CVE-2026-58502

githubtoplanguages generates a user's top GitHub languages as an SVG. The .github/workflows/discord-issue.yml workflow runs when an issue is opened or closed and interpolates github.event.issue.title directly into the Bash assignment for ISSUE_TITLE before shell parsing. An issue title containing shell command-substitution syntax can therefore execute commands on the GitHub Actions runner before the title is included in the Discord notification sent through DISCORD_WEBHOOK. Successful exploitation can manipulate or spoof trusted bot notifications and may expose the Discord webhook secret or other workflow environment data, depending on repository permissions. This issue is fixed by commit 6bf9c3a9cb66c937b9047ca266b3d02f2bb11027.

CVSS

No CVSS.

References

Link	Resource
https://github.com/gouef/githubtoplanguages/commit/6bf9c3a9cb66c937b9047ca266b3d02f2bb11027
https://github.com/gouef/githubtoplanguages/security/advisories/GHSA-c3xh-98xp-6qhf

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-15 18:17

Updated : 2026-09-15 18:17

NVD link : CVE-2026-58502

Mitre link : CVE-2026-58502

CVE.ORG link : CVE-2026-58502

JSON object : View

Products Affected

No product.

CWE

CWE-78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

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