qwed-mcp has Unsafe SymPy `parse_expr()` Remote Code Execution via Unsanitized Math Expression Input

Summaryverifymathexpression in qwed-mcp v0.2.0 passes attacker-controlled strings directly to SymPy's parseexpr without restricting globaldict or validating the expression's AST. Because parseexpr internally calls eval and Python automatically injects the current module's builtins when no explici...

PYSEC-2026-3915 qwed-mcp has Unsafe SymPy `parse_expr()` Remote Code Execution via Unsanitized Math Expression Input

Summary verifymathexpression in qwed-mcp v0.2.0 passes attacker-controlled strings directly to SymPy's parseexpr without restricting globaldict or validating the expression's AST. Because parseexpr internally calls eval and Python automatically injects the current module's builtins when no explic...

CVE-2026-55546

creationtimestamp| type| source ---|---|--- 2026-08-25 16:20:45+00:00| seen| https://bsky.app/profile/cve.skyfleet.blue/post/2kkjtwu7rva4w 2026-08-25 16:35:12+00:00| published-proof-of-concept| https://github.com/QWED-AI/qwed-mcp/security/advisories/GHSA-mw6r-2hvm-4rp2 2026-08-25 18:08:22+00:00|...

CVE-2026-55546

QWED-MCP is a deterministic verification gateway for MCP. Prior to 0.2.1, verifymathexpression in src/qwedmcp/engines/mathengine.py passes attacker-controlled expression and claimedresult strings directly to SymPy's parseexpr after only normalizing caret syntax to Python exponent syntax, without...

GHSA-MW6R-2HVM-4RP2 qwed-mcp has Unsafe SymPy `parse_expr()` Remote Code Execution via Unsanitized Math Expression Input

Summary verifymathexpression in qwed-mcp v0.2.0 passes attacker-controlled strings directly to SymPy's parseexpr without restricting globaldict or validating the expression's AST. Because parseexpr internally calls eval and Python automatically injects the current module's builtins when no explic...

qwed-mcp has Unsafe SymPy `parse_expr()` Remote Code Execution via Unsanitized Math Expression Input

Summary verifymathexpression in qwed-mcp v0.2.0 passes attacker-controlled strings directly to SymPy's parseexpr without restricting globaldict or validating the expression's AST. Because parseexpr internally calls eval and Python automatically injects the current module's builtins when no explic...

CVE-2026-55546 QWED-MCP: Unsafe SymPy `parse_expr()` Remote Code Execution via Unsanitized Math Expression Input

QWED-MCP is a deterministic verification gateway for MCP. Prior to 0.2.1, verifymathexpression in src/qwedmcp/engines/mathengine.py passes attacker-controlled expression and claimedresult strings directly to SymPy's parseexpr after only normalizing caret syntax to Python exponent syntax, without...

EUVD-2026-65547

QWED-MCP is a deterministic verification gateway for MCP. Prior to 0.2.1, verifymathexpression in src/qwedmcp/engines/mathengine.py passes attacker-controlled expression and claimedresult strings directly to SymPy's parseexpr after only normalizing caret syntax to Python exponent syntax, without...

CVE-2026-55546 QWED-MCP: Unsafe SymPy `parse_expr()` Remote Code Execution via Unsanitized Math Expression Input

QWED-MCP is a deterministic verification gateway for MCP. Prior to 0.2.1, verifymathexpression in src/qwedmcp/engines/mathengine.py passes attacker-controlled expression and claimedresult strings directly to SymPy's parseexpr after only normalizing caret syntax to Python exponent syntax, without...

CVE-2026-55546 QWED-MCP: Unsafe SymPy `parse_expr()` Remote Code Execution via Unsanitized Math Expression Input

QWED-MCP is a deterministic verification gateway for MCP. Prior to 0.2.1, verifymathexpression in src/qwedmcp/engines/mathengine.py passes attacker-controlled expression and claimedresult strings directly to SymPy's parseexpr after only normalizing caret syntax to Python exponent syntax, without...

CVE-2026-55546

QWED-MCP (a deterministic verification gateway for MCP) is affected by a Critical (CVSS 9.8) remote code execution vulnerability in verify_math_expression() within src/qwed_mcp/engines/math_engine.py. Attacker-controlled expression strings are passed directly to SymPy's parse_expr() without restr...

CVE-2026-55546: Improper Control of Generation of Code

QWED-MCP is a deterministic verification gateway for MCP. Prior to 0.2.1, verifymathexpression in src/qwedmcp/engines/mathengine.py passes attacker-controlled expression and claimedresult strings directly to SymPy's parseexpr after only normalizing caret syntax to Python exponent syntax, without...

PT-2026-81349

Name of the Vulnerable Software and Affected Versions QWED-MCP versions prior to 0.2.1 Description The verify math expression function in src/qwed mcp/engines/math engine.py passes the expression and claimed result strings directly to SymPy's parse expr function. The implementation only normalize...