How severe is CVE-2026-8305?

CVE-2026-8305 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-8305 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-8305?

CVE-2026-8305 affects Openclaw. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-8305?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-8305 have an EU (EUVD) identifier?

Yes. CVE-2026-8305 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29158.

When was CVE-2026-8305 published?

CVE-2026-8305 was published on 2026-05-11 and last updated on 2026-06-17.

CVE-2026-8305

CVE-2026-8305 is a high-severity vulnerability in Openclaw with a CVSS 3.x base score of 7.3. 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-287.

Key facts

Severity: High (CVSS 3.x base score 7.3)
CVSS v2: 7.5
CVSS v4: 5.5
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-29158
Weakness: CWE-287
Affected product: Openclaw
Published: 2026-05-11
Last modified: 2026-06-17

Description

A vulnerability was detected in OpenClaw up to 2026.1.24. The impacted element is the function handleBlueBubblesWebhookRequest of the file extensions/bluebubbles/src/monitor.ts of the component bluebubbles Webhook. Performing a manipulation results in improper authentication. It is possible to initiate the attack remotely. The exploit is now public and may be used. Upgrading to version 2026.2.12 is sufficient to resolve this issue. The patch is named a6653be0265f1f02b9de46c06f52ea7c81a836e6. The affected component should be upgraded.

Frequently asked questions

What is CVE-2026-8305?: A vulnerability was detected in OpenClaw up to 2026.1.24. The impacted element is the function handleBlueBubblesWebhookRequest of the file extensions/bluebubbles/src/monitor.ts of the component bluebubbles Webhook. Performing a manipulation results in improper authentication. It is possible to initiate the attack remotely. The exploit is now public and may be used. Upgrading to version 2026.2.12 is sufficient to resolve this issue. The patch is named a6653be0265f1f02b9de46c06f52ea7c81a836e6. The affected component should be upgraded.
How severe is CVE-2026-8305?: CVE-2026-8305 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-8305 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-8305?: CVE-2026-8305 affects Openclaw. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-8305?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-8305 have an EU (EUVD) identifier?: Yes. CVE-2026-8305 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29158.
When was CVE-2026-8305 published?: CVE-2026-8305 was published on 2026-05-11 and last updated on 2026-06-17.

References

Affected products (1)

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

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