hermes-agent/tools/environments
Eugeniusz Gilewski a1e6ea7d71 fix(tools): keep shell snapshots owner-only
BaseEnvironment writes shell snapshots and cwd metadata through the process
umask. With a common 022 umask, snapshot files containing exported environment
state landed at mode 0644 even though they can include env-carried credentials
from the parent process.

Set umask 077 only around Hermes metadata writes: the initial snapshot
bootstrap and the post-command snapshot/cwd refresh. User commands still run
under the caller's original umask, while Hermes-owned snapshot and cwd files
are created owner-only.

This intentionally does not copy the source PR's global orphan sweep; deleting
all matching /tmp snapshot files could interfere with concurrent Hermes
processes. The security-critical local disclosure fix is the file mode clamp.

This is salvageable because the source report still identifies a concrete
credential-disclosure path, but the safe subset is smaller than the original
proposal: clamp only the Hermes-owned snapshot writes and leave process-wide
cleanup, user command umask, and concurrent sessions alone.

Salvages source PR: https://github.com/NousResearch/hermes-agent/pull/20056
Related issue: https://github.com/NousResearch/hermes-agent/issues/48441

Co-authored-by: Andrew Homeyer <andrew@hndl.app>
2026-07-07 05:22:42 -07:00
..
__init__.py remove Vercel AI Gateway and Vercel Sandbox (#33067) 2026-05-27 00:43:32 -07:00
base.py fix(tools): keep shell snapshots owner-only 2026-07-07 05:22:42 -07:00
daytona.py fix(daytona): quote single-upload mkdir parent path (#54440) 2026-06-28 14:33:03 -07:00
docker.py fix(docker): widen docker_network to file/code-exec paths + guard container reuse 2026-07-05 14:41:51 -07:00
file_sync.py fix(file-sync): re-deliver deferred Ctrl+C via raise_signal, not os.kill (Windows hard-kill) 2026-07-06 01:55:58 -07:00
local.py fix(terminal): also set MSYS2_ARG_CONV_EXCL for MSYS2/Cygwin bash fallback 2026-07-02 11:48:03 -07:00
managed_modal.py feat(environments): unified spawn-per-call execution layer 2026-04-08 17:23:15 -07:00
modal.py fix(async): close unscheduled coroutines in all threadsafe bridges (#26584) 2026-05-15 14:00:01 -07:00
modal_utils.py fix(tools): don't compound-rewrite spawn_via_env background wrappers 2026-06-01 00:05:10 +05:30
singularity.py fix: prevent TUI gateway stdin EOF crash across all TUI-context subprocess calls 2026-06-08 22:46:57 -07:00
ssh.py fix(tui): preserve remote cwd for ssh sessions 2026-06-06 18:40:43 -07:00