Skip to main content

OpenClaw CVE-2026-100546

| EUVDEUVD-2026-87504 MEDIUM
Race Condition (CWE-362)
2026-09-26 VulnCheck GHSA-hwqm-37j4-xmcr
6.1
CVSS 4.0 · Vendor: VulnCheck
View

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Join affected Discord voice session as non-owner
  2. Delivery
    Speak concurrently with owner control transcript
  3. Exploit
    Win async control-check race
  4. Execution
    Utterance inherits owner status at agent boundary
  5. Impact
    Owner-sensitive command applied to attacker

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V15 - Secure Coding and Architecture Concurrency control, locking
MITRE ATT&CK

1 technique across 1 tactic: Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Requires a Discord agent-proxy voice session running OpenClaw 2026.7.2-2026.9.1 with the realtime voice control path enabled AND an agent that distinguishes owner vs non-owner senders. The attacker must be an admitted non-owner participant (PR:L) in that live voice session and must produce concurrent control-classified transcripts that win the timing race against a legitimate owner's context (AC:H, AT:P - non-deterministic). Limiting factors: exploitation is gated on precise concurrent transcript timing the attacker cannot reliably force, on the specific realtime control path being in use, and on the owner-sensitive tools/commands actually exposed to the agent. The documented workaround - disabling Discord realtime voice for owner/non-owner-distinguishing agents - fully mitigates it.

Impact

Real-world risk is LOW-to-MODERATE despite the 6.1 CVSS 4.0 score. The vendor vector (CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N) is internally consistent with a hard-to-win race: AC:H and AT:P (Present attack requirement) reflect that exploitation depends on precise concurrent transcript timing that the attacker cannot deterministically control, and PR:L means the attacker must already be an admitted non-owner participant in an active Discord agent-proxy voice session. There is no EPSS score, no CISA KEV listing, and no public exploit - exploitation status is 'no public exploit identified at time of analysis.' The vendor's VI:H (high integrity impact) appears generous: the advisory itself states impact is bounded by the tools and commands available to the affected agent, and success is non-deterministic, so a blanket high-integrity rating overstates typical outcomes. No conflicting signals on attack vector (network-facing Discord path is genuine), but the race-dependent, config-gated nature makes this targeted/opportunistic at best rather than reliably exploitable. This is a legitimate authorization-confusion bug worth patching, not an urgent widespread threat.

Exploit ScenarioDerived

A non-owner participant joins a Discord agent-proxy voice session that uses the affected realtime control path and speaks utterances timed to coincide with an owner's control-classified transcript. If the race is won, the attacker's utterance crosses the downstream agent boundary tagged with the owner's status, causing owner-only agent behavior to execute on the non-owner's command. No public proof-of-concept exists, and success is non-deterministic, depending on concurrent transcript timing.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.2% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAIv1 – Sep 26, 2026

OpenClaw npm package versions 2026.7.2 through 2026.9.1 contain a race condition in the Discord realtime voice transcript path that can cause an utterance from a non-owner participant to be processed at the downstream agent boundary as if it came from the session owner. The flaw is exploitable only in Discord agent-proxy voice sessions that use the realtime voice control path with an agent configured to distinguish owner from non-owner senders, and an admitted non-owner participant must produce concurrent control-classified transcripts that win a non-deterministic timing race against a legitimate owner's context. No public exploit identified at time of analysis; the vendor has fixed the issue in 2026.9.2, and while the CVSS 4.0 base score is 6.1 (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N per independent assessment), real-world risk is LOW-to-MODERATE because exploitation is gated by precise timing, the specific realtime control path, and which owner-sensitive tools are actually exposed.

RemediationAI

Upgrade the openclaw npm package to 2026.9.2 or later, which resolves the race condition in the Discord realtime voice transcript path; the vendor confirms a patch is available and the fix is referenced in the advisory at https://github.com/openclaw/openclaw/security/advisories/GHSA-5x6q-wg56-rxg8 (see also https://www.vulncheck.com/advisories/openclaw-2026.7.2-before-2026.9.2-authentication-bypass-via-voice-transcript). If upgrading cannot be done immediately, apply the documented workaround of disabling Discord realtime voice for any agent that distinguishes owner from non-owner senders - this fully mitigates the issue at the cost of losing realtime voice interaction for those agents, and is therefore a safe interim control for owner-sensitive deployments. Because exploitation depends on the realtime control path being enabled and on owner-sensitive tools or commands actually being exposed to the agent, additionally restricting or removing owner-only commands and capabilities from voice-facing agents reduces residual exposure, and treating voice-session identity assertions as untrusted (requiring an out-of-band owner confirmation for sensitive actions) is a reasonable compensating control. There are no other upstream or registry-based fixes identified in the supplied data.

Affected VersionsENISA

OpenClaw 2026.7.2 <2026.9.2

Affected Packages

euvd openclaw fix: 2026.9.2

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

The vulnerability is a classic race condition (CWE-362) arising from an asynchronous control check performed while concurrent Discord realtime voice transcripts are being classified. When two control-classified transcripts are processed simultaneously, the speaker context belonging to one participant (typically the owner) can be consumed by another participant's transcript, so a non-owner utterance inherits the owner's identity before reaching the downstream agent boundary. Security-relevant identity assertions are made at a different point in time than the context they depend on, producing a time-of-check/time-of-use style mismatch. The underlying technology is the OpenClaw Node.js agent framework's Discord agent-proxy realtime voice pipeline, distributed as the npm package openclaw; the affected CPE is cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:*:*:* and EUVD tracks the range as OpenClaw 2026.7.2 <2026.9.2 (EUVD-2026-87504, reported by VulnCheck). The CVSS 4.0 vector (CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N) reflects network reachability, high attack complexity, a present attack-requirements component, low privileges (an admitted participant), low confidentiality and availability impact, and high integrity impact - consistent with an attacker influencing which principal the agent believes is speaking rather than directly disclosing or destroying data.

Know when Openclaw gets its next vulnerability

  • Watch products and get an email when something new is published
  • Check this CVE against your own stack and servers
  • Exploit and PoC references, threat intelligence from 22 sources

No credit card · 7-day full trial

Severity by source

Vendor (VulnCheck) PRIMARY 6.1 MEDIUM
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N
vuln.today AI 4.2 MEDIUM

Network-reachable Discord session but PR:L (admitted participant) and AC:H (must win a non-deterministic timing race); impact is bounded by agent tools, so C:L/I:L rather than high.

3.1 AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
4.0 AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (VulnCheck).

CVSS VectorVendor: VulnCheck

Attack Vector
Network
Attack Complexity
High
Attack Requirements
Present
Privileges Required
Low
User Interaction
None
Vulnerable system: Confidentiality
Low
Vulnerable system: Integrity
High
Vulnerable system: Availability
Low
Subsequent system: Confidentiality
None
Subsequent system: Integrity
None
Subsequent system: Availability
None

Lifecycle Timeline

1
Patch available
Sep 26, 2026 - 03:01 EUVD

DescriptionCVE.org

OpenClaw (npm package openclaw) versions >= 2026.7.2 and < 2026.9.2 contain a race condition in the Discord realtime voice transcript path. Concurrent control-classified voice transcripts could consume speaker context belonging to another participant after an asynchronous control check, causing a transcript to inherit another speaker's owner status. In Discord agent-proxy voice sessions using the affected realtime control path, an utterance from a non-owner participant could reach the downstream agent boundary marked as owner, so owner-sensitive behavior is applied to the wrong speaker. Exploitation depends on concurrent transcript timing and on the tools and commands available to the affected agent. The issue is fixed in 2026.9.2; as a workaround, disable Discord realtime voice for agents that distinguish owner and non-owner senders.

Threat Intelligence Overview

EPSS Score
0.2%
Top 93% exploitable
Prevalence
Low
niche open-source Node.js agent framework, limited production footprint
Data Quality
6 sources
Confidence: High

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.2%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
No
Human Impact· derived
Medium
Technical Impact
Partial

Priority Score

30
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +30
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Race conditions occur when multiple concurrent requests exploit the brief time gap between checking a condition and acting upon it (TOCTOU - Time of Check, Time of Use).

CVE-2026-28446 CRITICAL POC
9.4 Mar 05

Auth bypass in OpenClaw voice-call extension before 2026.2.1. EPSS 0.68%. PoC and patch available.

CVE-2026-33579 CRITICAL POC
9.4 Mar 31

Privilege escalation in OpenClaw (pre-2026.3.28) allows unauthenticated remote attackers to gain administrative access b

CVE-2026-32042 HIGH POC
8.8 Mar 21

OpenClaw versions 2026.2.22 through 2026.2.24 contain a privilege escalation vulnerability that allows authenticated att

CVE-2026-32051 HIGH POC
8.8 Mar 21

An authorization mismatch vulnerability in OpenClaw versions prior to 2026.3.1 allows authenticated users with operator.

CVE-2026-25253 HIGH POC
8.8 Feb 01

OpenClaw versions prior to 2026.1.29 automatically establish WebSocket connections to attacker-controlled gateway URLs e

CVE-2026-32846 HIGH POC
8.7 Mar 26

Path traversal in OpenClaw through version 2026.3.23 enables unauthenticated remote attackers to read arbitrary files in

CVE-2026-100530 HIGH POC
8.5 Sep 26

Directory-context bypass in OpenClaw before 2026.8.1 allows authenticated attackers with user interaction to reuse an 'a

CVE-2026-32064 HIGH POC
8.5 Mar 21

Unauthenticated access to the noVNC observer interface in OpenClaw's Docker sandbox browser allows anyone who can reach

CVE-2026-32055 HIGH POC
7.6 Mar 21

OpenClaw versions before 2026.2.26 allow authenticated attackers to write arbitrary files outside the workspace director

CVE-2026-32056 HIGH POC
7.5 Mar 21

OpenClaw versions prior to 2026.2.22 contain a shell environment variable injection vulnerability in the system.run func

CVE-2026-32049 HIGH POC
7.5 Mar 21

OpenClaw versions prior to 2026.2.22 contain a resource exhaustion vulnerability where the application fails to consiste

CVE-2026-32048 HIGH POC
7.5 Mar 21

OpenClaw versions prior to 2026.3.1 contain a sandbox escape vulnerability that allows authenticated attackers with low

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy