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BREW-openclaw-cli-CVE-2026-34426 — OpenClaw: Windows-compatible env override keys could bypass system.run approval binding

Affected: Homebrew: openclaw-cli

## Summary

Before OpenClaw 2026.4.2, system-run approval binding normalized environment override keys differently from host execution. Windows-compatible keys could be omitted from the approval binding while still being injected at execution time.

## Impact

An approved command could run with attacker-chosen environment overrides that were not represented in the approval binding. This created an approval-integrity gap for affected host-exec flows.

## Affected Packages / Versions

- Package: `openclaw` (npm) - Affected versions: `<= 2026.4.1` - Patched versions: `>= 2026.4.2` - Latest published npm version: `2026.4.1`

## Fix Commit(s)

- `7eb094a00d80e9f6bf0e62f2c45d3b88ff67c04d` — align approval binding with execution-time env-key normalization

## Release Process Note

The fix is present on `main` and is staged for OpenClaw `2026.4.2`. Publish this advisory after the `2026.4.2` npm release is live.

Thanks @iskindar for reporting, and thanks @wsparks-vc for coordination.

EUVD-2026-280167

fkie_cve-2026-34426

OpenClaw versions prior to commit b57b680 contain an approval bypass vulnerability due to inconsistent environment variable normalization between approval and execution paths, allowing attackers to inject attacker-controlled environment variables into execution without approval system validation. Attackers can exploit differing normalization logic to discard non-portable keys during approval processing while accepting them at execution time, bypassing operator review and potentially influencing runtime behavior including execution of attacker-controlled binaries.

GHSA-h3x4-hc5v-v2gm — OpenClaw: Windows media loaders accepted remote-host file URLs before local path validation

Affected: npm: openclaw

## Summary Windows local-media handling accepted remote-host file URLs and UNC-style paths before local-path validation, so network-hosted file targets could be treated as local content.

## Affected Packages / Versions - Package: `openclaw` (npm) - Affected: < 2026.3.22 - Fixed: >= 2026.3.22 - Latest released tag checked: `v2026.3.23-2` (`630f1479c44f78484dfa21bb407cbe6f171dac87`) - Latest published npm version checked: `2026.3.23-2`

## Fix Commit(s) - `4fd7feb0fd4ec16c48ed983980dba79a09b3aaf5` - `93880717f1cd34feaa45e74e939b7a5256288901`

## Release Status The fix shipped in `v2026.3.22` and remains present in `v2026.3.23` and `v2026.3.23-2`.

## Code-Level Confirmation - src/infra/local-file-access.ts now rejects remote-host file: URLs and UNC/network paths as non-local input. - src/media/web-media.ts, src/media-understanding/attachments.normalize.ts, and src/agents/sandbox-paths.ts all route through the shared local-file guard.

OpenClaw thanks @RacerZ-fighting, @Fushuling for reporting.

WID-SEC-W-2026-0980 — OpenClaw: Mehrere Schwachstellen

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in OpenClaw ausnutzen, um Daten zu manipulieren, Sicherheitsmechanismen zu umgehen oder einen Denial-of-Service-Zustand zu erzeugen..