How severe is CVE-2026-43535?

No CVSS score has been assigned to CVE-2026-43535 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by CVE-2026-43535?

CVE-2026-43535 affects the following packages: openclaw (npm). Ecosystems affected: npm.

How do I fix CVE-2026-43535?

Update openclaw to 2026.4.14 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-43535 is resolved across your whole dependency graph.

How do I detect CVE-2026-43535 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-2026-43535 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.

Is CVE-2026-43535 actively exploited in the wild?

No public exploit code has been indexed for CVE-2026-43535 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-2026-43535?

CVE-2026-43535 has an EPSS (Exploit Prediction Scoring System) score of 0.2%, placing it in the 13th 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-2026-43535?

CVE-2026-43535 is classified as CWE-266 (CWE-266). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2026-43535 published, and has it been updated?

CVE-2026-43535 was published on May 5, 2026 and was last updated on October 28, 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-2026-43535 — openclaw

Fix: openclaw/openclaw@43d4be9

CVE-2026-43535 is a CWE-266 vulnerability in openclaw. A fix is available for openclaw — see the affected versions and patch details below.

OpenClaw < 2026.4.14 - Authorization Context Reuse in Collect-Mode Queue Batches

Also known asGHSA-jwrq-8g5x-5fhm

Published

May 5, 2026

Updated

Oct 28, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Nov 2, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

A successful exploit gives an attacker total control of the affected component, not partial access.
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-2026-43535.

EPSS Exploitation Probability

via FIRST.org ↗

0.2%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs13th percentile — riskier than 13% of all scored CVEsHighest risk

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

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.

132other npm packages depend on this — each one inherits the vulnerability until it's patched upstream

openclawnpm

2.6Mdownloads / week

Description

Summary

Collect-mode queue batches could reuse the last sender authorization context.

Affected Packages / Versions

Package: openclaw
Ecosystem: npm
Affected versions: < 2026.4.14
Patched versions: >= 2026.4.14

Impact

Collect-mode queued messages from different senders could be drained as one batch using the final sender's authorization context, allowing earlier messages to inherit a more privileged context.

Technical Details

The fix splits collect-mode batches by sender authorization context before dispatch, preserving each message's own trust state.

Fix

The issue was fixed in #66024. The first stable tag containing the fix is v2026.4.14, and [email protected] includes the fix.

Fix Commit(s)

43d4be902755c970b3d15608679761877718da69
PR: #66024

Release Process Note

Users should upgrade to openclaw 2026.4.14 or newer. The latest npm release, 2026.4.14, already includes the fix.

Credits

Thanks to @zsxsoft, with sponsorship from @KeenSecurityLab and @qclawer for reporting this issue.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
📦npm	`openclaw`	all versions	2026.4.14`npm install openclaw@2026.4.14`

Affected Products

1 product · 1 configurations

Application

openclawopenclaw

< 2026.4.14

range

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 2026.4.14 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-43535 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.

Frequently Asked Questions

## Summary Collect-mode queue batches could reuse the last sender authorization context. ## Affected Packages / Versions - Package: `openclaw` - Ecosystem: npm - Affected versions: `< 2026.4.14` - Patched versions: `>= 2026.4.14` ## Impact Collect-mode queued messages from different senders could be drained as one batch using the final sender's authorization context, allowing earlier messages to inherit a more privileged context. ## Technical Details The fix splits collect-mode batches by sender authorization context before dispatch, preserving each message's own trust state. ## Fix T

O3 Security · Impact-Aware SCA

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