CVE-2026-42438

HIGH

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

Title source: cna
STIX 2.1

Description

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.

References (3)

Core 3
Core References
Vendor Advisory vendor-advisory
GitHub Security Advisory (GHSA-jhpv-5j76-m56h)
https://github.com/openclaw/openclaw/security/advisories/GHSA-jhpv-5j76-m56h
Third Party Advisory third-party-advisory
VulnCheck Advisory: OpenClaw 2026.4.9 < 2026.4.10 - Sender Policy Bypass in Host Media Attachment Reads
https://www.vulncheck.com/advisories/openclaw-sender-policy-bypass-in-host-media-attachment-reads

Scores

CVSS v3 7.7
EPSS 0.0003
EPSS Percentile 8.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-863
Status published
Products (4)
npm/openclaw 2026.4.9 - 2026.4.10npm
openclaw/openclaw 2026.4.9
OpenClaw/OpenClaw 2026.4.10
OpenClaw/OpenClaw 2026.4.9 - 2026.4.10
Published May 05, 2026
Tracked Since May 05, 2026