{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-102422", "assignerOrgId": "7ffcee3d-2c14-4c3e-b844-86c6a321a158", "state": "PUBLISHED", "assignerShortName": "harborist", "dateReserved": "2026-09-29T03:43:27.967Z", "datePublished": "2026-09-29T03:47:36.376Z", "dateUpdated": "2026-09-29T03:47:36.376Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "7ffcee3d-2c14-4c3e-b844-86c6a321a158", "shortName": "harborist", "dateUpdated": "2026-09-29T03:47:36.376Z"}, "title": "shell-quote `quote()` command injection via a line terminator in a token after a `{ comment }` token", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-78", "description": "CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')", "type": "CWE"}]}], "affected": [{"product": "shell-quote", "collectionURL": "https://www.npmjs.com/package/shell-quote", "packageName": "shell-quote", "repo": "https://github.com/ljharb/shell-quote", "programFiles": ["quote.js"], "programRoutines": [{"name": "quote"}], "versions": [{"status": "affected", "version": "1.8.4", "lessThan": "1.11.0", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "shell-quote's `quote()` function emits a `{ comment }` token as `#` followed by its text, which comments out the rest of the shell line, including the opening quote of any later string token. A line terminator (\\n, \\r, U+2028, U+2029) in that later string therefore ends the comment, and the rest of the string is parsed as shell input: `quote(['echo', 'ok', { comment: 'x' }, 'a\\nid;#'])` runs `id` in sh, bash, dash, ksh and zsh. `parse()` emits a comment token for a `#` in the middle of a word (for example `http://example.com/#frag`), so callers that combine `parse()` output with another untrusted string, such as `quote(parse(untrustedCommand).concat(untrustedArg))`, are affected. The fix for CVE-2026-9277 rejected line terminators in the comment's own text, but not in the tokens after it. Fixed in 1.11.0: `quote()` throws a `TypeError` when a string after a `{ comment }` token contains a line terminator.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>shell-quote's `quote()` function emits a `{ comment }` token as `#` followed by its text, which comments out the rest of the shell line, including the opening quote of any later string token. A line terminator (\\n, \\r, U+2028, U+2029) in that later string therefore ends the comment, and the rest of the string is parsed as shell input: `quote(['echo', 'ok', { comment: 'x' }, 'a\\nid;#'])` runs `id` in sh, bash, dash, ksh and zsh. `parse()` emits a comment token for a `#` in the middle of a word (for example `http://example.com/#frag`), so callers that combine `parse()` output with another untrusted string, such as `quote(parse(untrustedCommand).concat(untrustedArg))`, are affected. The fix for CVE-2026-9277 rejected line terminators in the comment's own text, but not in the tokens after it. Fixed in 1.11.0: `quote()` throws a `TypeError` when a string after a `{ comment }` token contains a line terminator.</p>"}]}], "references": [{"url": "https://github.com/ljharb/shell-quote/security/advisories/GHSA-pqg4-j6r4-53mv", "name": "GHSA-pqg4-j6r4-53mv", "tags": ["vendor-advisory"]}, {"url": "https://github.com/ljharb/shell-quote/commit/6002b2ed90c6b83095eb272b6b0adaf3a172b0bc", "name": "Fix commit", "tags": ["patch"]}, {"url": "https://github.com/ljharb/shell-quote", "tags": ["product"]}, {"url": "https://www.npmjs.com/package/shell-quote", "tags": ["product"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseSeverity": "HIGH", "baseScore": 8.1, "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"}}, {"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "CRITICAL", "baseScore": 9.2, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}}], "credits": [{"lang": "en", "value": "Eurico Nicacio (@euriconicacio)", "type": "finder"}, {"lang": "en", "value": "Jordan Harband (@ljharb)", "type": "remediation developer"}], "source": {"advisory": "GHSA-pqg4-j6r4-53mv", "discovery": "EXTERNAL"}}}}

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{"affected": [{"affectedData": [{"collectionURL": "https://www.npmjs.com/package/shell-quote", "defaultStatus": "unaffected", "packageName": "shell-quote", "product": "shell-quote", "programFiles": ["quote.js"], "programRoutines": [{"name": "quote"}], "repo": "https://github.com/ljharb/shell-quote", "versions": [{"lessThan": "1.11.0", "status": "affected", "version": "1.8.4", "versionType": "semver"}]}], "source": "7ffcee3d-2c14-4c3e-b844-86c6a321a158"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "shell-quote's `quote()` function emits a `{ comment }` token as `#` followed by its text, which comments out the rest of the shell line, including the opening quote of any later string token. A line terminator (\\n, \\r, U+2028, U+2029) in that later string therefore ends the comment, and the rest of the string is parsed as shell input: `quote(['echo', 'ok', { comment: 'x' }, 'a\\nid;#'])` runs `id` in sh, bash, dash, ksh and zsh. `parse()` emits a comment token for a `#` in the middle of a word (for example `http://example.com/#frag`), so callers that combine `parse()` output with another untrusted string, such as `quote(parse(untrustedCommand).concat(untrustedArg))`, are affected. The fix for CVE-2026-9277 rejected line terminators in the comment's own text, but not in the tokens after it. Fixed in 1.11.0: `quote()` throws a `TypeError` when a string after a `{ comment }` token contains a line terminator."}], "id": "CVE-2026-102422", "lastModified": "2026-09-29T04:17:55.707", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 5.9, "source": "7ffcee3d-2c14-4c3e-b844-86c6a321a158", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 9.2, "baseSeverity": "CRITICAL", "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": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/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", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "7ffcee3d-2c14-4c3e-b844-86c6a321a158", "type": "Secondary"}]}, "published": "2026-09-29T04:17:55.707", "references": [{"source": "7ffcee3d-2c14-4c3e-b844-86c6a321a158", "url": "https://github.com/ljharb/shell-quote"}, {"source": "7ffcee3d-2c14-4c3e-b844-86c6a321a158", "url": "https://github.com/ljharb/shell-quote/commit/6002b2ed90c6b83095eb272b6b0adaf3a172b0bc"}, {"source": "7ffcee3d-2c14-4c3e-b844-86c6a321a158", "url": "https://github.com/ljharb/shell-quote/security/advisories/GHSA-pqg4-j6r4-53mv"}, {"source": "7ffcee3d-2c14-4c3e-b844-86c6a321a158", "url": "https://www.npmjs.com/package/shell-quote"}], "sourceIdentifier": "7ffcee3d-2c14-4c3e-b844-86c6a321a158", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-78"}], "source": "7ffcee3d-2c14-4c3e-b844-86c6a321a158", "type": "Secondary"}]}

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