CVE-2026-28446

Q: How do I fix CVE-2026-28446?

Upgrade openclaw to 2026.2.2 or later.

Q: Is CVE-2026-28446 being actively exploited?

Not that we know of. CVE-2026-28446 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.65% is the estimated probability that it will be exploited in the next 30 days. That is higher than 48% of all scored CVEs.

Q: How severe is CVE-2026-28446?

CVE-2026-28446 has a CVSS v3 base score of 9.4, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2026-28446 affect?

Published advisories record a fix for openclaw (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

CRITICAL

9.4

CVSS v3

NVD

Description

OpenClaw versions prior to 2026.2.1 with the voice-call extension installed and enabled contain an authentication bypass vulnerability in inbound allowlist policy validation that accepts empty caller IDs and uses suffix-based matching instead of strict equality. Remote attackers can bypass inbound access controls by placing calls with missing caller IDs or numbers ending with allowlisted digits to reach the voice-call agent and execute tools.

CWE-303

How to fix

Remediation Available

openclawNVD

Affected:< 2026.2.2Fixed in:2026.2.2CVE-2026-28446derived 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 ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityLow

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

Exploit Intelligence

0.65%probability of exploitation in 30 days

48thpercentile

Moderate risk: more likely to be exploited than 48% of all known CVEs.

References

Patch1

github.com

Exploit1

github.com

Third-Party Advisory1

vulncheck.com

Related Vulnerabilities

Other CWE-303 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-7593	Critical	9.8	100%	KEV	-
CVE-2023-29357	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2020-8863	High	8.8	77%	-	-
CVE-2023-32152	Medium	6.5	29%	-	-
CVE-2023-32148	Medium	6.5	29%	-	-
CVE-2022-20695	Critical	10.0	20%	-	-

Common questions

How do I fix CVE-2026-28446?

Upgrade openclaw to 2026.2.2 or later.

Is CVE-2026-28446 being actively exploited?

Not that we know of. CVE-2026-28446 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.65% is the estimated probability that it will be exploited in the next 30 days. That is higher than 48% of all scored CVEs.

How severe is CVE-2026-28446?

CVE-2026-28446 has a CVSS v3 base score of 9.4, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2026-28446 affect?

Published advisories record a fix for openclaw (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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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 2026-03-11.