EUVD-2026-40453

n8n before 2.25.7 and 2.26.x before 2.26.2 contains an abstract syntax tree AST security validator bypass in the Python Code node. An authenticated user with permission to create or modify workflows containing a Python Code node can bypass the validator and access the task executor module...

CVE-2026-56777 n8n - AST Validator Bypass in Python Code Node

n8n before 2.25.7 and 2.26.x before 2.26.2 contains an abstract syntax tree AST security validator bypass in the Python Code node. An authenticated user with permission to create or modify workflows containing a Python Code node can bypass the validator and access the task executor module...

PYSEC-2026-319 Crawl4AI: AST Sandbox Escape via gi_frame.f_back Chain - Pre-Auth RCE in Docker API

Summary The safeevalexpression function in the computed fields feature uses an AST validator that only blocks attributes starting with underscore. Python generator and frame object attributes giframe, fback, fbuiltins do NOT start with underscore, enabling a complete sandbox escape to achieve...

CVE-2026-57281

A flaw was found in the Jenkins Script Security Plugin. Attackers with the ability to run sandboxed Groovy scripts can exploit this vulnerability to execute arbitrary code outside the sandbox environment. This is due to the plugin's failure to reject Groovy Abstract Syntax Tree AST transformation...

CVE-2026-57281

Jenkins Script Security Plugin 1402.v94c9ce464861 and earlier does not reject Groovy AST transformation annotations carrying an extensions member, allowing attackers able to run sandboxed Groovy scripts to execute code outside the sandbox if a suitable script is present on the classpath of the...

CVE-2026-57281

Jenkins Script Security Plugin 1402.v94c9ce464861 and earlier does not reject Groovy AST transformation annotations carrying an extensions member, allowing attackers able to run sandboxed Groovy scripts to execute code outside the sandbox if a suitable script is present on the classpath of the...

CVE-2026-57281

Jenkins Script Security Plugin 1402.v94c9ce464861 and earlier does not reject Groovy AST transformation annotations carrying an extensions member, allowing attackers able to run sandboxed Groovy scripts to execute code outside the sandbox if a suitable script is present on the classpath of the...

CVE-2026-57281

CVE-2026-57281 affects Jenkins Script Security Plugin 1402.v94c9ce464861 and earlier. The root cause is that the plugin does not reject Groovy AST transformation annotations carrying an extensions member, which can allow attackers to run sandboxed Groovy scripts to execute code outside the sandbo...

CVE-2026-57281

Jenkins Script Security Plugin 1402.v94c9ce464861 and earlier does not reject Groovy AST transformation annotations carrying an extensions member, allowing attackers able to run sandboxed Groovy scripts to execute code outside the sandbox if a suitable script is present on the classpath of the...

EUVD-2026-38761

Jenkins Script Security Plugin 1402.v94c9ce464861 and earlier does not reject Groovy AST transformation annotations carrying an extensions member, allowing attackers able to run sandboxed Groovy scripts to execute code outside the sandbox if a suitable script is present on the classpath of the...

PT-2026-51791

Name of the Vulnerable Software and Affected Versions Jenkins Script Security Plugin versions prior to 1402.v94c9ce464861 Description The plugin fails to reject Groovy AST Abstract Syntax Tree transformation annotations that contain an extensions member. This allows attackers with the ability to...

CVE-2026-53753 Crawl4AI: AST Sandbox Escape via gi_frame.f_back Chain - Pre-Auth RCE in Docker API

Crawl4AI is an open-source LLM friendly web crawler & scraper. Prior to 0.8.7, the safeevalexpression function in the computed fields feature uses an AST validator that only blocks attributes starting with underscore. Python generator and frame object attributes giframe, fback, fbuiltins do NOT...

GHSA-JWM3-QCFW-C5PP n8n: Python Code Node AST Validator Bypass

Impact An authenticated user with permission to create or modify workflows containing a Python Code node could bypass the AST security validator and access the task executor module namespace. On self-hosted instances where N8NBLOCKRUNNERENVACCESS=false is set, this extended to disclosure of...

GHSA-QXJP-W3PJ-48M7 Crawl4AI: AST Sandbox Escape via gi_frame.f_back Chain - Pre-Auth RCE in Docker API

Summary The safeevalexpression function in the computed fields feature uses an AST validator that only blocks attributes starting with underscore. Python generator and frame object attributes giframe, fback, fbuiltins do NOT start with underscore, enabling a complete sandbox escape to achieve...

Crawl4AI: AST Sandbox Escape via gi_frame.f_back Chain - Pre-Auth RCE in Docker API

The safeevalexpression function in the computed fields feature uses an AST validator that only blocks attributes starting with underscore. Python generator and frame object attributes giframe, fback, fbuiltins do NOT start with underscore, enabling a complete sandbox escape to achieve arbitrary...

CVE-2026-54133

Technical details (affected versions, impact specifics, and remediation) are not publicly available in the provided documents. Monitor for updates.

CVE-2026-5559

A vulnerability has been found in AntaresMugisho PyBlade 0.1.8-alpha/0.1.9-alpha. The affected element is the function issafeast of the file sandbox.py of the component AST Validation. Such manipulation leads to improper neutralization of special elements used in a template engine. The attack may...

CVE-2026-9358

A flaw was found in postcss. A remote attacker could exploit a vulnerability in the toString function of the AST Serialization component by executing a manipulation, leading to uncontrolled recursion. This uncontrolled recursion can result in a Denial of Service DoS condition, making the affected...

CVE-2026-44003

A flaw was found in vm2 before 3.11.0. A code transformer fast-path skips AST analysis when catch, import, and async are absent, allowing direct access to VM2INTERNALSTATEDONOTUSEORPROGRAMWILLFAIL and internal security functions handleException, wrapWith, import. Fixed in 3.11.0...

GHSA-4MR5-G6F9-CFRH PraisonAI vulnerable to sandbox escape via `print.__self__` builtins module leak in `execute_code` (subprocess mode)

Summary executecode in praisonaiagents/tools/pythontools.py v1.6.37, subprocess sandbox mode can be fully bypassed using print.self to retrieve the real Python builtins module, from which import can be extracted via vars and runtime string construction. This achieves arbitrary OS command executio...