Location / 位置: regex_search_tool.py:133, workspace.py:81
User-provided regex patterns are compiled directly with re.compile(pattern) without any ReDoS protection.
用户提供的正则表达式直接通过 re.compile(pattern) 编译，没有任何 ReDoS 防护。
The following safeguards are missing / 缺失以下防护措施:
re.TIMEOUT timeout limit / 超时限制- Complexity upper bound detection / 复杂度上限检测
- Per-match timeout monitoring / 单次匹配耗时监控
Malicious or accidental catastrophic patterns such as (a+)+b or (x+x+)+y can cause exponential backtracking on specific inputs.
恶意或意外的灾难性模式（如 (a+)+b、(x+x+)+y）在特定输入上会导致指数级回溯。
Since workspace.search_content uses ThreadPoolExecutor (workspace.py:106), a ReDoS attack does not just hang a single search — it exhausts the thread pool and blocks the entire tool system's concurrency.
由于 workspace.search_content 使用了 ThreadPoolExecutor（workspace.py:106），ReDoS 不仅会卡住单次搜索，还会耗尽线程池，阻塞整个工具系统的并发能力。
Location / 位置:
regex_search_tool.py:133,workspace.py:81User-provided regex patterns are compiled directly with
re.compile(pattern)without any ReDoS protection.用户提供的正则表达式直接通过
re.compile(pattern)编译，没有任何 ReDoS 防护。The following safeguards are missing / 缺失以下防护措施:
re.TIMEOUTtimeout limit / 超时限制Malicious or accidental catastrophic patterns such as
(a+)+bor(x+x+)+ycan cause exponential backtracking on specific inputs.恶意或意外的灾难性模式（如
(a+)+b、(x+x+)+y）在特定输入上会导致指数级回溯。Since
workspace.search_contentusesThreadPoolExecutor(workspace.py:106), a ReDoS attack does not just hang a single search — it exhausts the thread pool and blocks the entire tool system's concurrency.由于
workspace.search_content使用了ThreadPoolExecutor（workspace.py:106），ReDoS 不仅会卡住单次搜索，还会耗尽线程池，阻塞整个工具系统的并发能力。