CVE-2026-5058 (GCVE-0-2026-5058)
Vulnerability from cvelistv5 – Published: 2026-04-11 00:14 – Updated: 2026-04-11 00:14
VLAI?
Title
aws-mcp-server Command Injection Remote Code Execution Vulnerability
Summary
aws-mcp-server Command Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of aws-mcp-server. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the handling of the allowed commands list. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of the MCP server. Was ZDI-CAN-27968.
Severity ?
9.8 (Critical)
CWE
- CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| aws-mcp-server | aws-mcp-server |
Affected:
1.3.0
|
Date Public ?
2026-03-30 18:02
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"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unknown",
"product": "aws-mcp-server",
"vendor": "aws-mcp-server",
"versions": [
{
"status": "affected",
"version": "1.3.0"
}
]
}
],
"dateAssigned": "2026-03-27T18:09:58.221Z",
"datePublic": "2026-03-30T18:02:15.538Z",
"descriptions": [
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}
],
"metrics": [
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"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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},
"format": "CVSS"
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],
"problemTypes": [
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"descriptions": [
{
"cweId": "CWE-78",
"description": "CWE-78: Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)",
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"type": "CWE"
}
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}
],
"providerMetadata": {
"dateUpdated": "2026-04-11T00:14:52.192Z",
"orgId": "99f1926a-a320-47d8-bbb5-42feb611262e",
"shortName": "zdi"
},
"references": [
{
"name": "ZDI-26-246",
"tags": [
"x_research-advisory"
],
"url": "https://www.zerodayinitiative.com/advisories/ZDI-26-246/"
}
],
"source": {
"lang": "en",
"value": "Alfredo Oliveira and David Fiser of Trend Research"
},
"title": "aws-mcp-server Command Injection Remote Code Execution Vulnerability"
}
},
"cveMetadata": {
"assignerOrgId": "99f1926a-a320-47d8-bbb5-42feb611262e",
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"cveId": "CVE-2026-5058",
"datePublished": "2026-04-11T00:14:52.192Z",
"dateReserved": "2026-03-27T18:09:58.198Z",
"dateUpdated": "2026-04-11T00:14:52.192Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
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}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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