High severity8.1NVD Advisory· Published Jun 16, 2026· Updated Jun 18, 2026
CVE-2026-53855
CVE-2026-53855
Description
OpenClaw before 2026.4.2 contains an inline-eval bypass vulnerability allowing authenticated operators to weaken strict allowlist checks via shell positional parameters. Attackers can combine allowlisted tools with shell positional arguments to place inline-eval content in shell carriers outside intended allowlist rules, enabling execution of unapproved shell-provided content.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
openclawnpm | < 2026.4.2 | 2026.4.2 |
Affected products
3Patches
Vulnerability mechanics
References
4- github.com/advisories/GHSA-5cj2-3jr2-5h77ghsaADVISORY
- github.com/openclaw/openclaw/security/advisories/GHSA-5cj2-3jr2-5h77nvdVendor AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2026-53855ghsaADVISORY
- www.vulncheck.com/advisories/openclaw-shell-positional-parameters-bypass-in-inline-eval-checksnvdThird Party AdvisoryWEB
News mentions
1- OpenClaw: 25 CVEs Disclosed in a Single Day — Allowlist Bypasses and Privilege Escalation DominateVypr Intelligence · Jun 16, 2026