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CVE-2026-32049

OpenClaw < 2026.2.22 - Denial of Service via Inbound Media Download Byte Limit Bypass

8.7 HighFix available

OpenClaw versions prior to 2026.2.22 fail to consistently enforce configured inbound media byte limits before buffering remote media across multiple channel ingestion paths. Remote attackers can send oversized media payloads to trigger elevated memory usage and potential process instability.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

0.56%Up 0.5 points since Mar 21, 2026
90%50%10%1%

What each source reports

CVE List Score used 8.7

OpenClaw < 2026.2.22 - Denial of Service via Inbound Media Download Byte Limit Bypass

OpenClaw versions prior to 2026.2.22 fail to consistently enforce configured inbound media byte limits before buffering remote media across multiple channel ingestion paths. Remote attackers can send oversized media payloads to trigger elevated memory usage and potential process instability.

Record
CVE-2026-32049
CVSS 4.0
8.7 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-770
Updated
2026-11-02
EUVDEUVD-2026-13945 8.7

OpenClaw versions prior to 2026.2.22 fail to consistently enforce configured inbound media byte limits before buffering remote media across multiple channel ingestion paths. Remote attackers can send oversized media payloads to trigger elevated memory usage and potential process instability.

Record
EUVD-2026-13945
CVSS 4.0
8.7 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-rxxp-482v-7mrh 8.7

OpenClaw's inbound media downloads could exceed configured byte limits before rejection across multiple channels

Summary

OpenClaw did not consistently enforce configured inbound media byte limits before buffering remote media in several channel ingestion paths. A remote sender could trigger oversized downloads and memory pressure before rejection.

Affected Packages / Versions

  • Package: openclaw (npm)
  • Affected versions: <= 2026.2.21-2 (latest published at triage time)
  • Fixed in: 2026.2.22 (planned next release)

Impact

An attacker could cause elevated memory usage and potential process instability (denial of service) by sending oversized media payloads.

Fix Commit(s)

  • 73d93dee64127a26f1acd09d0403b794cdeb4f5c

Release Process Note

patched_versions is pre-set to the planned next release (2026.2.22). After that npm release is published, this advisory can be published without further version-field edits.

OpenClaw thanks @tdjackey for reporting.

Record
GHSA-rxxp-482v-7mrh
CVSS 4.0
8.7 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Weakness
CWE-400, CWE-770
Updated
2026-11-02
GitHub AdvisoriesGHSA-xq3g-m3j8-2vmm 8.7

Duplicate Advisory: OpenClaw's inbound media downloads could exceed configured byte limits before rejection across multiple channels

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-rxxp-482v-7mrh. This link is maintained to preserve external references.

Original Description

OpenClaw versions prior to 2026.2.22 fail to consistently enforce configured inbound media byte limits before buffering remote media across multiple channel ingestion paths. Remote attackers can send oversized media payloads to trigger elevated memory usage and potential process instability.

Record
GHSA-xq3g-m3j8-2vmm
CVSS 4.0
8.7 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/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
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-770
Updated
2026-11-02
NVD 8.7

OpenClaw versions prior to 2026.2.22 fail to consistently enforce configured inbound media byte limits before buffering remote media across multiple channel ingestion paths. Remote attackers can send oversized media payloads to trigger elevated memory usage and potential process instability.

Record
CVE-2026-32049
CVSS 4.0
8.7 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/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
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-770
Updated
2026-11-02
OSV 8.7

OpenClaw < 2026.2.22 - Denial of Service via Inbound Media Download Byte Limit Bypass

OpenClaw versions prior to 2026.2.22 fail to consistently enforce configured inbound media byte limits before buffering remote media across multiple channel ingestion paths. Remote attackers can send oversized media payloads to trigger elevated memory usage and potential process instability.

Record
CVE-2026-32049
CVSS 4.0
8.7 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Weakness
CWE-770
Updated
2026-11-02
OSVGHSA-rxxp-482v-7mrh 8.7

OpenClaw's inbound media downloads could exceed configured byte limits before rejection across multiple channels

Summary

OpenClaw did not consistently enforce configured inbound media byte limits before buffering remote media in several channel ingestion paths. A remote sender could trigger oversized downloads and memory pressure before rejection.

Affected Packages / Versions

  • Package: openclaw (npm)
  • Affected versions: <= 2026.2.21-2 (latest published at triage time)
  • Fixed in: 2026.2.22 (planned next release)

Impact

An attacker could cause elevated memory usage and potential process instability (denial of service) by sending oversized media payloads.

Fix Commit(s)

  • 73d93dee64127a26f1acd09d0403b794cdeb4f5c

Release Process Note

patched_versions is pre-set to the planned next release (2026.2.22). After that npm release is published, this advisory can be published without further version-field edits.

OpenClaw thanks @tdjackey for reporting.

Record
GHSA-rxxp-482v-7mrh
CVSS 4.0
8.7 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Weakness
CWE-400, CWE-770
Updated
2026-11-02
OSVGHSA-xq3g-m3j8-2vmm 8.7

Duplicate Advisory: OpenClaw's inbound media downloads could exceed configured byte limits before rejection across multiple channels

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-rxxp-482v-7mrh. This link is maintained to preserve external references.

Original Description

OpenClaw versions prior to 2026.2.22 fail to consistently enforce configured inbound media byte limits before buffering remote media across multiple channel ingestion paths. Remote attackers can send oversized media payloads to trigger elevated memory usage and potential process instability.

Record
GHSA-xq3g-m3j8-2vmm
CVSS 4.0
8.7 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/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
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-770
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
openclaw
npm
 before 2026.2.22
2026.2.22

History

History
RecordedChangedSources
affected
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-32049 is a high vulnerability (CVSS 8.7) in Openclaw, published March 2, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.56%, the 47th percentile. Fixed in openclaw 2026.2.22.

References

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