How severe is CVE-2026-32895?

No CVSS score has been assigned to CVE-2026-32895 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by CVE-2026-32895?

CVE-2026-32895 affects the following packages: openclaw (npm). Ecosystems affected: npm.

How do I fix CVE-2026-32895?

Update openclaw to 2026.2.26 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-32895 is resolved across your whole dependency graph.

How do I detect CVE-2026-32895 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-2026-32895 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-2026-32895?

O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2026-32895 can be triaged on real exposure rather than presence alone.

Is CVE-2026-32895 actively exploited in the wild?

No public exploit code has been indexed for CVE-2026-32895 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-2026-32895?

CVE-2026-32895 has an EPSS (Exploit Prediction Scoring System) score of 0.3%, placing it in the 21th 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-2026-32895?

CVE-2026-32895 is classified as CWE-863 (CWE-863). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2026-32895 published, and has it been updated?

CVE-2026-32895 was published on March 21, 2026 and was last updated on August 17, 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-2026-32895 — openclaw

Fix: openclaw/openclaw@3d30ba1

CVE-2026-32895 is a CWE-863 vulnerability in openclaw. A fix is available for openclaw — see the affected versions and patch details below.

OpenClaw < 2026.2.26 - Sender Authorization Bypass in Slack System Event Handlers

Also known asGHSA-v8cg-4474-49v8

Published

Mar 21, 2026

Updated

Aug 17, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Sep 24, 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-2026-32895.

EPSS Exploitation Probability

via FIRST.org ↗

0.3%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs21th percentile — riskier than 21% 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

2.5Mdownloads / week

Description

Summary

Slack member_* and message subtype system events (message_changed, message_deleted, thread_broadcast) were not consistently enforcing sender authorization before enqueueing system events.

Affected Packages / Versions

Package: openclaw (npm)
Latest published version: 2026.2.25
Affected range: <= 2026.2.25
Planned patched version: 2026.2.26 (pre-set for publish-readiness)

Technical Details

Slack system-event handlers in src/slack/monitor/events/members.ts and src/slack/monitor/events/messages.ts enqueued events after channel checks without shared sender authorization. Deployments relying on Slack DM allowlists (dmPolicy / allowFrom) or per-channel users allowlists could receive unauthorized system-event ingress from non-allowlisted senders.

The fix routes those handlers through authorizeAndResolveSlackSystemEventContext(...) and fails closed when message subtype sender identity cannot be resolved.

Fix Commit(s)

3d30ba18a2aba1e1b302e77ff33145c3b06c01c8

Release Process Note

patched_versions is pre-set to >= 2026.2.26 so once npm 2026.2.26 is published, this advisory can be published without further field edits.

Thanks @tdjackey for reporting.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
📦npm	`openclaw`	all versions	2026.2.26`npm install openclaw@2026.2.26`

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 2026.2.26 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-32895 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-2026-32895 can be triaged on real exposure rather than presence alone.

Tailored to CVE-2026-32895. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

### Summary Slack `member_*` and `message` subtype system events (`message_changed`, `message_deleted`, `thread_broadcast`) were not consistently enforcing sender authorization before enqueueing system events. ### Affected Packages / Versions - Package: `openclaw` (npm) - Latest published version: `2026.2.25` - Affected range: `<= 2026.2.25` - Planned patched version: `2026.2.26` (pre-set for publish-readiness) ### Technical Details Slack system-event handlers in `src/slack/monitor/events/members.ts` and `src/slack/monitor/events/messages.ts` enqueued events after channel checks without shar

O3 Security · Impact-Aware SCA

Is CVE-2026-32895 in your dependencies?

O3 Security finds CVE-2026-32895 across npm dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

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