Threats Tagged 'cve-2026-53753'
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Threats Tagged 'cve-2026-53753'
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CVE-2026-53753: CWE-94: Improper Control of Generation of Code ('Code Injection') in unclecode crawl4aiCVE-2026-53753 0 CVE-2026-53753 is a critical code injection vulnerability in the open-source web crawler crawl4ai prior to version 0.8.7. The vulnerability arises from improper control in the _safe_eval_expression() function, which uses an AST validator that only blocks attributes starting with an underscore. This allows attackers to exploit Python generator and frame object attributes that do not start with an underscore to escape the sandbox and execute arbitrary code. The attack requires no authentication and is triggered via a crafted POST request to the /crawl endpoint. The vulnerability is fixed in version 0.8.7. Join the discussion | CVE Database V5 | 06/23/2026, 18:17:18 UTC Added: 06/23/2026, 18:54:13 UTC |
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