CVE-2026-62203: OpenClaw versions before 2026.6.6 contain an environment variable filtering vulnerability in host exec that fa

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HIGH 8.8UPGRADE

CVE-2026-62203 is a high-severity flaw (CVSS 8.8) affecting openclaw. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

OpenClaw versions before 2026.6.6 contain an environment variable filtering vulnerability in host exec that fails to properly sanitize rustup startup variables. Attackers with lower-trust caller access or configured input paths can execute or persist actions beyond their intended authorization level.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.5% (top 56%)
CISA exploited list	No
Weakness	CWE-184
Published	2026-07-17
Last modified	2026-10-23

Publisher (CNA): VulnCheck · Vendor: openclaw

Am I affected?

Timeline

2026-07-17 02:18 UTCPublished CVE record published
2026-10-23 23:10 UTCUpdated Record last modified

openclaw openclaw UPGRADE

Affected: < 2026.6.6

Fixed in: 2026.6.6

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls openclaw

2. UPGRADE to 2026.6.6

npm install openclaw@">=2026.6.6"

Exact fixes by distribution

Fedora 46 · kwin-zones · FIXED · 1.0.13-1.fc46 · FEDORA-2026-95888f332b · source

sudo dnf upgrade --advisory=FEDORA-2026-95888f332b

Fedora ELN · nginx-mod-brotli · FIXED · 1.0.0~rc-16.eln159 · FEDORA-2026-501a6a8273 · source

sudo dnf upgrade --advisory=FEDORA-2026-501a6a8273

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-62203?

openclaw: upgrade to 2026.6.6. Exact commands for each OS are on this page.

Is CVE-2026-62203 being exploited?

CVE-2026-62203 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-62203 affect?

CVE-2026-62203 affects openclaw. Severity is high (CVSS 8.8). OpenClaw versions before 2026.6.6 contain an environment variable filtering vulnerability in host exec that fails to properly sanitize rustup startup variables. Attackers with lower-trust caller access or configured input paths can execute

How urgent is CVE-2026-62203?

Priority 42/100. High severity

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References

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