CVE-2026-42438CWE-863

OpenClaw 2026.4.9 < 2026.4.10 - Sender Policy Bypass in Host Media Attachment Reads

Medium · published May 5, 2026

CVSS v4.0
4.9
EPSS
0%
Percentile
34.9
In the wild
Unconfirmed
What it is

OpenClaw versions 2026.4.9 before 2026.4.10 contain a sender policy bypass vulnerability in the outbound host-media attachment read helper that allows unauthorized local file disclosure. Attackers with denied read access via toolsBySender or group policy can trigger host-media attachment loading to bypass sender and group-scoped authorization boundaries and retrieve readable local files through the outbound media path.

The record
Technical detail
CVSS v4.0
4.9 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N
EPSS
0.00416 · 34.9th percentile
Weakness
CWE-863 · Incorrect Authorization
Published
2026-05-05T11:24Z
EPSS history
Timeline
  • 05 MAY 11:24Z
    OpenClaw 2026.4.9 < 2026.4.10 - Sender Policy Bypass in Host Media Attachment Reads
    cvelistv5