MCP, MCP server
haiserv
HAiServ is a custom Home Assistant integration for retrieving timetable data and Elternbrief (parent letters) from an IServ server.
Compatibility: Not stated.
Grade B
Minor issues only, no Medium or High. Worth a quick look at the findings below before installing.
Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.
NETWORK_NO_FIXED_HOST PERMISSION_SHELL_DECLARED SECRETS_ENV_READ
Why this grade
- NETWORK_NO_FIXED_HOST Low
Makes a network call whose host is not written as a fixed address.
cli.py, line 61
help="Week to fetch (default: current)", - PERMISSION_SHELL_DECLARED Note
Runs shell commands, and the manifest or description says so.
mcp_server.py, line 182
subprocess.run(command, check=True) - SECRETS_ENV_READ Note
Reads an environment variable whose name contains KEY, SECRET, TOKEN, PASSWORD or CREDENTIAL.
cli.py, line 138
if password := os.environ.get("ISERV_PASSWORD"):
Any High, or two or more Medium findings, give D. One Medium gives C. Low findings or a security Note give B. Each code names a finding behind the letter.
Grades are a hygiene check of the source at the commit shown, on the date checked, not a security audit or a guarantee. The free directory grades are automated. Before release, a PlugVet engineer reviews every paid report and any grade we hold back, including all F grades, against the source code and the evidence we quote.
What was checked
Plain notes from the hygiene checks.
Permissions
Note
requests shell access. The manifest names this permission.
PERMISSION_SHELL_DECLARED
mcp_server.py, line 182
subprocess.run(command, check=True)
Install and update
Pass
No install-time script found, and dependencies are pinned or absent.
Network
Concern
can reach a host that is not written as a fixed address.
NETWORK_NO_FIXED_HOST
cli.py, line 61
help="Week to fetch (default: current)",
CHANGELOG.md, line 7
- Local timetable cache: a failed fetch (for example HTTP 403 after a school
Secrets
Note
reads an environment variable.
SECRETS_ENV_READ
cli.py, line 138
if password := os.environ.get("ISERV_PASSWORD"):
haiserv_mcp.py, line 32
password = os.environ.get("ISERV_PASSWORD", "").strip()
Agent instructions
Pass
No instruction to ignore earlier instructions or to hide a step.
Obfuscation
Pass
No encoded or minified payload found.
Licence
Pass
A licence file is present (LICENSE).
Maintainer activity
Pass
The latest commit is within the last 365 days.
Note
Hygiene check of commit fe0fd2ef3e32. requests shell access. The manifest names this permission. can reach a host that is not written as a fixed address. reads an environment variable.
Date and source
Date checked:
github.com
Commit graded: fe0fd2ef3e32e1b151cab15e71f2cb29fa24dc81
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