{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-126193 in the wild and no public exploit code.","exposure":"An affected version is only exploitable if your software uses the vulnerable function or option. Many projects that include it are not exposed.","fix":"No fix has been published for CVE-2026-126193 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-126193 is a medium-severity denial of service vulnerability in facelessuser soupsieve, published on 12 Nov 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-126193 and fix it if it is affected.\n\nWhat it is: CVE-2026-126193 is a medium-severity denial of service vulnerability in facelessuser soupsieve, published on 12 Nov 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-126193 in the wild and no public exploit code.\nExposure: An affected version is only exploitable if your software uses the vulnerable function or option. Many projects that include it are not exposed.\n\nAffected product: facelessuser soupsieve. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-126193/ (Markdown: https://insights.sbomify.com/CVE-2026-126193/index.md)","id":"CVE-2026-126193","markdown":"https://insights.sbomify.com/CVE-2026-126193/index.md","name":"CVE-2026-126193","record":{"aliases":["GHSA-7g44-g9rc-x53w"],"analysis":{"component_type":"library","exploitable_when_present":false,"fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Python CSS selector library","requires_auth":"none","requires_specific_call":true,"summary":"Deeply nested CSS selectors can exhaust the Python stack in apps using Soup Sieve, crashing the request.","user_interaction":"not_required","vuln_class":"denial_of_service","vulnerable_functions":[]},"analysis_generated_by":"sbomify/insights-2b-fp8","assigner":"GitHub_M","cpe":[],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"cwes":[{"id":"CWE-674","name":"Uncontrolled Recursion"}],"description":"Soup Sieve is a CSS selector library for Beautiful Soup. From 0.4 until 3.0, deeply nested CSS pseudo-class selectors can cause recursive parsing to exceed Python’s recursion limit and raise  RecursionError . Applications accepting untrusted selectors may experience failure of the affected request or task if the exception is not handled. The demonstrated behavior is recoverable and does not establish an interpreter crash or persistent service-wide denial of service. This vulnerability is fixed in version 3.0.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Denial of service in soupsieve","id":"CVE-2026-126193","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":4,"next":{"headline":"pgEdge Postgres MCP Server read-only mode can be bypassed by SQL statement smuggling through query_database","id":"CVE-2026-126196"},"nickname":null,"packages":[],"prev":{"headline":"Soup Sieve: General sibling combinator inside :has() matches untrusted HTML in quadratic time","id":"CVE-2026-126192"},"products":["soupsieve"],"published":"2026-11-12","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-11-12","vendors":["facelessuser"]},"summary":"Deeply nested CSS selectors can exhaust the Python stack in apps using Soup Sieve, crashing the request.","url":"https://insights.sbomify.com/CVE-2026-126193/"}