Is CVE-2026-35635 in the CISA KEV catalog?

No. CVE-2026-35635 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-35635?

CVE-2026-35635 has a CVSS v3 base score of 4.8 (MEDIUM).

What is the EPSS score for CVE-2026-35635?

CVE-2026-35635 has an EPSS score of 0.24% (16th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-35635?

Upgrade openclaw to 2026.3.22 or later.

CVE & CISA-KEV Catalog

CVE-2026-35635

MEDIUM

4.8

CVSS v3

NVD

Description

OpenClaw before 2026.3.22 contains a webhook path route replacement vulnerability in the Synology Chat extension that allows attackers to collapse multi-account configurations onto shared webhook paths. Attackers can exploit inherited or duplicate webhook paths to bypass per-account DM access control policies and replace route ownership across accounts.

CWE-706 CWE-863Incorrect Authorization

How to fix

Remediation Available

openclawNVD

Affected:< 2026.3.22Fixed in:2026.3.22CVE-2026-35635derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Exploit Intelligence

0.24%probability of exploitation in 30 days

16thpercentile

Low risk: more likely to be exploited than 16% of all known CVEs.

References

Patch2

Vendor Advisory1

github.com

Third-Party Advisory1

vulncheck.com

Related Vulnerabilities

Other CWE-706 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-24813	Critical	9.8	100%	KEV	Fix
CVE-2020-15505	Critical	9.8	100%	KEV	Fix
CVE-2021-40539	Critical	9.8	99%	KEV + Ransom	Fix
CVE-2024-27292	High	7.5	69%	-	Fix
CVE-2021-40856	High	7.5	51%	-	-
CVE-2021-24122	Medium	5.9	23%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-15.