CVE-2026-28454

HIGH EPSS 16.8%
Published Mar 5, 20263mo ago · Modified Jun 17, 20262w ago
8.2 CVSS 4.0
High
Find Similar
Published Mar 5, 2026 3mo ago
Last Modified Jun 17, 2026 2w ago

Description

OpenClaw versions prior to 2026.2.2 fail to validate webhook secrets in Telegram webhook mode (must be enabled), allowing unauthenticated HTTP POST requests to the webhook endpoint that trust attacker-controlled JSON payloads. Remote attackers can forge Telegram updates by spoofing message.from.id and chat.id fields to bypass sender allowlists and execute privileged bot commands.

CVSS Details

Base Score
8.2
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/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
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
16.8% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-345

Affected Products 1

VendorProductVersionRange
openclawopenclaw* <2026.2.2

References 6

  • github.com https://github.com/openclaw/openclaw/commit/3cbcba10cf30c2ffb898f0d8c7dfb929f15f8930
    Patch
  • github.com https://github.com/openclaw/openclaw/commit/5643a934799dc523ec2ef18c007e1aa2c386b670
    Patch
  • github.com https://github.com/openclaw/openclaw/commit/633fe8b9c17f02fcc68ecdb5ec212a5ace932f09
    Patch
  • github.com https://github.com/openclaw/openclaw/commit/ca92597e1f9593236ad86810b66633144b69314d
    Patch
  • github.com https://github.com/openclaw/openclaw/security/advisories/GHSA-fhvm-j76f-qmjv
    MitigationVendor Advisory
  • vulncheck.com https://www.vulncheck.com/advisories/openclaw-authorization-bypass-via-unauthenticated-telegram-webhook
    Third Party Advisory

Remediation

  • github.com https://github.com/openclaw/openclaw/commit/3cbcba10cf30c2ffb898f0d8c7dfb929f15f8930
    Patch
  • github.com https://github.com/openclaw/openclaw/commit/5643a934799dc523ec2ef18c007e1aa2c386b670
    Patch
  • github.com https://github.com/openclaw/openclaw/commit/633fe8b9c17f02fcc68ecdb5ec212a5ace932f09
    Patch
  • github.com https://github.com/openclaw/openclaw/commit/ca92597e1f9593236ad86810b66633144b69314d
    Patch