{"id":"GHSA-9mph-4f7v-fmvh","aliases":[],"status":"published","title":"OpenClaw has agent avatar symlink traversal in gateway session metadata","description":"## Summary\nA crafted local avatar path could follow a symlink outside the agent workspace and return arbitrary file contents as a base64 `data:` URL in gateway responses.\n\n## Impact\n- Confidentiality impact: local file read in the gateway process context.\n- Exfiltration path: `agents.list` can return the resulting `avatarUrl` payload.\n\n## Affected Components\n- `src/gateway/session-utils.ts` (`resolveIdentityAvatarUrl`)\n\n## Affected Packages / Versions\n- Package: `openclaw` (npm)\n- Introduced: `v2026.1.21`\n- Affected published versions: `\u003c= 2026.2.21-2`\n- Planned patched version: `2026.2.22`\n\n## Remediation\n- Resolve workspace and avatar paths with `realpath` and enforce realpath containment.\n- Open files with `O_NOFOLLOW` when available.\n- Compare pre-open and opened file identity (`dev`/`ino`) to block swap races.\n- Add regression tests for outside-workspace symlink rejection and in-workspace symlink allowance.\n\n## Fix Commit(s)\n- `3d0337504349954237d09e4d957df5cb844d5e77`\n\nOpenClaw thanks @aether-ai-agent for reporting.","severity":{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium","from":"ghsa"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-59"],"published":"2026-03-04T19:02:59Z","modified":"2026-03-04T19:16:31Z","fixes":[{"ecosystem":"npm","package":"openclaw","fixed_in":["2026.2.22"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"openclaw","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2026.2.22"}]}]},{"source":"osv","ecosystem":"npm","package":"openclaw","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2026.2.22"}]}]}],"references":[{"url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-9mph-4f7v-fmvh","tags":["web"]},{"url":"https://github.com/openclaw/openclaw/commit/3d0337504349954237d09e4d957df5cb844d5e77","tags":["web"]},{"url":"https://github.com/advisories/GHSA-9mph-4f7v-fmvh"},{"url":"https://github.com/openclaw/openclaw","tags":["package"]}],"sources":{"ghsa":[{"id":"GHSA-9mph-4f7v-fmvh","title":"OpenClaw has agent avatar symlink traversal in gateway session metadata","description":"## Summary\nA crafted local avatar path could follow a symlink outside the agent workspace and return arbitrary file contents as a base64 `data:` URL in gateway responses.\n\n## Impact\n- Confidentiality impact: local file read in the gateway process context.\n- Exfiltration path: `agents.list` can return the resulting `avatarUrl` payload.\n\n## Affected Components\n- `src/gateway/session-utils.ts` (`resolveIdentityAvatarUrl`)\n\n## Affected Packages / Versions\n- Package: `openclaw` (npm)\n- Introduced: `v2026.1.21`\n- Affected published versions: `\u003c= 2026.2.21-2`\n- Planned patched version: `2026.2.22`\n\n## Remediation\n- Resolve workspace and avatar paths with `realpath` and enforce realpath containment.\n- Open files with `O_NOFOLLOW` when available.\n- Compare pre-open and opened file identity (`dev`/`ino`) to block swap races.\n- Add regression tests for outside-workspace symlink rejection and in-workspace symlink allowance.\n\n## Fix Commit(s)\n- `3d0337504349954237d09e4d957df5cb844d5e77`\n\nOpenClaw thanks @aether-ai-agent for reporting.","status":"published","published":"2026-03-04T19:02:59Z","modified":"2026-03-04T19:03:00Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-59"],"updated_at":"2026-11-02T14:39:31.060223Z"}],"osv":[{"id":"GHSA-9mph-4f7v-fmvh","title":"OpenClaw has agent avatar symlink traversal in gateway session metadata","description":"## Summary\nA crafted local avatar path could follow a symlink outside the agent workspace and return arbitrary file contents as a base64 `data:` URL in gateway responses.\n\n## Impact\n- Confidentiality impact: local file read in the gateway process context.\n- Exfiltration path: `agents.list` can return the resulting `avatarUrl` payload.\n\n## Affected Components\n- `src/gateway/session-utils.ts` (`resolveIdentityAvatarUrl`)\n\n## Affected Packages / Versions\n- Package: `openclaw` (npm)\n- Introduced: `v2026.1.21`\n- Affected published versions: `\u003c= 2026.2.21-2`\n- Planned patched version: `2026.2.22`\n\n## Remediation\n- Resolve workspace and avatar paths with `realpath` and enforce realpath containment.\n- Open files with `O_NOFOLLOW` when available.\n- Compare pre-open and opened file identity (`dev`/`ino`) to block swap races.\n- Add regression tests for outside-workspace symlink rejection and in-workspace symlink allowance.\n\n## Fix Commit(s)\n- `3d0337504349954237d09e4d957df5cb844d5e77`\n\nOpenClaw thanks @aether-ai-agent for reporting.","status":"published","published":"2026-03-04T19:02:59Z","modified":"2026-03-04T19:16:31.65484Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-59"],"updated_at":"2026-11-02T15:46:43.875515Z"}]}}