CVE-2026-58502Public exploitNetwork attack vector

Command execution via shell-expanded issue titles

Published Sep 15, 2026 · Updated Sep 15, 2026

Command injection in gouef githubtoplanguages before 1.1.4 allows remote authenticated users to execute shell commands via issue titles. The .github/workflows/discord-issue.yml workflow expands github.event.issue.title inside a Bash assignment before shell parsing, so command-substitution syntax executes on the Actions runner. An attacker needs permission to open an issue; successful exploitation can spoof Discord bot notifications and expose workflow secrets or environment data allowed by repository permissions.

CVSS severity7.1
High
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in gouef githubtoplanguages before 1.1.4 allows remote authenticated users to execute shell commands via issue titles. The .github/workflows/discord-issue.yml workflow expands github.event.issue.title inside a Bash assignment before shell parsing, so command-substitution syntax executes on the Actions runner. An attacker needs permission to open an issue; successful exploitation can spoof Discord bot notifications and expose workflow secrets or environment data allowed by repository permissions.

The record

CVE
CVE-2026-58502
Published
Sep 15, 2026
Updated
Sep 15, 2026
Vendor
gouef
Product
githubtoplanguages
Classifications
CWE-78, T1059.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 15, 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=< 6bf9c3a9cb66c937b9047ca266b3d02f2bb11027

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

gouef · githubtoplanguagesversion=< 6bf9c3a9cb66c937b9047ca266b3d02f2bb11027

Published CVSS scores

7.1GitHubCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/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.

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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
Privilegesauthenticated
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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