CVE-2026-54594
Description
A flaw was found in OmniBlocks. A remote attacker could exploit a vulnerability in the .github/workflows/disc.yml workflow, which fails to prevent duplicate discussion creation for off-topic issues. By repeatedly editing an off-topic issue's description before conversion, an attacker can cause multiple discussions to be generated for the same issue. This leads to discussion spam and increased moderation effort, effectively causing a denial of service by resource exhaustion.
Statement
This vulnerability is evaluated with a Moderate impact because an authenticated user can trigger discussion spam and increase moderation overhead, while posing no risk to host confidentiality or core system availability. OmniBlocks and its repository automation scripts are not distributed, embedded, or supported within Red Hat products. Consequently, Red Hat environments and offerings are unaffected by this issue.
Understanding the Weakness (CWE)
Integrity,Other
Technical Impact: Alter Execution Logic; Unexpected State
The attacker can gain access to otherwise unauthorized resources.
Integrity,Other
Technical Impact: Modify Application Data; Modify Files or Directories; Modify Memory; Other
Race conditions such as this kind may be employed to gain read or write access to resources which are not normally readable or writable by the user in question.
Integrity,Other
Technical Impact: Other
The resource in question, or other resources (through the corrupted one), may be changed in undesirable ways by a malicious user.
Non-Repudiation
Technical Impact: Hide Activities
If a file or other resource is written in this method, as opposed to in a valid way, logging of the activity may not occur.
Non-Repudiation,Other
Technical Impact: Other
In some cases it may be possible to delete files a malicious user might not otherwise have access to, such as log files.
Other
Technical Impact: Unexpected State
The product may perform invalid actions when the resource is in an unexpected state.
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