Security readout for executives and security teams
Plain-English summary
OpenClaw before 2026.2.26 may accept certain Slack system events from senders who are not allowed. This can let a low-privileged attacker get events queued despite Slack DM or channel allowlists. Business impact is limited but real: unauthorized events may influence automation that relies on OpenClaw’s queue.
Executive priority
Treat as a near-term operational fix, not an emergency. Prioritize environments where Slack events trigger sensitive workflows, approvals, notifications, or data movement.
Technical view
The flaw is a CWE-863 authorization failure in member and message subtype system event handlers. OpenClaw does not consistently enforce sender authorization for message_changed, message_deleted, and thread_broadcast events, allowing non-allowlisted Slack senders to enqueue events. CVSS 3.1 is 5.4 with low attack complexity and required low privileges.
Likely exposure
Exposure is limited to organizations running OpenClaw versions earlier than 2026.2.26 with Slack DM allowlists or per-channel user allowlists relied on for access control.
Exploitation context
The source bundle does not show CISA KEV listing or confirmed active exploitation. The issue is remotely reachable in the CVSS model, requires low privileges, and does not require user interaction.
Researcher notes
Evidence supports an authorization bypass in Slack system event handling, but not public exploitation. Validate by reviewing sender authorization enforcement around the named event subtypes and comparing deployed code with the patch.
Mitigation direction
- Upgrade OpenClaw to version 2026.2.26 or later.
- Review the GitHub advisory and patch commit for vendor-specific details.
- Audit Slack allowlist assumptions around OpenClaw event processing.
- Check queued events for unexpected senders in affected deployments.
Validation and detection
- Inventory OpenClaw versions and flag anything earlier than 2026.2.26.
- Confirm Slack integrations use DM or per-channel allowlists where exposure matters.
- Review event handler behavior for sender authorization on system event subtypes.
- Check logs or queues for non-allowlisted senders in affected event types.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-863: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupPrivilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-32895 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
2 official scoresWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N2.82.5VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N——VulnCheckVulnerability scoring details
Base CVSS 4.0 score
5.3MediumVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Base CVSS 3.1 score
5.4MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- GitHub Security Advisory (GHSA-v8cg-4474-49v8)CVE reference, VulnCheck · vendor-advisory
- Patch CommitCVE reference, VulnCheck · patch
- VulnCheck Advisory: OpenClaw < 2026.2.26 - Sender Authorization Bypass in Slack System Event HandlersCVE reference, VulnCheck · third-party-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Incorrect Authorization
Incorrect Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.