CVE-2026-28452

Service interruption via unbounded archive extraction

Published Mar 5, 2026 · Updated Mar 5, 2026

Resource exhaustion in OpenClaw before 2026.2.14 allows local users to interrupt service through a high-expansion ZIP or TAR archive. The extractArchive function in src/infra/archive.ts processed entries without count or byte budgets, allowing compressed input to exhaust CPU, memory, or disk. A user must start an install or update flow using the crafted archive; resource exhaustion then degrades the service or makes the system unavailable.

CVSS severity6.7
Medium
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource exhaustion in OpenClaw before 2026.2.14 allows local users to interrupt service through a high-expansion ZIP or TAR archive. The extractArchive function in src/infra/archive.ts processed entries without count or byte budgets, allowing compressed input to exhaust CPU, memory, or disk. A user must start an install or update flow using the crafted archive; resource exhaustion then degrades the service or makes the system unavailable.

The record

CVE
CVE-2026-28452
Published
Mar 5, 2026
Updated
Mar 5, 2026
Vendor
OpenClaw Foundation
Product
OpenClaw
Classifications
CWE-770, CWE-400, T1499, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2026.2.14

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

OpenClaw Foundation · OpenClawversion=0 <2026.2.14

Published CVSS scores

6.7VulnCheck CNACVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
5.5VulnCheck CNACVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
CWE-400Uncontrolled Resource Consumption
T1499Endpoint Denial of Service
T1204.002Malicious File

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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