CVE-2026-34111Public exploitNetwork attack vector

Unauthenticated OS command execution via unsanitized id

Published Jul 1, 2026 · Updated Jul 1, 2026

OS command injection in The Guardian Language System through commit e42c395 allows remote attackers to execute OS commands via a crafted id. The speechmac_text.php endpoint concatenates the id GET parameter into an exec() command string without quoting, validation, or sanitization. No authentication or user interaction is required; shell metacharacters run commands with the privileges of the PHP process, and output is not returned in the response.

CVSS severity9.3
Critical
EPSS probability0.93%
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 The Guardian Language System through commit e42c395 allows remote attackers to execute OS commands via a crafted id. The speechmac_text.php endpoint concatenates the id GET parameter into an exec() command string without quoting, validation, or sanitization. No authentication or user interaction is required; shell metacharacters run commands with the privileges of the PHP process, and output is not returned in the response.

The record

CVE
CVE-2026-34111
Published
Jul 1, 2026
Updated
Jul 1, 2026
Vendor
The Guardian
Product
Language System
Classifications
CWE-78, T1059.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 1, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 1, 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 <=e42c395ec4b03fe62973a669c9209a673838b8a4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Guardian · Language Systemversion=0 <=e42c395ec4b03fe62973a669c9209a673838b8a4

Published CVSS scores

9.3VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
9.8VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059.004Unix Shell

Public exploit references

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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