CVE-2026-9279

Arbitrary command execution via shell-enabled IPC arguments

Published Jun 9, 2026 · Updated Jun 9, 2026

OS command injection in Logseq 0.10.15 and earlier allows local users with renderer JavaScript execution to run host shell commands. The IPC handler concatenates an allowlisted command with an untrusted argument string and invokes child_process.spawn with shell execution enabled, so shell metacharacters escape the command-name restriction. Reachability requires JavaScript execution in the renderer, such as through cross-site scripting or a malicious plugin, and successful commands run with the privileges of the Logseq process.

CVSS severity8.7
High
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Logseq 0.10.15 and earlier allows local users with renderer JavaScript execution to run host shell commands. The IPC handler concatenates an allowlisted command with an untrusted argument string and invokes child_process.spawn with shell execution enabled, so shell metacharacters escape the command-name restriction. Reachability requires JavaScript execution in the renderer, such as through cross-site scripting or a malicious plugin, and successful commands run with the privileges of the Logseq process.

The record

CVE
CVE-2026-9279
Published
Jun 9, 2026
Updated
Jun 9, 2026
Vendor
Logseq
Product
Logseq
Classifications
CWE-78, T1059
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 9, 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=0 <=0.10.15

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Logseq · Logseqversion=0 <=0.10.15

Published CVSS scores

8.7CERT.PLCVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA: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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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