Resource Exhaustion Affecting zipkin package, versions <3.6.1-r6
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published9 May 2026
- disclosed13 May 2026
Introduced: 9 May 2026
NewCVE-2026-42587 (opens in a new tab)How to fix?
Upgrade Wolfi zipkin to version 3.6.1-r6 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream zipkin package and not the zipkin package as distributed by Wolfi.
See How to fix? for Wolfi relevant fixed versions and status.
Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, HttpContentDecompressor accepts a maxAllocation parameter to limit decompression buffer size and prevent decompression bomb attacks. This limit is correctly enforced for gzip and deflate encodings via ZlibDecoder, but is silently ignored when the content encoding is br (Brotli), zstd, or snappy. An attacker can bypass the configured decompression limit by sending a compressed payload with Content-Encoding: br instead of Content-Encoding: gzip, causing unbounded memory allocation and out-of-memory denial of service. The same vulnerability exists in DelegatingDecompressorFrameListener for HTTP/2 connections. This vulnerability is fixed in 4.2.13.Final and 4.1.133.Final.