CVE-2026-32899: Openclaw OpenClaw's Slack Reaction/pin Sender-policy Consistency Vulnerability
MODERATECVE-2026-32899 is a MODERATE (CVSS 4.3) openclaw's slack reaction/pin sender-policy consistency vulnerability (CWE-863: Incorrect Authorization) affecting Openclaw libraries in the npm ecosystem. The issue involves openclaw's slack reaction/pin sender-policy consistency issue in non-message ingress. Remediation is available by upgrading affected packages to version 2026.2.25.
CVE-2026-32899 at a Glance
Security Impact
CVSS: 4.3
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N).
How to Fix CVE-2026-32899
To remediate this vulnerability, upgrade all affected Openclaw dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
npm install openclaw@2026.2.25Run the following command in your project directory to verify that all resolved dependencies use the patched release:
npm ls openclawHow to Check if You Are Affected
To determine whether your Node.js application is affected by CVE-2026-32899, inspect your project dependencies using npm:
npm ls openclawAnalyze the terminal output to locate any version of Openclaw in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2026.2.25), your application is affected.
Note: The npm ls openclaw command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-863: Incorrect Authorization, where the product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. In Openclaw, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2026-32899 Affected Openclaw Versions
1 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
openclaw
|
npm |
< 2026.2.25
|
2026.2.25
|
References
Frequently Asked Questions
What is CVE-2026-32899?
Which Openclaw versions are affected?
What version fixes CVE-2026-32899?
Is openclaw affected?
What is the CVSS score of CVE-2026-32899?
What CWE is associated with CVE-2026-32899?
How can I check npm dependencies for CVE-2026-32899?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-rm2p-j3r7-4x4j",
"modified" : "2026-03-30T13:45:13Z",
"published" : "2026-03-03T19:50:26Z",
"aliases" : [ "CVE-2026-32899" ],
"summary" : "OpenClaw's Slack reaction/pin sender-policy consistency issue in non-message ingress",
"details" : "### Summary\nOpenClaw Slack monitor handled `reaction_*` and `pin_*` non-message events before applying sender-policy checks consistently.\n\nIn affected versions, these events could be added to system-event context even when sender policy would not normally allow them.\n\n### Affected Packages / Versions\n- Package: npm `openclaw`\n- Latest published affected version confirmed: `2026.2.24` (npm latest as of February 26, 2026)\n- Affected range: `<= 2026.2.24`\n- Patched version : `2026.2.25`\n\n### Technical Details\n- `reaction_*` and `pin_*` handlers now route through shared sender authorization (`authorizeSlackSystemEventSender`).\n- Enforced checks now include:\n - DM `dmPolicy` / `allowFrom`\n - channel `users` allowlist enforcement for non-DM channels\n - channel-level allow checks before system-event enqueue\n- Regression coverage added for DM allow/deny and channel-user allowlist deny paths.\n\n### Fix Commit(s)\n- `aedf62ac7e669a89c7b299201bf6537dc6b12e0e`\n- `75dfb71e4e8b7c2feba5a8ca662f92ea840e0147`\n\n### Impact\nLow-severity policy-consistency issue in Slack non-message event ingress.\nThis may introduce unexpected reaction/pin context signals from senders outside configured policy.\n\n### Release Process Note\n`patched_versions` is pre-set to planned release `2026.2.25`. Advisory published with npm release `2026.2.25`.\n\nOpenClaw thanks @tdjackey for reporting.",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"
}, {
"type" : "CVSS_V4",
"score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "npm",
"name" : "openclaw"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "2026.2.25"
} ]
} ],
"database_specific" : {
"last_known_affected_version_range" : "<= 2026.2.24"
}
} ],
"references" : [ {
"type" : "WEB",
"url" : "https://github.com/openclaw/openclaw/security/advisories/GHSA-rm2p-j3r7-4x4j"
}, {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-32899"
}, {
"type" : "WEB",
"url" : "https://github.com/openclaw/openclaw/commit/75dfb71e4e8b7c2feba5a8ca662f92ea840e0147"
}, {
"type" : "WEB",
"url" : "https://github.com/openclaw/openclaw/commit/aedf62ac7e669a89c7b299201bf6537dc6b12e0e"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/openclaw/openclaw"
}, {
"type" : "WEB",
"url" : "https://www.vulncheck.com/advisories/openclaw-sender-policy-bypass-in-slack-reaction-and-pin-event-handlers"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-863" ],
"severity" : "MODERATE",
"github_reviewed" : true,
"github_reviewed_at" : "2026-03-03T19:50:26Z",
"nvd_published_at" : null
}
}