Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-rc8f-r29c-chr6
Advisory ID github_osv/GHSA-rc8f-r29c-chr6
Aliases
Summary Duplicate Advisory: OpenClaw: BlueBubbles Webhook Missing Rate Limiting Enables Brute-Force Password Guessing ## Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-xq8g-hgh6-87hv. This link is maintained to preserve external references. ## Original Description OpenClaw before 2026.3.25 contains a missing rate limiting vulnerability in webhook authentication that allows attackers to brute-force weak webhook passwords without throttling. Remote attackers can repeatedly submit incorrect password guesses to the webhook endpoint to compromise authentication and gain unauthorized access.
Status Published
Exploitability 0.5
Weighted Severity 5.7
Risk 2.9
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (1)
CWE-307 Improper Restriction of Excessive Authentication Attempts
System Score Found at
cvssv3.1 4.8 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-rc8f-r29c-chr6/GHSA-rc8f-r29c-chr6.json
cvssv4 6.3 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-rc8f-r29c-chr6/GHSA-rc8f-r29c-chr6.json
generic_textual MODERATE
Reference id Reference type URL
https://github.com/openclaw/openclaw/commit/5e08ce36d522a1c96df2bfe88e39303ae2643d92
https://github.com/openclaw/openclaw/security/advisories/GHSA-xq8g-hgh6-87hv
CVE-2026-35623 https://nvd.nist.gov/vuln/detail/CVE-2026-35623
openclaw-brute-force-attack-via-missing-webhook-password-rate-limiting Advisory https://www.vulncheck.com/advisories/openclaw-brute-force-attack-via-missing-webhook-password-rate-limiting
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-rc8f-r29c-chr6/GHSA-rc8f-r29c-chr6.json
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: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-rc8f-r29c-chr6/GHSA-rc8f-r29c-chr6.json
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

There are no SSVC decisions available.