OpenClaw: Feishu extension resolveUploadInput bypasses file-system sandbox and allows arbitrary file reads via upload_image

MEDIUM 6.5CVE-2026-41363 · GHSA-qf48-qfv4-jjm9 · Published 28/04/2026 · updated 24/07/2026

In short

CVE-2026-41363 is a MEDIUM (CVSS 6.5) vulnerability affecting openclaw (openclaw), openclaw.
Chance of exploitation in the next 30 days (EPSS): 0.34%, higher than 27.4% of all vulnerabilities.
Fix: update to 2026.3.28 or later.

Package	Affected versions	Patched versions
openclaw openclaw	`≥ 2026.2.6, < 2026.3.28`	`2026.3.28`
openclaw npm	`≥ 2026.2.6, < 2026.3.28`	`2026.3.28`

Description

Summary

Feishu upload path resolution could read files outside the configured localRoots sandbox before handing them to the upload path.

Impact

A tool caller constrained to workspace or localRoots paths could exfiltrate arbitrary host files through Feishu upload actions.

Affected Component

extensions/feishu/src/docx.ts

Fixed Versions

Affected: >= 2026.2.6, <= 2026.3.24
Patched: >= 2026.3.28
Latest stable 2026.3.28 contains the fix.

Fix

Fixed by commit 764394c78b (fix: enforce localRoots sandbox on Feishu docx upload file reads).

NVD description

OpenClaw versions 2026.2.6 through 2026.3.24 contain a path traversal vulnerability in the Feishu extension resolveUploadInput function that bypasses file-system sandbox restrictions. Attackers can exploit improper path resolution during upload_image operations to read arbitrary files outside configured localRoots boundaries.

References

openclaw/openclaw security advisory · WEB
nvd.nist.gov/vuln/detail/CVE-2026-41363 · ADVISORY
openclaw/openclaw commit 764394c · WEB
openclaw/openclaw · PACKAGE
vulncheck.com/advisories/openclaw-arbitrary-file-read-via-feishu-upload-image-parameter · WEB

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Package

Affected versions

Patched versions

openclaw

≥ 2026.2.6, < 2026.3.28

2026.3.28

openclaw

npm

≥ 2026.2.6, < 2026.3.28

2026.3.28

Description

Summary

Feishu upload path resolution could read files outside the configured localRoots sandbox before handing them to the upload path.

Impact

A tool caller constrained to workspace or localRoots paths could exfiltrate arbitrary host files through Feishu upload actions.

Affected Component

extensions/feishu/src/docx.ts

Fixed Versions

Affected: >= 2026.2.6, <= 2026.3.24
Patched: >= 2026.3.28
Latest stable 2026.3.28 contains the fix.

Fix

Fixed by commit 764394c78b (fix: enforce localRoots sandbox on Feishu docx upload file reads).

NVD description

More vulnerabilities in openclaw

See all →