CVE-2026-41408
OpenClaw < 2026.3.31 - Disk Exhaustion via Media Download Bypass
OpenClaw before 2026.3.31 contains a resource exhaustion vulnerability in media downloads that bypasses core safety limits for file size, count, and cleanup operations. Attackers can exhaust disk space by downloading media files without triggering intended safety restrictions, causing availability impact.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
OpenClaw < 2026.3.31 - Disk Exhaustion via Media Download Bypass
OpenClaw before 2026.3.31 contains a resource exhaustion vulnerability in media downloads that bypasses core safety limits for file size, count, and cleanup operations. Attackers can exhaust disk space by downloading media files without triggering intended safety restrictions, causing availability impact.
- Record
CVE-2026-41408- CVSS 4.0
- 2.3 Low
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N - CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L - Weakness
- CWE-770
- Updated
- 2026-11-02
EUVDEUVD-2026-26115
OpenClaw before 2026.3.31 contains a resource exhaustion vulnerability in media downloads that bypasses core safety limits for file size, count, and cleanup operations. Attackers can exhaust disk space by downloading media files without triggering intended safety restrictions, causing availability impact.
- Record
EUVD-2026-26115- CVSS 4.0
- 2.3 Low
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-4g5x-2jfc-xm98
OpenClaw: Tlon media downloads can bypass core safety limits and exhaust disk
Summary
Tlon media downloads can bypass core safety limits and exhaust disk
Current Maintainer Triage
- Status: narrow
- Normalized severity: low
- Assessment: Shipped v2026.3.28 Tlon media downloads bypassed core size/count/cleanup limits, but this is availability-only resource exhaustion in a bundled plugin path, so low.
Affected Packages / Versions
- Package:
openclaw(npm) - Latest published npm version:
2026.3.31 - Vulnerable version range:
<=2026.3.28 - Patched versions:
>= 2026.3.31 - First stable tag containing the fix:
v2026.3.31
Fix Commit(s)
2194587d70d2aef863508b945319c5a7c88b12ce— 2026-03-31T19:40:15+09:00
Release Process Note
- The fix is already present in released version
2026.3.31. - This draft looks ready for final maintainer disposition or publication, not additional code-fix work.
Thanks @AntAISecurityLab for reporting.
- Record
GHSA-4g5x-2jfc-xm98- CVSS 4.0
- 6.3 Medium
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N - CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-434, CWE-770
- Updated
- 2026-11-02
NVD
OpenClaw before 2026.3.31 contains a resource exhaustion vulnerability in media downloads that bypasses core safety limits for file size, count, and cleanup operations. Attackers can exhaust disk space by downloading media files without triggering intended safety restrictions, causing availability impact.
- Record
CVE-2026-41408- CVSS 4.0
- 2.3 Low
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/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 - CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L - CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-770
- Updated
- 2026-11-02
OSV
OpenClaw < 2026.3.31 - Disk Exhaustion via Media Download Bypass
OpenClaw before 2026.3.31 contains a resource exhaustion vulnerability in media downloads that bypasses core safety limits for file size, count, and cleanup operations. Attackers can exhaust disk space by downloading media files without triggering intended safety restrictions, causing availability impact.
- Record
CVE-2026-41408- CVSS 4.0
- 2.3 Low
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N - Weakness
- CWE-770
- Updated
- 2026-11-02
OSVGHSA-4g5x-2jfc-xm98
OpenClaw: Tlon media downloads can bypass core safety limits and exhaust disk
Summary
Tlon media downloads can bypass core safety limits and exhaust disk
Current Maintainer Triage
- Status: narrow
- Normalized severity: low
- Assessment: Shipped v2026.3.28 Tlon media downloads bypassed core size/count/cleanup limits, but this is availability-only resource exhaustion in a bundled plugin path, so low.
Affected Packages / Versions
- Package:
openclaw(npm) - Latest published npm version:
2026.3.31 - Vulnerable version range:
<=2026.3.28 - Patched versions:
>= 2026.3.31 - First stable tag containing the fix:
v2026.3.31
Fix Commit(s)
2194587d70d2aef863508b945319c5a7c88b12ce— 2026-03-31T19:40:15+09:00
Release Process Note
- The fix is already present in released version
2026.3.31. - This draft looks ready for final maintainer disposition or publication, not additional code-fix work.
Thanks @AntAISecurityLab for reporting.
- Record
GHSA-4g5x-2jfc-xm98- CVSS 4.0
- 6.3 Medium
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N - CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-434, CWE-770
- Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-41408 is a low vulnerability (CVSS 2.3) in Openclaw, published April 7, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.34%, the 28th percentile. Fixed in openclaw 2026.3.31.
References
github.com/openclaw/openclaw/security/advisories/GHSA-4g5x-2jfc-xm98
vulncheck.com/advisories/openclaw-disk-exhaustion-via-media-download-bypass
nvd.nist.gov/vuln/detail/CVE-2026-41408