{"id":"GHSA-r6h2-5gqq-v5v6","summary":"OpenClaw: Reject symlinks in local skill packaging script","details":"## Vulnerability\n\n`skills/skill-creator/scripts/package_skill.py` (a local helper script used when authors package skills) previously followed symlinks while building `.skill` archives.\n\nIf an author runs this script on a crafted local skill directory containing symlinks to files outside the skill root, the resulting archive can include unintended file contents.\n\n## Severity and Exposure\n\n- **Severity: Low**\n- **Execution context:** local/manual workflow only (skill author packaging step)\n- **No remote trigger:** this is not reachable via normal OpenClaw gateway/chat runtime paths\n- **No extraction Zip Slip in this finding:** this issue is limited to packaging-time symlink following\n\n## Impact\n\n- Potential unintentional disclosure of local files from the packaging machine into a generated `.skill` artifact.\n- Requires local execution of the packaging script on attacker-controlled skill contents.\n\n## Affected Components\n\n- `skills/skill-creator/scripts/package_skill.py`\n\n## Affected Packages / Versions\n\n- Package: `openclaw` (npm)\n- Latest published version during triage: `2026.2.17`\n- Vulnerable version range: `\u003c= 2026.2.17`\n- Planned patched version (next release): `2026.2.18`\n\n## Remediation\n\n- Reject symlinks during skill packaging.\n- Add regression tests for symlink file and symlink directory cases.\n- Update packaging guidance to document the symlink restriction.\n\n## Fix Commit(s)\n\n- `c275932aa4230fb7a8212fe1b9d2a18424874b3f`\n- `ee1d6427b544ccadd73e02b1630ea5c29ba9a9f0`\n\n## Related PR\n\n- https://github.com/openclaw/openclaw/pull/20796\n\n## Release Process Note\n\n`patched_versions` is pre-set to the planned next release (`2026.2.18`). Once npm `openclaw@2026.2.18` is published, this advisory is ready to publish without additional edits.\n\nThanks @aether-ai-agent for reporting.","aliases":["CVE-2026-27485"],"modified":"2026-02-23T22:58:10.924871Z","published":"2026-02-20T21:05:45Z","database_specific":{"github_reviewed_at":"2026-02-20T21:05:45Z","nvd_published_at":"2026-02-21T10:16:12Z","cwe_ids":["CWE-61"],"severity":"MODERATE","github_reviewed":true},"references":[{"type":"WEB","url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-r6h2-5gqq-v5v6"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-27485"},{"type":"WEB","url":"https://github.com/openclaw/openclaw/pull/20796"},{"type":"WEB","url":"https://github.com/openclaw/openclaw/commit/c275932aa4230fb7a8212fe1b9d2a18424874b3f"},{"type":"WEB","url":"https://github.com/openclaw/openclaw/commit/ee1d6427b544ccadd73e02b1630ea5c29ba9a9f0"},{"type":"PACKAGE","url":"https://github.com/openclaw/openclaw"},{"type":"WEB","url":"https://github.com/openclaw/openclaw/releases/tag/v2026.2.19"}],"affected":[{"package":{"name":"openclaw","ecosystem":"npm","purl":"pkg:npm/openclaw"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2026.2.19"}]}],"database_specific":{"last_known_affected_version_range":"\u003c= 2026.2.18","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/02/GHSA-r6h2-5gqq-v5v6/GHSA-r6h2-5gqq-v5v6.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N"}]}