CVE-2026-54594: OmniBlocks: Spamming in Discussions tab possible via disc.yml
OmniBlocks is a monorepo for the OmniBlocks project. Prior to the June 6, 2026 workflow remediation, .github/workflows/disc.yml runs for the issues opened event and the issues edited event and invokes the createDiscussion mutation whenever an issue is classified as off-topic, without recording that the issue was already converted or otherwise suppressing duplicate runs. A user who creates one off-topic issue and repeatedly edits its description before conversion completes can therefore cause multiple discussions to be created for the same issue, producing discussion spam and additional moderation work. This issue is fixed with commit 627e0f0a16a7d74b09128106b57dd7e85d2545df.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
OmniBlocks monorepo (.github/workflows/disc.yml)to a version that resolves this vulnerability.Patch 627e0f0a16a7d74b09128106b57dd7e85d2545df
Event History
Frequently Asked Questions
What capabilities does an attacker need to trigger the issue?
The attacker needs to be able to create an off-topic issue and repeatedly edit its description before the conversion process completes. Each qualifying opened or edited event can invoke the discussion-creation workflow.
What should maintainers do to remediate this if they use the affected workflow?
Apply the remediation in commit 627e0f0a16a7d74b09128106b57dd7e85d2545df. The vulnerable behavior existed before the June 6, 2026 workflow remediation.