https://cve.radiocsirt.org Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Fri, 02 Oct 2026 17:49:21 +0000 https://cve.radiocsirt.org/vuln/euvd-2026-333693 EUVD-2026-333693 https://cve.radiocsirt.org/vuln/euvd-2026-333693 https://cve.radiocsirt.org/vuln/fkie_cve-2026-57571 <p>Crawl4AI is an open-source LLM-friendly web crawler and scraper. Prior to 0.9.0, when the crawler saves a downloaded file, the destination filename was taken from attacker-influenced input and joined to the downloads directory with no confinement. A filename containing an absolute path or traversal escaped the downloads directory, giving an arbitrary file write with attacker-controlled contents; the HTTP crawler path uses the response Content-Disposition filename and the browser crawler path uses the download&#39;s suggested filename. Because the written bytes are attacker-controlled, this can escalate to remote code execution. This issue is fixed in version 0.9.0.</p> <p>Crawl4AI is an open-source LLM-friendly web crawler and scraper. Prior to 0.9.0, when the crawler saves a downloaded file, the destination filename was taken from attacker-influenced input and joined to the downloads directory with no confinement. A filename containing an absolute path or traversal escaped the downloads directory, giving an arbitrary file write with attacker-controlled contents; the HTTP crawler path uses the response Content-Disposition filename and the browser crawler path uses the download&#39;s suggested filename. Because the written bytes are attacker-controlled, this can escalate to remote code execution. This issue is fixed in version 0.9.0.</p> https://cve.radiocsirt.org/vuln/fkie_cve-2026-57571 https://cve.radiocsirt.org/vuln/ghsa-2jq4-q6vv-4cp3 <p><strong>Affected:</strong> PyPI: crawl4ai</p> <p>### Summary</p> <p>When the crawler saves a downloaded file, the destination filename was taken from attacker-influenced input and joined to the downloads directory with no confinement. A filename containing an absolute path (e.g. `/etc/cron.d/evil`) or `../` traversal escaped the downloads directory, giving an arbitrary file write with attacker-controlled contents. Because the written bytes are attacker-controlled, this escalates to remote code execution (overwriting a shell rc-file, `~/.ssh/authorized_keys`, a cron entry, or a Python module on the import path).</p> <p>### Affected paths</p> <p>Two download sinks in `crawl4ai/async_crawler_strategy.py`: - HTTP crawler (`AsyncHTTPCrawlerStrategy`): the filename is parsed from the response `Content-Disposition` header by `_extract_filename()` and written via `aiofiles.open(filepath, &#39;wb&#39;)`. Reachable directly via the SDK, and via the unauthenticated Docker `/crawl` endpoint when an `HTTPCrawlerConfig` is supplied. - Browser crawler (`AsyncPlaywrightCrawlerStrategy`): the download&#39;s `suggested_filename` (controllable by the visited page) is joined to `downloads_path` and written via `download.save_as()`.</p> <p>The HTTP-strategy sink is reachable pre-auth on the default Docker deployment; both are reachable for SDK users simply by crawling an attacker-controlled URL. The default Playwright crawl path that does not trigger a download is unaffected.</p> <p>### Impact</p> <p>Arbitrary file write with attacker-controlled content as the user running the crawler, esca…</p> <p><strong>Affected:</strong> PyPI: crawl4ai</p> <p>### Summary</p> <p>When the crawler saves a downloaded file, the destination filename was taken from attacker-influenced input and joined to the downloads directory with no confinement. A filename containing an absolute path (e.g. `/etc/cron.d/evil`) or `../` traversal escaped the downloads directory, giving an arbitrary file write with attacker-controlled contents. Because the written bytes are attacker-controlled, this escalates to remote code execution (overwriting a shell rc-file, `~/.ssh/authorized_keys`, a cron entry, or a Python module on the import path).</p> <p>### Affected paths</p> <p>Two download sinks in `crawl4ai/async_crawler_strategy.py`: - HTTP crawler (`AsyncHTTPCrawlerStrategy`): the filename is parsed from the response `Content-Disposition` header by `_extract_filename()` and written via `aiofiles.open(filepath, &#39;wb&#39;)`. Reachable directly via the SDK, and via the unauthenticated Docker `/crawl` endpoint when an `HTTPCrawlerConfig` is supplied. - Browser crawler (`AsyncPlaywrightCrawlerStrategy`): the download&#39;s `suggested_filename` (controllable by the visited page) is joined to `downloads_path` and written via `download.save_as()`.</p> <p>The HTTP-strategy sink is reachable pre-auth on the default Docker deployment; both are reachable for SDK users simply by crawling an attacker-controlled URL. The default Playwright crawl path that does not trigger a download is unaffected.</p> <p>### Impact</p> <p>Arbitrary file write with attacker-controlled content as the user running the crawler, esca…</p> https://cve.radiocsirt.org/vuln/ghsa-2jq4-q6vv-4cp3 https://cve.radiocsirt.org/vuln/pysec-2026-2138 <p><strong>Affected:</strong> PyPI: crawl4ai</p> <p>Crawl4AI is an open-source LLM-friendly web crawler and scraper. Prior to 0.9.0, when the crawler saves a downloaded file, the destination filename was taken from attacker-influenced input and joined to the downloads directory with no confinement. A filename containing an absolute path or traversal escaped the downloads directory, giving an arbitrary file write with attacker-controlled contents; the HTTP crawler path uses the response Content-Disposition filename and the browser crawler path uses the download&#39;s suggested filename. Because the written bytes are attacker-controlled, this can escalate to remote code execution. This issue is fixed in version 0.9.0.</p> <p><strong>Affected:</strong> PyPI: crawl4ai</p> <p>Crawl4AI is an open-source LLM-friendly web crawler and scraper. Prior to 0.9.0, when the crawler saves a downloaded file, the destination filename was taken from attacker-influenced input and joined to the downloads directory with no confinement. A filename containing an absolute path or traversal escaped the downloads directory, giving an arbitrary file write with attacker-controlled contents; the HTTP crawler path uses the response Content-Disposition filename and the browser crawler path uses the download&#39;s suggested filename. Because the written bytes are attacker-controlled, this can escalate to remote code execution. This issue is fixed in version 0.9.0.</p> https://cve.radiocsirt.org/vuln/pysec-2026-2138