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📦 npm

GHSA-5847-rm3g-23mw

OpenClaw has hook auth rate limiter bypass via IPv4-mapped IPv6 client key variants

Published
Mar 3, 2026
Updated
Mar 4, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed

Blast Radius

1 pkg affected

Weekly download volume for affected packages — a proxy for how broadly this vulnerability is deployed.

openclawnpm
4.3Mdownloads / week

Description

Vulnerability

The hook authentication throttle keyed failed attempts by raw socket remoteAddress text.

IPv4 and IPv4-mapped IPv6 forms of the same client (for example 1.2.3.4 and ::ffff:1.2.3.4) were treated as different clients, allowing separate rate-limit buckets.

Impact

An attacker could split failed hook-auth attempts across both address forms and effectively double the brute-force budget from 20 to 40 attempts per 60-second window.

Affected Components

  • src/gateway/server-http.ts
  • src/gateway/auth-rate-limit.ts

Affected Packages / Versions

  • Package: openclaw (npm)
  • Vulnerable versions: <= 2026.2.21-2
  • Patched version (planned next release): 2026.2.22

Remediation

Centralize and reuse canonical client-IP normalization for auth rate-limiting, and use that canonical key for hook auth throttling.

Fix Commit(s)

  • 3284d2eb227e7b6536d543bcf5c3e320bc9d13c5

Release Process Note

patched_versions is pre-set to the planned next release (2026.2.22) so once npm release 2026.2.22 is published, this advisory can be published directly.

OpenClaw thanks @aether-ai-agent for reporting.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
📦npmopenclawall versions2026.2.22

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. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update openclaw to 2026.2.22 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-5847-rm3g-23mw 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.

  4. How O3 protects you

    O3 pinpoints whether GHSA-5847-rm3g-23mw is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-5847-rm3g-23mw. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

## Vulnerability The hook authentication throttle keyed failed attempts by raw socket `remoteAddress` text. IPv4 and IPv4-mapped IPv6 forms of the same client (for example `1.2.3.4` and `::ffff:1.2.3.4`) were treated as different clients, allowing separate rate-limit buckets. ## Impact An attacker could split failed hook-auth attempts across both address forms and effectively double the brute-force budget from 20 to 40 attempts per 60-second window. ## Affected Components - `src/gateway/server-http.ts` - `src/gateway/auth-rate-limit.ts` ## Affected Packages / Versions - Package: `openc
O3 Security · Impact-Aware SCA

Is GHSA-5847-rm3g-23mw in your dependencies?

O3 detects GHSA-5847-rm3g-23mw across npm dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.