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.
CVE-2026-35627
“—” beside the score: it is equal to the CVSS score beside it.
This medium-severity CVE scores 6.5 under the CNA's CVSS (NVD's own analysis pending). EPSS exploit probability: 0.5% (39th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.
Also known asEUVD-2026-21112 (ENISA EUVD) · GHSA-65h8-27jh-q8wv (GitHub Security Advisories)Source: ENISA EUVD
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v3
- 6.5
- EG Score
- 6.5MEDIUMmedium confidence
- EG Risk
- 44EG Risk 44/100
EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.
How it’s computed (value × EchelonGraph’s weight)Severity65% × 45%Impact severity (EG Severity): CVSS 6.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.Exploitation0.4% × 40%FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.Automatability100% × 15%CISA's SSVC Automatable value: yes (Vulnrichment).SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high. - EPSS PROB
- 0.5%
- EPSS %ILE
- 39th
- KEV
- Not listed
What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)
The EG score (6.5): severity, escalated by confirmed exploitation. This CVE's 6.5 is its impact severity (EG Severity), not escalated.
- EG Severity
- 6.5 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.the CNA's CVSS · CVSS v3.0 or v3.1
- EG Likelihood
- 0.5% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-31). FIRST's exploitation probability, not an EchelonGraph model.
- Confirmed exploitation
- None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
- EG Priority
- SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.
SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).
A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table
BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.
The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it
Published
April 9, 2026
Last Modified
June 23, 2026
Advisory Details (4)
Auto-updated Aug 2, 2026OpenClaw < 2026.3.22 - Unauthenticated Cryptographic Work in Nostr Inbound DM Handling | Advisories | VulnCheck
https://www.vulncheck.com/advisories/openclaw-unauthenticated-cryptographic-work-in-nostr-inbound-dm-handlingcommit 1ee9611079e8 (openclaw/openclaw)
Fix landed in openclaw/openclaw commit 1ee9611079e8 — awaiting tagged release
https://github.com/openclaw/openclaw/commit/1ee9611079e81b9122f4bed01abb3d9f56206c77commit 630f1479c44f (openclaw/openclaw)
Fix landed in openclaw/openclaw commit 630f1479c44f — awaiting tagged release
https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87Nostr inbound DMs could trigger unauthenticated crypto work before sender policy enforcement. · Advisory · openclaw/openclaw · GitHub
https://github.com/openclaw/openclaw/security/advisories/GHSA-65h8-27jh-q8wvPatch Availability(1)
| Vendor / Ecosystem | Fix (by version range) / Patch | Released | Source |
|---|---|---|---|
| npm | openclaw @ 2026.3.22 (fixes < 2026.3.22) | — | ghsa |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(1 across 1 ecosystem)
npm(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| openclaw | — |
| — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 10× in last 7d / 41× in last 30d)
Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.
Showing the most recent 99 of 211 refreshes on record for this CVE.
A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 1 repeat row among the latest 100 is merged into the row it repeats. The 112 oldest rows on record are not shown and were not checked, so the counts can still include repeats.
- 2026-11-02 16:44 UTCEPSS rescoreEPSS 0.5% · 39th percentile
- 2026-11-01 16:34 UTCEPSS rescoreEPSS 0.5% · 39th percentile
- 2026-11-01 07:52 UTCGHSA enrichmentGHSA-65h8-27jh-q8wv · GitHub severity HIGH
- 2026-11-01 07:52 UTCEG score recompute
- 2026-10-31 16:32 UTCEPSS rescoreEPSS 0.5% · 39th percentile
- 2026-10-30 19:55 UTCOSV refresh
- 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.5% · 39th percentile
- 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.5% · 39th percentile
- 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.5% · 39th percentile
- 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.5% · 39th percentile
- 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.5% · 39th percentile
- 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.5% · 39th percentile
- 2026-10-25 14:32 UTCEG score recompute
- 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.7% · 51st percentile
- 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.7% · 51st percentile
- 2026-10-23 03:05 UTCEG score recompute
- 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.7% · 51st percentile
- 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.7% · 51st percentile
- 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.7% · 50th percentile
- 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.7% · 50th percentile
- 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.7% · 50th percentile
- 2026-10-18 03:44 UTCEG score recompute
- 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.7% · 50th percentile
- 2026-10-16 16:41 UTCEPSS rescoreEPSS 0.7% · 50th percentile
- 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.7% · 50th percentile
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- 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.7% · 50th percentile
- 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.7% · 50th percentile
- 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.7% · 50th percentile
- 2026-10-12 16:11 UTCEG score recompute
- 2026-10-11 19:53 UTCEG score recompute
- 2026-10-11 17:07 UTCEG score recompute
- 2026-10-11 14:33 UTCEG score recompute
- 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.7% · 50th percentile
- 2026-10-10 21:23 UTCOSV refresh
- 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.7% · 50th percentile
- 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.7% · 50th percentile
- 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.7% · 50th percentile
- 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.7% · 50th percentile
- 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.7% · 50th percentile
- 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.7% · 50th percentile
- 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.7% · 50th percentile
- 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.7% · 50th percentile
- 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.7% · 50th percentile
- 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.7% · 49th percentile
- 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.7% · 49th percentile
- 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.7% · 49th percentile
- 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.7% · 49th percentile
- 2026-09-26 00:26 UTCEPSS rescoreEPSS 0.7% · 49th percentile
- 2026-09-21 08:49 UTCOSV refresh
- 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.5% · 38th percentile
- 2026-09-17 19:30 UTCEPSS rescoreEPSS 0.5% · 38th percentile
- 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.5% · 38th percentile
- 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.5% · 38th percentile
- 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.5% · 38th percentile
- 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.5% · 38th percentile
- 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.5% · 38th percentile
- 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.5% · 38th percentile
- 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.5% · 38th percentile
- 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.5% · 38th percentile
- 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.5% · 38th percentile
- 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-09-02 06:44 UTCOSV refresh
- 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-08-16 07:07 UTCEG score recompute
- 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-08-14 05:06 UTCEG score recompute
- 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-08-12 19:18 UTCEG score recompute
- 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-08-11 05:25 UTCEG score recompute
- 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-08-10 04:58 UTCEG score recompute
- 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-08-09 04:32 UTCEG score recompute
- 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-08-07 14:24 UTCEG score recompute
- 2026-08-06 13:46 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-08-05 23:44 UTCEG score recompute
- 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-08-04 15:10 UTCEPSS rescoreEPSS 0.5% · 37th percentile
- 2026-08-04 10:38 UTCEPSS rescoreEPSS 0.5% · 37th percentile
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Frequently asked(5)
What is CVE-2026-35627?
When was CVE-2026-35627 made public?
Is CVE-2026-35627 actively exploited?
What is the CVSS score of CVE-2026-35627?
How do I remediate CVE-2026-35627?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-35627
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