{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-108839", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-10-11T12:50:50.838Z", "datePublished": "2026-10-11T13:26:00.141Z", "dateUpdated": "2026-10-11T13:26:00.141Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-10-11T13:26:00.141Z"}, "datePublic": "2026-10-11T00:00:00.000Z", "title": "thClaws through 0.141.0 Symlink Following File Write via POST /v1/inputs", "descriptions": [{"lang": "en", "value": "thClaws through 0.141.0 contains a link-following vulnerability in the post_inputs handler of the v1 API POST /v1/inputs endpoint that allows writes outside the workspace by following symlinks. Attackers who plant a symlink under the allowed inputs/ prefix can cause later authenticated uploads to write or truncate files outside the workspace with daemon privileges."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Improper Link Resolution Before File Access ('Link Following')", "cweId": "CWE-59", "type": "CWE"}]}], "affected": [{"vendor": "thClaws", "product": "thClaws", "defaultStatus": "unaffected", "versions": [{"version": "0", "lessThanOrEqual": "0.141.0", "status": "affected", "versionType": "semver"}], "packageURL": "pkg:github/thClaws/thClaws", "repo": "https://github.com/thClaws/thClaws"}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "LOW", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 2.3, "baseSeverity": "LOW"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:L", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "LOW", "baseScore": 4.2, "baseSeverity": "MEDIUM"}}], "references": [{"url": "https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/thclaws-api-inputs-symlink-escape", "tags": ["third-party-advisory"]}, {"url": "https://github.com/thClaws/thClaws/blob/v0.141.0/crates/core/src/api_v1/artifacts.rs#L335-L420", "tags": ["technical-description"]}, {"url": "https://github.com/thClaws/thClaws", "tags": ["product"]}, {"name": "VulnCheck Advisory: thClaws through 0.141.0 Symlink Following File Write via POST /v1/inputs", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/thclaws-through-0.141.0-symlink-following-file-write-via-post-v1-inputs"}], "credits": [{"lang": "en", "value": "hieuPenguinnn", "type": "finder"}], "x_generator": {"engine": "vulncheck-endgame"}}}}

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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,0.141.0]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "thClaws", "source": "cna", "vendor": "thClaws"}, "product": "thclaws", "vendor": "thclaws"}], "created": "2026-10-11T15:45:16.877705+00:00", "updated": "2026-10-13T07:57:47.310098+00:00", "vendors": ["thclaws", "thclaws$PRODUCT$thclaws"]}