Advisory details:
github_osv / GHSA-pchc-86f6-8758
| Advisory ID | github_osv/GHSA-pchc-86f6-8758 |
| Aliases |
CVE-2026-26316
|
| Summary | OpenClaw BlueBubbles webhook auth bypass via loopback proxy trust ### Summary In affected versions, the optional BlueBubbles iMessage channel plugin could accept webhook requests as authenticated based only on the TCP peer address being loopback (`127.0.0.1`, `::1`, `::ffff:127.0.0.1`) even when the configured webhook secret was missing or incorrect. This does not affect the default iMessage integration unless BlueBubbles is installed and enabled. ### Affected Packages / Versions - npm: `openclaw` `< 2026.2.13` - npm: `@openclaw/bluebubbles` `< 2026.2.13` ### Details If a deployment exposes the BlueBubbles webhook endpoint through a same-host reverse proxy (or an attacker can reach loopback via SSRF), an unauthenticated party may be able to inject inbound webhook events into the agent pipeline. ### Fix Commit(s) - f836c385ffc746cb954e8ee409f99d079bfdcd2f - 743f4b28495cdeb0d5bf76f6ebf4af01f6a02e5a (defense-in-depth) ### Mitigations - Set a non-empty BlueBubbles webhook password. - Avoid deployments where a public-facing reverse proxy forwards to a loopback-bound Gateway without strong upstream authentication. Thanks @MegaManSec (https://joshua.hu) of [AISLE Research Team](https://aisle.com/) for reporting. |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 6.8 |
| Risk | 3.4 |
| Affected and Fixed Packages | Package Details |
| Introduced and Fixed Package Commit Patches | Package Commit Patches Details |
| CWE-863 | Incorrect Authorization |
| System | Score | Found at |
|---|---|---|
| cvssv3.1 | 7.5 | https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/02/GHSA-pchc-86f6-8758/GHSA-pchc-86f6-8758.json |
| generic_textual | HIGH |
No EPSS data available for this advisory.
| Patch URL | |
|---|---|
| There are no known patches. | |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-02-20T15:32:08Z/
Decision: Track
Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/26xxx/CVE-2026-26316.json
Source Advisory: vulnrichment/CVE-2026-26316
[{'Exploitation': 'none'},
{'Automatable': 'yes'},
{'Technical Impact': 'partial'},
{'Mission Prevalence': 'minimal'},
{'Public Well-being Impact': 'material'},
{'Mission & Well-being': 'medium'}]