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2 vulnerabilities found for soupsieve by facelessuser

CVE-2026-49476 (GCVE-0-2026-49476)
Vulnerability from cvelistv5
Published
2026-07-14 20:53
Modified
2026-07-15 14:27
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-400 - Uncontrolled Resource Consumption
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Summary
Soup Sieve is a CSS selector library designed to be used with Beautiful Soup 4. Prior to 2.8.4, the CSS selector parser in soupsieve allocates unbounded memory when compiling large comma-separated selector lists, allowing an attacker who can supply a crafted selector string to soupsieve.compile() or Beautiful Soup .select() / .select_one() to allocate hundreds of megabytes of heap memory from a relatively small input and cause denial of service. This issue is fixed in version 2.8.4.
References
Impacted products
Vendor Product Version
facelessuser soupsieve Version: < 2.8.4
 Create a notification for this product.
Show details on NVD website

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CVE-2026-49477 (GCVE-0-2026-49477)
Vulnerability from cvelistv5
Published
2026-07-14 20:51
Modified
2026-07-21 14:49
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-400 - Uncontrolled Resource Consumption
  • CWE-1333 - Inefficient Regular Expression Complexity
Summary
Soup Sieve is a CSS selector library designed to be used with Beautiful Soup 4. Prior to 2.8.4, the CSS selector parser in soupsieve contains a regular expression vulnerable to catastrophic backtracking when processing an attribute selector with an unterminated quoted value in soupsieve/css_parser.py, allowing an attacker who can supply untrusted CSS selector strings to soupsieve.compile() or Beautiful Soup .select() / .select_one() to cause CPU exhaustion and denial of service. This issue is fixed in version 2.8.4.
References
Impacted products
Vendor Product Version
facelessuser soupsieve Version: < 2.8.4
 Create a notification for this product.
Show details on NVD website

To clipboard 

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