Advisory details:
github_osv / GHSA-p4wh-cr8m-gm6c
| Advisory ID | github_osv/GHSA-p4wh-cr8m-gm6c |
| Aliases |
CVE-2026-22217
|
| Summary | OpenClaw: shell-env trusted-prefix fallback allowed attacker-controlled binary execution via $SHELL ### Summary `shell-env` fallback trusted prefix-based executable paths for `$SHELL`, allowing execution of attacker-controlled binaries in local/runtime-env influence scenarios. ### Details In affected versions, shell selection accepted either: 1. a shell listed in `/etc/shells`, or 2. any executable under hardcoded trusted prefixes (`/bin`, `/usr/bin`, `/usr/local/bin`, `/opt/homebrew/bin`, `/run/current-system/sw/bin`). The selected shell was then executed as a login shell (`-l -c 'env -0'`) for PATH/environment probing. On systems where a trusted-prefix directory is writable (for example common Homebrew layouts under `/opt/homebrew/bin`) and runtime `$SHELL` can be influenced, this enabled attacker-controlled binary execution in OpenClaw process context. The fix removes the trusted-prefix executable fallback and now trusts only shells explicitly registered in `/etc/shells`; otherwise it falls back to `/bin/sh`. ### Affected Packages / Versions - Package: `openclaw` (npm) - Affected versions: `>= 2026.2.22, <= 2026.2.22-2` - Latest published vulnerable version: `2026.2.22-2` - Patched versions (released): `>= 2026.2.23` ### Fix Commit(s) - `ff10fe8b91670044a6bb0cd85deb736a0ec8fb55` ### Release Process Note This advisory sets `patched_versions` to the released version (`2026.2.23`). This advisory now reflects released fix version `2026.2.23`. OpenClaw thanks @tdjackey for reporting. |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 5.5 |
| Risk | 2.8 |
| Affected and Fixed Packages | Package Details |
| Introduced and Fixed Package Commit Patches | Package Commit Patches Details |
| System | Score | Found at |
|---|---|---|
| cvssv3.1 | 6.1 | https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-p4wh-cr8m-gm6c/GHSA-p4wh-cr8m-gm6c.json |
| cvssv4 | 5.8 | https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-p4wh-cr8m-gm6c/GHSA-p4wh-cr8m-gm6c.json |
| generic_textual | MODERATE |
| Reference id | Reference type | URL |
|---|---|---|
| https://github.com/openclaw/openclaw | ||
| CVE-2026-22217 | https://nvd.nist.gov/vuln/detail/CVE-2026-22217 | |
| ff10fe8b91670044a6bb0cd85deb736a0ec8fb55 | Other | https://github.com/openclaw/openclaw/commit/ff10fe8b91670044a6bb0cd85deb736a0ec8fb55 |
| GHSA-p4wh-cr8m-gm6c | Advisory | https://github.com/openclaw/openclaw/security/advisories/GHSA-p4wh-cr8m-gm6c |
| openclaw-arbitrary-binary-execution-via-shell-environment-variable-trusted-prefix-fallback | Advisory | https://www.vulncheck.com/advisories/openclaw-arbitrary-binary-execution-via-shell-environment-variable-trusted-prefix-fallback |
No EPSS data available for this advisory.
| Patch URL | |
|---|---|
| There are no known patches. | |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
| Attack Vector (AV) | Attack Complexity (AC) | Attack Requirements (AT) | Privileges Required (PR) | User Interaction (UI) | Vulnerable System Impact Confidentiality (VC) | Vulnerable System Impact Integrity (VI) | Vulnerable System Impact Availability (VA) | Subsequent System Impact Confidentiality (SC) | Subsequent System Impact Integrity (SI) | Subsequent System Impact Availability (SA) |
|---|---|---|---|---|---|---|---|---|---|---|
network adjacent local physical |
low high |
none present |
none low high |
none passive active |
high low none |
high low none |
high low none |
high low none |
high low none |
high low none |
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-03-18T16:01:34Z/
Decision: Track
Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/22xxx/CVE-2026-22217.json
Source Advisory: vulnrichment/CVE-2026-22217
[{'Exploitation': 'none'},
{'Automatable': 'no'},
{'Technical Impact': 'partial'},
{'Mission Prevalence': 'minimal'},
{'Public Well-being Impact': 'material'},
{'Mission & Well-being': 'medium'}]