What is the CVSS score of CVE-2026-28479?

CVE-2026-28479 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 0.0%.

How to fix or mitigate CVE-2026-28479?

Within 24 hours: Inventory all OpenClaw deployments and document versions currently in use; notify stakeholders of exposure status. Within 7 days: Implement network segmentation to restrict OpenClaw access to trusted networks only; enable enhanced logging and monitoring for suspicious cryptographic operations. Within 30 days: Evaluate upgrade path to patched version when available; consider alternative solutions if vendor provides no clear remediation timeline; conduct cryptographic audit of systems relying on OpenClaw for data protection.

Openclaw CVE-2026-28479

HIGH

Use of a Broken or Risky Cryptographic Algorithm (CWE-327)

2026-03-05 disclosure@vulncheck.com

GHSA-fh3f-q9qw-93j9

Information Disclosure Docker Openclaw

7.5

CVSS 3.1 · NVD

View

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

Access

Craft malicious sandbox configuration
Delivery

Generate SHA-1 collision with target cache key
Exploit

Poison identifier cache
Execution

Trigger unsafe sandbox state reuse
Impact

Achieve information disclosure

Vulnerability Assessment

Weakness	CWE CWE-327 OWASP Top 10:2025 A04:2025 - Cryptographic Failures ASVS 5.0 V11 - Cryptography Approved algorithm selection
Exploitation Conditions	OpenClaw versions prior to 2026.2.15 with Docker or browser sandbox configurations enabled using SHA-1 for cache key hashing. Attacker must be able to submit sandbox configuration requests to the application.
Impact	CVSS 7.5 (HIGH). Attack vector: Network. Complexity: Low. Privileges required: None. User interaction: None.
Exploit ScenarioDerived	An attacker could exploit this vulnerability to compromise the affected system.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

Patch available 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

OpenClaw versions up to 2026.2.15 is affected by use of a broken or risky cryptographic algorithm (CVSS 7.5).

RemediationAI

Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.

Affected Packages

npm openclaw fix: 2026.2.15

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in npm

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability (CWE-327: Use of a Broken or Risky Cryptographic Algorithm) affects OpenClaw. OpenClaw versions prior to 2026.2.15 use SHA-1 to hash sandbox identifier cache keys for Docker and browser sandbox configurations, which is deprecated and vulnerable to collision attacks. An attacker can exploit SHA-1 collisions to cause cache poisoning, allowing one sandbox configuration to be misinterpreted as another and enabling unsafe sandbox state reuse.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 7.5 HIGH

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

Patch released

Mar 31, 2026 - 21:13 nvd

Patch available

CVE Published

Mar 05, 2026 - 22:16 nvd

HIGH 7.5

DescriptionCVE.org

OpenClaw versions prior to 2026.2.15 use SHA-1 to hash sandbox identifier cache keys for Docker and browser sandbox configurations, which is deprecated and vulnerable to collision attacks. An attacker can exploit SHA-1 collisions to cause cache poisoning, allowing one sandbox configuration to be misinterpreted as another and enabling unsafe sandbox state reuse.

Executive ViewAI

Why It Matters

OpenClaw versions through 2026.2.15 contain a cryptographic weakness that could allow attackers to compromise data confidentiality and integrity. Organizations running affected versions face elevated risk of unauthorized access to sensitive information, with no vendor patch currently available to remediate the vulnerability.

Business Impact: High

Compensating Controls

Network segmentation to limit exposure surface; restrict OpenClaw access to internal networks only; implement Web Application Firewall (WAF) rules to detect anomalous cryptographic patterns; disable OpenClaw features non-critical to operations; enforce multi-factor authentication for systems accessing OpenClaw; increase logging and monitoring for authentication and data access anomalies; consider air-gapping critical systems dependent on OpenClaw encryption until patch is available.

Threat Intelligence Overview

EPSS Score

0.0%

Top 97% exploitable

Data Quality

5 sources

Confidence: Medium

NVD

CVE.org

EPSS

GitHub

VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV No

Public POC No

EPSS 0.0%

Patch available Yes

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Yes

Human Impact

High

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +38

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.