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MEDIUM severity

OpenClaw has ACP CLI approval prompt ANSI escape sequence injectionGHSA-4hmj-39m8-jwc7

MEDIUMFix: openclaw/openclaw@464e2c1

GHSA-4hmj-39m8-jwc7 is a medium-severity (CVSS 4.3) CWE-150 vulnerability in openclaw. A fix is available for openclaw — see the affected versions and patch details below.

Also known asCVE-2026-35651
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 10, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for GHSA-4hmj-39m8-jwc7.

EPSS Exploitation Probability

via FIRST.org ↗
0.3%probability of exploitation in next 30 days
Lower Risk+0.01%
Lower risk than most CVEs19th percentile — riskier than 19% of all scored CVEsHighest risk
0.00%0.29%0.58%0.86%0.0%0.3%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected

How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.

133other npm packages depend on this — each one inherits the vulnerability until it's patched upstream
openclawnpm
2.9Mdownloads / week

Description

Summary

ACP CLI approval prompt ANSI escape sequence injection

Affected Packages / Versions

  • Package: openclaw
  • Affected versions: >= 2026.2.13, <= 2026.3.24
  • First patched version: 2026.3.25
  • Latest published npm version at verification time: 2026.3.24

Details

ACP tool titles could previously carry ANSI control sequences into approval prompts and permission logs, letting untrusted tool metadata spoof terminal output. Commit 464e2c10a5edceb380d815adb6ff56e1a4c50f60 sanitizes tool titles at the source and broadens ANSI stripping to full CSI sequences.

Verified vulnerable on tag v2026.3.24 and fixed on main by commit 464e2c10a5edceb380d815adb6ff56e1a4c50f60.

Fix Commit(s)

  • 464e2c10a5edceb380d815adb6ff56e1a4c50f60

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
📦npmopenclaw≥ 2026.2.13&&< 2026.3.282026.3.28npm install openclaw@2026.3.28

Affected Products

1 product · 1 configurations
Application
openclawopenclaw
≥ 2026.2.13 && < 2026.3.25
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for openclaw, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update openclaw to 2026.3.28 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-4hmj-39m8-jwc7 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

## Summary ACP CLI approval prompt ANSI escape sequence injection ## Affected Packages / Versions - Package: `openclaw` - Affected versions: `>= 2026.2.13, <= 2026.3.24` - First patched version: `2026.3.25` - Latest published npm version at verification time: `2026.3.24` ## Details ACP tool titles could previously carry ANSI control sequences into approval prompts and permission logs, letting untrusted tool metadata spoof terminal output. Commit `464e2c10a5edceb380d815adb6ff56e1a4c50f60` sanitizes tool titles at the source and broadens ANSI stripping to full CSI sequences. Verified vulne
O3 Security · Impact-Aware SCA

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OpenClaw has ACP CLI approval prompt ANSI escape…