CVE-2026-33581 json
OpenClaw < 2026.3.24 - Arbitrary File Read via mediaUrl and fileUrl Parameters
published 7mo ago modified last mo. also GHSA-v8wv-jg3q-qwpq , EUVD-2026-17441
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 47%
- public exploits
- 0
- none known
Summary
OpenClaw before 2026.3.24 contains a sandbox bypass vulnerability in the message tool that allows attackers to read arbitrary local files by using mediaUrl and fileUrl alias parameters that bypass localRoots validation. Remote attackers can exploit this by routing file requests through unvalidated alias parameters to access files outside the intended sandbox directory.
Patch / fix
Is CVE-2026-33581 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 7mo ago
Exploit prediction
0.58% chance of exploitation in the next 30 days, higher than 47% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 7.1 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N |
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| CNA | 4.0 | 7.1 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/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 |
| NVD | 3.1 | 8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N |
| GitHub | 3.1 | 6.2 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | openclaw | <2026.3.24 |
2026.3.24 |
Affected products
- OpenClaw OpenClaw
Classification
- Weakness
-
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory
References
-
github.com
/openclaw/openclaw/commit/1d7cb6fc03552bbba00e7cffb3aa9741f5556416
patch, web
-
github.com
/openclaw/openclaw/security/advisories/GHSA-v8wv-jg3q-qwpq
vendor-advisory, web
-
vulncheck.com
/advisories/openclaw-arbitrary-file-read-via-mediaurl-and-fileurl-parameters
third-party-advisory, web
-
nvd.nist.gov
/vuln/detail/CVE-2026-33581
advisory
-
github.com
/openclaw/openclaw
package
Sources
- CVE List CVE-2026-33581
- GitHub Advisory GHSA-v8wv-jg3q-qwpq
- NVD CVE-2026-33581
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