CVE-2026-41398: OpenClaw before 2026.4.2 contains an improper access control vulnerability in the iOS A2UI bridge that treats

Routine

MEDIUM 4.6UPGRADE

CVE-2026-41398 is a medium-severity flaw (CVSS 4.6) affecting openclaw. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

OpenClaw before 2026.4.2 contains an improper access control vulnerability in the iOS A2UI bridge that treats generic local-network pages as trusted origins. Attackers can inject unauthorized agent.request runs by loading attacker-controlled pages from local-network or tailnet hosts, polluting session state and consuming budget.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.6 (Medium)
Attack vector	Adjacent network
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.1% (top 99%)
CISA exploited list	No
Weakness	CWE-346
Published	2026-04-28
Last modified	2026-06-17

Publisher (CNA): VulnCheck · Vendor: openclaw

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-28 19:37 UTCPublished CVE record published
2026-06-17 10:46 UTCUpdated Record last modified

openclaw openclaw UPGRADE

Affected: < 2026.4.2

Fixed in: 2026.4.2

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls openclaw

2. UPGRADE to 2026.4.2

npm install openclaw@">=2026.4.2"

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-2026-41398?

openclaw: upgrade to 2026.4.2. Exact commands for each OS are on this page.

Is CVE-2026-41398 being exploited?

CVE-2026-41398 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-2026-41398 affect?

CVE-2026-41398 affects openclaw. Severity is medium (CVSS 4.6). OpenClaw before 2026.4.2 contains an improper access control vulnerability in the iOS A2UI bridge that treats generic local-network pages as trusted origins. Attackers can inject unauthorized agent.request runs by loading attacker-controlle

How urgent is CVE-2026-41398?

Priority 16/100. No elevated risk signals yet.

Software pages

iOS vulnerabilities

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References

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