CVE-2026-123370

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-123370", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-11-05T20:43:10.420Z", "datePublished": "2026-11-09T17:34:24.026Z", "dateUpdated": "2026-11-09T17:34:24.026Z"}, "containers": {"cna": {"title": "compose-lint: `fix --apply` can delete a line the user did not select, including a security setting", "problemTypes": [{"descriptions": [{"cweId": "CWE-193", "lang": "en", "description": "CWE-193: Off-by-one Error", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "ACTIVE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "LOW", "subAvailabilityImpact": "NONE", "baseScore": 5.1, "baseSeverity": "MEDIUM", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N", "version": "4.0"}}], "references": [{"name": "https://github.com/tmatens/compose-lint/security/advisories/GHSA-65v8-q222-64xx", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/tmatens/compose-lint/security/advisories/GHSA-65v8-q222-64xx"}, {"name": "https://github.com/tmatens/compose-lint/pull/547", "tags": ["x_refsource_MISC"], "url": "https://github.com/tmatens/compose-lint/pull/547"}, {"name": "https://github.com/tmatens/compose-lint/pull/549", "tags": ["x_refsource_MISC"], "url": "https://github.com/tmatens/compose-lint/pull/549"}, {"name": "https://github.com/tmatens/compose-lint/commit/c9d453a6a69c076788fe1db05cb54684a616d1de", "tags": ["x_refsource_MISC"], "url": "https://github.com/tmatens/compose-lint/commit/c9d453a6a69c076788fe1db05cb54684a616d1de"}, {"name": "https://github.com/tmatens/compose-lint/commit/cbbf886d91347dea9c51b584eb50088e70007d0d", "tags": ["x_refsource_MISC"], "url": "https://github.com/tmatens/compose-lint/commit/cbbf886d91347dea9c51b584eb50088e70007d0d"}, {"name": "https://github.com/tmatens/compose-lint/releases/tag/v0.18.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/tmatens/compose-lint/releases/tag/v0.18.0"}], "affected": [{"vendor": "tmatens", "product": "compose-lint", "versions": [{"version": ">= 0.9.0, < 0.18.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-11-09T17:34:24.026Z"}, "descriptions": [{"lang": "en", "value": "compose-lint is a Docker Compose security linter that identifies dangerous misconfigurations before deployment. From 0.9.0 until 0.18.0, compose-lint's YAML parser recognizes lone carriage returns and Unicode line separators U+0085, U+2028, and U+2029 as line breaks while fix position conversion counts only newline characters. A pull request can place one of these separators in a quoted value so fix --apply shifts each later edit and deletes the line after the selected target, including an unselected network or other security setting. The resulting Compose file can remain valid, post-edit checks can pass, and the command can report a successful fix even though the dry-run diff was the only place showing the extra deletion. This issue is fixed in version 0.18.0."}], "source": {"advisory": "GHSA-65v8-q222-64xx", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "compose-lint", "vendor": "tmatens", "versions": [{"status": "affected", "version": ">= 0.9.0, < 0.18.0"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "compose-lint is a Docker Compose security linter that identifies dangerous misconfigurations before deployment. From 0.9.0 until 0.18.0, compose-lint's YAML parser recognizes lone carriage returns and Unicode line separators U+0085, U+2028, and U+2029 as line breaks while fix position conversion counts only newline characters. A pull request can place one of these separators in a quoted value so fix --apply shifts each later edit and deletes the line after the selected target, including an unselected network or other security setting. The resulting Compose file can remain valid, post-edit checks can pass, and the command can report a successful fix even though the dry-run diff was the only place showing the extra deletion. This issue is fixed in version 0.18.0."}], "id": "CVE-2026-123370", "lastModified": "2026-11-12T22:18:51.470", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 5.1, "baseSeverity": "MEDIUM", "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": "LOW", "userInteraction": "ACTIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:L/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": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-11-09T18:17:25.997", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/tmatens/compose-lint/commit/c9d453a6a69c076788fe1db05cb54684a616d1de"}, {"source": "security-advisories@github.com", "url": "https://github.com/tmatens/compose-lint/commit/cbbf886d91347dea9c51b584eb50088e70007d0d"}, {"source": "security-advisories@github.com", "url": "https://github.com/tmatens/compose-lint/pull/547"}, {"source": "security-advisories@github.com", "url": "https://github.com/tmatens/compose-lint/pull/549"}, {"source": "security-advisories@github.com", "url": "https://github.com/tmatens/compose-lint/releases/tag/v0.18.0"}, {"source": "security-advisories@github.com", "url": "https://github.com/tmatens/compose-lint/security/advisories/GHSA-65v8-q222-64xx"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-193"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0.9.0,0.18.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "compose-lint", "source": "cna", "vendor": "tmatens"}, "product": "compose-lint", "vendor": "tmatens"}], "created": "2026-11-09T18:30:13.370852+00:00", "updated": "2026-11-10T09:30:25.928244+00:00", "vendors": ["tmatens", "tmatens$PRODUCT$compose-lint"]}