How severe is CVE-2026-32921?

No CVSS score has been assigned to CVE-2026-32921 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by CVE-2026-32921?

CVE-2026-32921 affects the following packages: openclaw (npm). Ecosystems affected: npm.

How do I fix CVE-2026-32921?

Update openclaw to 2026.3.8 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-32921 is resolved across your whole dependency graph.

How do I detect CVE-2026-32921 in my npm dependencies?

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.

How do I mitigate CVE-2026-32921 if there is no patch (or I can't update yet)?

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.

How does O3 Security protect against CVE-2026-32921?

O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2026-32921 can be triaged on real exposure rather than presence alone.

Is CVE-2026-32921 actively exploited in the wild?

No public exploit code has been indexed for CVE-2026-32921 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2026-32921?

CVE-2026-32921 has an EPSS (Exploit Prediction Scoring System) score of 0.3%, placing it in the 24th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2026-32921?

CVE-2026-32921 is classified as CWE-367 (CWE-367). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2026-32921 published, and has it been updated?

CVE-2026-32921 was published on March 31, 2026 and was last updated on August 12, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

📦 npm

Not in CISA KEV

CVE-2026-32921 — openclaw

Fix: openclaw/openclaw@c76d292

CVE-2026-32921 is a CWE-367 vulnerability in openclaw. A fix is available for openclaw — see the affected versions and patch details below.

OpenClaw < 2026.3.8 - Script Content Modification via Mutable Operand Binding in system.run

Also known asGHSA-8g75-q649-6pv6

Published

Mar 31, 2026

Updated

Aug 12, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Sep 25, 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 CVE-2026-32921.

EPSS Exploitation Probability

via FIRST.org ↗

0.3%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs24th percentile — riskier than 24% of all scored CVEsHighest risk

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

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

2.8Mdownloads / week

Description

OpenClaw's system.run approval flow did not bind mutable interpreter-style script operands across approval and execution.

A caller could obtain approval for an execution such as sh ./script.sh, rewrite the approved script before execution, and then execute different content under the previously approved command shape. The approved argv values remained the same, but the mutable script operand content could drift after approval.

Latest published npm version verified vulnerable: 2026.3.7

The initial March 7, 2026 fix in c76d29208bf6a7f058d2cf582519d28069e42240 added approval binding for shell scripts and a narrow interpreter set, but follow-up maintainer review on March 8, 2026 found that bun and deno script operands still did not produce mutableFileOperand snapshots.

A complete fix shipped on March 9, 2026 in cf3a479bd1204f62eef7dd82b4aa328749ae6c91, which binds approved bun and deno run script operands to on-disk file snapshots and denies post-approval script drift before execution.

Affected Packages / Versions

Package: openclaw (npm)
Affected versions: <= 2026.3.7
Patched version: 2026.3.8

Fix Commit(s)

c76d29208bf6a7f058d2cf582519d28069e42240
cf3a479bd1204f62eef7dd82b4aa328749ae6c91

Release Verification

npm 2026.3.7 remains vulnerable.
npm 2026.3.8 contains the completed fix.

Thanks @tdjackey for reporting.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
📦npm	`openclaw`	all versions	2026.3.8`npm install openclaw@2026.3.8`

Detection & mitigation playbook

Open-source dependency

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.
Fix
Update openclaw to 2026.3.8 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-32921 is resolved across your whole dependency graph.
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.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2026-32921 can be triaged on real exposure rather than presence alone.

Tailored to CVE-2026-32921. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

OpenClaw's `system.run` approval flow did not bind mutable interpreter-style script operands across approval and execution. A caller could obtain approval for an execution such as `sh ./script.sh`, rewrite the approved script before execution, and then execute different content under the previously approved command shape. The approved `argv` values remained the same, but the mutable script operand content could drift after approval. Latest published npm version verified vulnerable: `2026.3.7` The initial March 7, 2026 fix in `c76d29208bf6a7f058d2cf582519d28069e42240` added approval binding

O3 Security · Impact-Aware SCA

Is CVE-2026-32921 in your dependencies?

O3 Security finds CVE-2026-32921 across npm dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

Scan my dependencies How O3 SCA works