How severe is CVE-2026-33578?

CVE-2026-33578 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-33578 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-33578?

CVE-2026-33578 affects Openclaw. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-33578?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-33578 have an EU (EUVD) identifier?

Yes. CVE-2026-33578 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17435.

When was CVE-2026-33578 published?

CVE-2026-33578 was published on 2026-03-31 and last updated on 2026-06-17.

CVE-2026-33578

CVE-2026-33578 is a medium-severity vulnerability in Openclaw with a CVSS 3.x base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-863.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v4: 5.3
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-17435
Weakness: CWE-863
Affected product: Openclaw
Published: 2026-03-31
Last modified: 2026-06-17

Description

OpenClaw before 2026.3.28 contains a sender policy bypass vulnerability in the Google Chat and Zalouser extensions where route-level group allowlist policies silently downgrade to open policy. Attackers can exploit this policy resolution flaw to bypass sender restrictions and interact with bots despite configured allowlist restrictions.

Frequently asked questions

What is CVE-2026-33578?: OpenClaw before 2026.3.28 contains a sender policy bypass vulnerability in the Google Chat and Zalouser extensions where route-level group allowlist policies silently downgrade to open policy. Attackers can exploit this policy resolution flaw to bypass sender restrictions and interact with bots despite configured allowlist restrictions.
How severe is CVE-2026-33578?: CVE-2026-33578 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-33578 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-33578?: CVE-2026-33578 affects Openclaw. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-33578?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-33578 have an EU (EUVD) identifier?: Yes. CVE-2026-33578 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17435.
When was CVE-2026-33578 published?: CVE-2026-33578 was published on 2026-03-31 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*

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