7.5

CVE-2026-49476

Exploit

Soup Sieve: Memory Exhaustion via Large Comma-Separated Selector Lists in soupsieve

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Facelessuser ≫ Soup Sieve SwPlatformbeautiful_soup Version < 2.8.4
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.52% 0.413
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-400 Uncontrolled Resource Consumption

The product does not properly control the allocation and maintenance of a limited resource.

CWE-770 Allocation of Resources Without Limits or Throttling

The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

https://github.com/facelessuser/soupsieve/commit/28108ab805818c832d9568142a99844fd95a0d39
Patch
https://github.com/facelessuser/soupsieve/releases/tag/2.8.4
Release Notes
https://github.com/facelessuser/soupsieve/security/advisories/GHSA-2wc2-fm75-p42x
Vendor Advisory
Exploit