CVE-2026-117558 (GCVE-0-2026-117558)

Vulnerability from cvelistv5 – Published: 2026-10-27 13:07 – Updated: 2026-10-27 13:07
VLAI
Title
ai-sdlc MCP Server through 0.31.2 Command Injection via check_issue and check_pr_status
Summary
The ai-sdlc plugin MCP server through 0.31.2 contains an OS command injection vulnerability that allows attackers to execute commands by supplying shell metacharacters in the repo argument. The unvalidated repo value is interpolated into gh issue view or gh pr view commands run via execSync(), letting prompt-injected agents execute commands as the MCP server user.
Severity
8.5 (High)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 7112 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
ai-sdlc-framework ai-sdlc Affected: 0 , ≤ 0.31.2 (semver)
guessed Create a notification for this product.
Date Public
2026-10-23 00:00
Show details on NVD website
To clipboard 

{
  "containers": {
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          "packageURL": "pkg:npm/%40ai-sdlc/plugin-mcp-server",
          "product": "ai-sdlc",
          "vendor": "ai-sdlc-framework",
          "versions": [
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              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
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        }
      ],
      "metrics": [
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            "privilegesRequired": "LOW",
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            "subConfidentialityImpact": "NONE",
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            "confidentialityImpact": "HIGH",
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      ],
      "problemTypes": [
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              "description": "Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)",
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              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-27T13:07:53.099Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "GitHub Issue #1970",
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/ai-sdlc-framework/ai-sdlc/issues/1970"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/ai-sdlc-framework/ai-sdlc"
        },
        {
          "tags": [
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          "url": "https://github.com/ai-sdlc-framework/ai-sdlc/commit/717d7ecf068b714f65955e50fcf5cb4f9a0b5070"
        },
        {
          "tags": [
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          ],
          "url": "https://github.com/ai-sdlc-framework/ai-sdlc/blob/ai-sdlc-plugin-v0.31.2/ai-sdlc-plugin/mcp-server/src/tools/check-issue.ts#L15-L19"
        },
        {
          "name": "VulnCheck Advisory: ai-sdlc MCP Server through 0.31.2 Command Injection via check_issue and check_pr_status",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/ai-sdlc-mcp-server-through-0.31.2-command-injection-via-check-issue-and-check-pr-status"
        }
      ],
      "title": "ai-sdlc MCP Server through 0.31.2 Command Injection via check_issue and check_pr_status",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
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  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-117558",
    "datePublished": "2026-10-27T13:07:53.099Z",
    "dateReserved": "2026-10-27T11:25:21.756Z",
    "dateUpdated": "2026-10-27T13:07:53.099Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-117558",
      "date": "2026-10-30",
      "epss": "0.00687",
      "percentile": "0.52655"
    },
    "nvd": {
      "cve": {
        "affected": [
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            "affectedData": [
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                "defaultStatus": "unaffected",
                "packageURL": "pkg:npm/%40ai-sdlc/plugin-mcp-server",
                "product": "ai-sdlc",
                "vendor": "ai-sdlc-framework",
                "versions": [
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                    "versionType": "semver"
                  }
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        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "The ai-sdlc plugin MCP server through 0.31.2 contains an OS command injection vulnerability that allows attackers to execute commands by supplying shell metacharacters in the repo argument. The unvalidated repo value is interpolated into gh issue view or gh pr view commands run via execSync(), letting prompt-injected agents execute commands as the MCP server user."
          }
        ],
        "id": "CVE-2026-117558",
        "lastModified": "2026-10-27T16:04:22.707",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 7.8,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
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                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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              "impactScore": 5.9,
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              "type": "Primary"
            }
          ],
          "cvssMetricV40": [
            {
              "cvssData": {
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                "Recovery": "NOT_DEFINED",
                "Safety": "NOT_DEFINED",
                "attackComplexity": "LOW",
                "attackRequirements": "NONE",
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                "availabilityRequirement": "NOT_DEFINED",
                "baseScore": 8.5,
                "baseSeverity": "HIGH",
                "confidentialityRequirement": "NOT_DEFINED",
                "exploitMaturity": "NOT_DEFINED",
                "integrityRequirement": "NOT_DEFINED",
                "modifiedAttackComplexity": "NOT_DEFINED",
                "modifiedAttackRequirements": "NOT_DEFINED",
                "modifiedAttackVector": "NOT_DEFINED",
                "modifiedPrivilegesRequired": "NOT_DEFINED",
                "modifiedSubAvailabilityImpact": "NOT_DEFINED",
                "modifiedSubConfidentialityImpact": "NOT_DEFINED",
                "modifiedSubIntegrityImpact": "NOT_DEFINED",
                "modifiedUserInteraction": "NOT_DEFINED",
                "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
                "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
                "modifiedVulnIntegrityImpact": "NOT_DEFINED",
                "privilegesRequired": "LOW",
                "providerUrgency": "NOT_DEFINED",
                "subAvailabilityImpact": "NONE",
                "subConfidentialityImpact": "NONE",
                "subIntegrityImpact": "NONE",
                "userInteraction": "NONE",
                "valueDensity": "NOT_DEFINED",
                "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
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                "vulnConfidentialityImpact": "HIGH",
                "vulnIntegrityImpact": "HIGH",
                "vulnerabilityResponseEffort": "NOT_DEFINED"
              },
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              "type": "Secondary"
            }
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        "published": "2026-10-27T14:16:37.840",
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            "source": "disclosure@vulncheck.com",
            "url": "https://github.com/ai-sdlc-framework/ai-sdlc"
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            "source": "disclosure@vulncheck.com",
            "url": "https://github.com/ai-sdlc-framework/ai-sdlc/blob/ai-sdlc-plugin-v0.31.2/ai-sdlc-plugin/mcp-server/src/tools/check-issue.ts#L15-L19"
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  }
}



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