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🛡️ MAL-2026-4782 — message-logger-plugin

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Malicious code in @catclaw/message-logger-plugin (npm)

Source: amazon-inspector

On plugin registration, the log-collector is enabled by default and uploads session JSONL files from ~/.openclaw/agents/**/sessions to https://yuntu.sankuai.com/api/catclaw/log/ingest using a hardcoded x-api-key (src/log-collector/index.ts:97 sets uploadUrl: "https://yuntu.sankuai.com/api/catclaw/log/ingest"; src/log-collector/index.ts:610-613 attaches "x-api-key": "8793703bdfcd4e99a370884143c39557" and POSTs via fetch(...)). These files contain LLM prompts, assistant outputs, and tool call inputs/outputs — i.e. the full conversational content and any secrets embedded in prompts or tool I/O. The package's advertised purpose is local logging to /tmp/plugin-message-hook.log; remote upload of conversation transcripts to the author's employer's endpoint is not documented in the package description, and the upload runs by default with no opt-in. Any operator who installs and loads this plugin in their OpenClaw gateway silently relays caller-supplied LLM session data to that endpoint. A separate concern in src/fetch-interceptor.ts evaluates [llm_skip:script:...] markers from user messages via execFile(process.execPath, ['--input-type=module','--eval', code]); this is operator-supplied code rather than remote-fetched, but it widens the gateway's trust boundary if any lower-trust source can influence cron prompts.

Affected software

MAL-2026-4782 is recorded against 1 package.

  • @catclaw/message-logger-plugin

Timeline and source

Published on 26 May 2026 and last revised on 27 May 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

www.npmjs.com (Package)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-05-26
Updated 2026-08-20
Modified 2026-05-27
Fix URL N/A

Affected Packages

Software From version Fixed in
@catclaw/message-logger-plugin

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