CVE-2026-32896
CVE-2026-32896 is a medium-severity vulnerability in Openclaw with a CVSS 3.x base score of 4.8. 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-306.
Key facts
- Severity: Medium (CVSS 3.x base score 4.8)
- CVSS v4: 6.3
- EPSS exploit prediction: 0% (16th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-13972
- Weakness: CWE-306
- Affected product: Openclaw
- Published:
- Last modified:
Description
The BlueBubbles webhook handler in OpenClaw versions prior to 2026.2.21 contains a passwordless fallback authentication path that allows unauthenticated webhook events in certain reverse-proxy or local routing configurations. Attackers can bypass webhook authentication by exploiting the loopback/proxy heuristics to send unauthenticated webhook events to the BlueBubbles plugin.
Frequently asked questions
- What is CVE-2026-32896?
- The BlueBubbles webhook handler in OpenClaw versions prior to 2026.2.21 contains a passwordless fallback authentication path that allows unauthenticated webhook events in certain reverse-proxy or local routing configurations. Attackers can bypass webhook authentication by exploiting the loopback/proxy heuristics to send unauthenticated webhook events to the BlueBubbles plugin.
- How severe is CVE-2026-32896?
- CVE-2026-32896 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2026-32896 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-32896?
- CVE-2026-32896 affects Openclaw. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-32896?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-32896 have an EU (EUVD) identifier?
- Yes. CVE-2026-32896 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-13972.
- When was CVE-2026-32896 published?
- CVE-2026-32896 was published on 2026-03-21 and last updated on 2026-06-17.
References
- https://github.com/openclaw/openclaw/commit/283029bdea23164ab7482b320cb420d1b90df806
- https://github.com/openclaw/openclaw/commit/6b2f2811dc623e5faaf2f76afaa9279637174590
- https://github.com/openclaw/openclaw/security/advisories/GHSA-5mx2-2mgw-x8rm
- https://www.vulncheck.com/advisories/openclaw-unauthenticated-webhook-access-via-passwordless-fallback-in-bluebubbles-plugin
Affected products (1)
- cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*
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