147 lines
6.5 KiB
JSON
147 lines
6.5 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-55546",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-06-16T23:01:04.075Z",
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"datePublished": "2026-08-25T15:25:34.759Z",
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"dateUpdated": "2026-08-25T18:26:44.049Z"
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},
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"containers": {
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"cna": {
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"title": "QWED-MCP: Unsafe SymPy `parse_expr()` Remote Code Execution via Unsanitized Math Expression Input",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-94",
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"lang": "en",
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"description": "CWE-94: Improper Control of Generation of Code ('Code Injection')",
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"type": "CWE"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"attackComplexity": "LOW",
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"attackVector": "NETWORK",
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"availabilityImpact": "HIGH",
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"baseScore": 9.8,
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"baseSeverity": "CRITICAL",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"privilegesRequired": "NONE",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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"version": "3.1"
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}
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}
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],
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"references": [
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{
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"name": "https://github.com/QWED-AI/qwed-mcp/security/advisories/GHSA-mw6r-2hvm-4rp2",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/QWED-AI/qwed-mcp/security/advisories/GHSA-mw6r-2hvm-4rp2"
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},
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{
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"name": "https://github.com/QWED-AI/qwed-mcp/pull/22",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/QWED-AI/qwed-mcp/pull/22"
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},
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{
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"name": "https://github.com/QWED-AI/qwed-mcp/commit/362e61892052e250c56cb1ee852024d6f98c467b",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/QWED-AI/qwed-mcp/commit/362e61892052e250c56cb1ee852024d6f98c467b"
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},
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{
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"name": "https://github.com/QWED-AI/qwed-mcp/releases/tag/v0.2.1",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/QWED-AI/qwed-mcp/releases/tag/v0.2.1"
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}
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],
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"affected": [
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{
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"vendor": "QWED-AI",
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"product": "qwed-mcp",
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"versions": [
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{
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"version": "< 0.2.1",
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"status": "affected"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-08-25T15:25:34.759Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "QWED-MCP is a deterministic verification gateway for MCP. Prior to 0.2.1, verify_math_expression() in src/qwed_mcp/engines/math_engine.py passes attacker-controlled expression and claimed_result strings directly to SymPy's parse_expr() after only normalizing caret syntax to Python exponent syntax, without restricting global_dict, removing Python built-ins, or validating the expression AST. Because parse_expr() calls Python's eval() with built-ins available, an attacker who can cause a downstream caller to pass untrusted input to this public library function can use Python import functionality to execute arbitrary operating-system commands as the qwed-mcp process user, read or modify accessible data, exfiltrate process secrets, or reach internal services. The default MCP tool registry does not expose verify_math_expression(), so exploitation requires a downstream integration that invokes the library API with attacker-controlled input. This issue is fixed in version 0.2.1."
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}
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],
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"source": {
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"advisory": "GHSA-mw6r-2hvm-4rp2",
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"discovery": "UNKNOWN"
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}
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},
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"adp": [
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{
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"references": [
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{
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"url": "https://github.com/QWED-AI/qwed-mcp/security/advisories/GHSA-mw6r-2hvm-4rp2",
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"tags": [
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"exploit"
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]
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}
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],
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-08-25T18:26:37.346015Z",
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"id": "CVE-2026-55546",
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"options": [
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{
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"Exploitation": "poc"
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},
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{
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"Automatable": "yes"
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},
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{
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"Technical Impact": "total"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-08-25T18:26:44.049Z"
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}
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}
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]
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}
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} |