CVE-2026-27004

Cross-session transcript disclosure via unscoped session tools

Published Feb 19, 2026 · Updated Feb 19, 2026

Improper session scoping in OpenClaw before 2026.2.15 allows local users to read peer transcripts through session tools. The sessions_list, sessions_history, and sessions_send handlers accepted target session keys without a visibility policy, and Telegram monitor startup ignored an account-level webhookSecret unless an explicit override existed. Transcript exposure requires a shared-agent, multi-user deployment with mutually untrusted peers; the separate webhook condition requires Telegram webhook mode and leaves the configured secret unapplied.

CVSS severity6.9
Medium
EPSS probability0.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper session scoping in OpenClaw before 2026.2.15 allows local users to read peer transcripts through session tools. The sessions_list, sessions_history, and sessions_send handlers accepted target session keys without a visibility policy, and Telegram monitor startup ignored an account-level webhookSecret unless an explicit override existed. Transcript exposure requires a shared-agent, multi-user deployment with mutually untrusted peers; the separate webhook condition requires Telegram webhook mode and leaves the configured secret unapplied.

The record

CVE
CVE-2026-27004
Published
Feb 19, 2026
Updated
Feb 19, 2026
Vendor
OpenClaw Foundation
Product
OpenClaw
Classifications
CWE-346, CWE-209, T1213.005
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Feb 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 19, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 2026.2.15

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

OpenClaw Foundation · OpenClawversion=< 2026.2.15

Published CVSS scores

6.9GitHub, Inc.CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-346Origin Validation Error
CWE-209Generation of Error Message Containing Sensitive Information
T1213.005Data from Information Repositories: Messaging Applications

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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