CVE-2026-32896
Low
No strong exploitation signal.
CVSS base
4.8
MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
EPSS — probability of exploitation (30 days)
0.2%
16.6th percentile
CISA KEV
Not listed
Weakness / dates
CWE-306
Published 2026-03-21 · modified 2026-09-17
CVSS breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
| Attack Vector | N | Network |
| Attack Complexity | H | High |
| Privileges Required | N | None |
| User Interaction | N | None |
| Scope | U | Unchanged |
| Confidentiality | L | Low |
| Integrity | L | Low |
| Availability | N | None |
Timeline
- 2026-03-21 — Published (NVD)
- 2026-09-17 — Last modified (NVD)
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.
Affected
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