Export limit exceeded: 384953 CVEs match your query. Please refine your search to export 10,000 CVEs or fewer.

Export limit exceeded: 384953 CVEs match your query. Please refine your search to export 10,000 CVEs or fewer.

Export limit exceeded: 384953 CVEs match your query. Please refine your search to export 10,000 CVEs or fewer.

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CVE Vendors Products Updated CVSS v3.1
CVE-2026-55520 1 Scrapy 1 Protego 2026-08-31 N/A
Protego is a pure-Python robots.txt parser with support for modern conventions. Prior to 0.6.2, protego._urlpattern._URLPattern._prepare_pattern_for_regex translates every asterisk in an Allow or Disallow directive into a lazy regular-expression wildcard, so a directive containing many asterisks creates exponential backtracking. After protego.Protego.parse processes a crafted robots.txt file, protego.Protego.can_fetch can spend an attacker-controlled period matching a near-miss URL and deny service to the crawler. The vulnerable path is src/protego/_urlpattern.py in the _URLPattern match logic. This issue is fixed in version 0.6.2.