CVE-2026-122129
CESNET ipfixcol2 2.7.1 before 2.9.0 contains a memory allocation vulnerability in Lz4Decoder::read_start_header() that allows unauthenticated attackers to exhaust memory by declaring unbounded ring buffer sizes. Attackers can open TCP connections sending LZ4 start headers with very large buffer sizes, forcing up to 4 GiB allocations per connection and denying collector service.
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The sources do not list affected products or versions for this vulnerability yet.
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Published
First publication at the source
Collected
First seen by Baba Yaga Security
Last modified
Latest change at the source