GHSA-6pr9-rp53-2pmc: vLLM: OOM Denial of Service via Audio Decompression Bomb
Summary
vLLM's audio transcription endpoint checks the size of compressed audio files but not the decoded output, allowing a decompression bomb attack. A 25MB OPUS file can expand to about 14.9GB of PCM audio (raw, uncompressed audio data) in memory, letting an attacker crash the server by exhausting RAM with just a few requests.
Solution / Mitigation
A fix for this vulnerability was merged in pull request #44970 on the vLLM GitHub repository: https://github.com/vllm-project/vllm/pull/44970
Vulnerability Details
EPSS: 0.0%
June 17, 2026
Classification
Affected Vendors
Affected Packages
Related Issues
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Original source: https://github.com/advisories/GHSA-6pr9-rp53-2pmc
First tracked: June 17, 2026 at 02:01 PM
Classified by LLM (prompt v3) · confidence: 95%