Utility interruption via unbounded input buffering
Published Apr 13, 2026 · Updated Apr 13, 2026
Resource exhaustion in FFmpeg zmqsend 8.0.1 allows attackers to interrupt the utility by supplying an oversized local input file. The tool reads the entire input into an AVBPrint buffer configured with AV_BPRINT_SIZE_UNLIMITED before sending it, so file size directly controls process memory consumption. The attacker must be able to supply input to the command-line tool; Debian disputes the security impact because the operating system reclaims the process resources after exit.
Summary
What happened
Resource exhaustion in FFmpeg zmqsend 8.0.1 allows attackers to interrupt the utility by supplying an oversized local input file. The tool reads the entire input into an AVBPrint buffer configured with AV_BPRINT_SIZE_UNLIMITED before sending it, so file size directly controls process memory consumption. The attacker must be able to supply input to the command-line tool; Debian disputes the security impact because the operating system reclaims the process resources after exit.
The record
- CVE
- CVE-2026-30998
- Published
- Apr 13, 2026
- Updated
- Apr 13, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-400, T1499
- Attack vector
- local
- Privileges
- Unavailable
Timeline
How it unfolded
- Apr 13, 2026CVE publishedPublication date reported by the CVE source.
- Apr 13, 2026Record updatedLatest update available in the CVE record.
Exploitability
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What is affected?
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Published CVSS scores
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Attacks
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Public exploit references
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Technologies
Your stack
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Your stack
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