CVE-2026-117558 (GCVE-0-2026-117558)
Vulnerability from cvelistv5
Published
2026-10-27 13:07
Modified
2026-10-27 13:07
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
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
VLAI Severity ?
EPSS score ?
CWE
- CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
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.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| ai-sdlc-framework | ai-sdlc |
Version: 0 ≤ 0.31.2 |
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"packageURL": "pkg:npm/%40ai-sdlc/plugin-mcp-server",
"product": "ai-sdlc",
"vendor": "ai-sdlc-framework",
"versions": [
{
"lessThanOrEqual": "0.31.2",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"datePublic": "2026-10-23T00:00:00.000Z",
"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."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "LOCAL",
"baseScore": 8.5,
"baseSeverity": "HIGH",
"privilegesRequired": "LOW",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"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",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH"
},
"format": "CVSS"
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-78",
"description": "Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)",
"lang": "en",
"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": [
"patch"
],
"url": "https://github.com/ai-sdlc-framework/ai-sdlc/commit/717d7ecf068b714f65955e50fcf5cb4f9a0b5070"
},
{
"tags": [
"technical-description"
],
"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"
}
}
},
"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"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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