CVE-2026-35627: OpenClaw before 2026.3.22 performs cryptographic and dispatch operations on inbound Nostr direct messages befo

Routine

MEDIUM 6.5REMOTEUPGRADE

CVE-2026-35627 is a medium-severity flaw (CVSS 6.5) affecting openclaw. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

OpenClaw before 2026.3.22 performs cryptographic and dispatch operations on inbound Nostr direct messages before enforcing sender and pairing policy validation. Attackers can trigger unauthorized pre-authentication computation by sending crafted DM messages, enabling denial of service through resource exhaustion.

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 61%)
CISA exploited list	No
Weakness	CWE-696
Published	2026-04-09
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

2026-04-09 22:16 UTCPublished CVE record published
2026-06-17 10:40 UTCUpdated Record last modified

openclaw openclaw UPGRADE

Affected: < 2026.3.22

Fixed in: 2026.3.22

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls openclaw

2. UPGRADE to 2026.3.22

npm install openclaw@">=2026.3.22"

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-2026-35627?

openclaw: upgrade to 2026.3.22. Exact commands for each OS are on this page.

Is CVE-2026-35627 being exploited?

CVE-2026-35627 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-2026-35627 affect?

CVE-2026-35627 affects openclaw. Severity is medium (CVSS 6.5). OpenClaw before 2026.3.22 performs cryptographic and dispatch operations on inbound Nostr direct messages before enforcing sender and pairing policy validation. Attackers can trigger unauthorized pre-authentication computation by sending cr

How urgent is CVE-2026-35627?

Priority 38/100. Remotely exploitable, no login, no user action

Related CVEs

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CVE-2026-53846 HIGH 7.1 UPGRADE OpenClaw before 2026.4.29 contains a path traversal vulnerability in the install helper that allows workspace
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References

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