanjun Qi and Jiarong Jiang}, year = {2026}, eprint = {2604.02623}, archivePrefix = {arXiv}, url = {https://arxiv.org/abs/2604.02623}, }