Resource Exhaustion Affecting opentelemetry-collector-contrib package, versions <0.158.0-r1


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.5% (41st percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-OPENTELEMETRYCOLLECTORCONTRIB-18573302
  • published7 Aug 2026
  • disclosed29 May 2026

Introduced: 29 May 2026

CVE-2026-46385  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade Minimos:latest opentelemetry-collector-contrib to version 0.158.0-r1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream opentelemetry-collector-contrib package and not the opentelemetry-collector-contrib package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

iskorotkov/avro is a fast Go Avro codec. Prior to 2.33.0, the Avro array and map decoders looped over an attacker-controlled block-count value without checking the underlying reader's error state inside the loop body. Reader.ReadBlockHeader returns the count as a Go int, which is 64-bit on amd64 / arm64 targets — so a producer can declare a block of up to math.MaxInt64 (~9.2 × 10¹⁸) elements followed by EOF (or any truncated payload), and the decoder will attempt that many no-op iterations before propagating the error. The realistic ceiling is "indefinite until the worker is killed externally" — a single hostile payload pins a CPU core until the process is OOM-killed, deadline-cancelled, or terminated. Remote, unauthenticated denial-of-service. This vulnerability is fixed in 2.33.0.

CVSS Base Scores

version 3.1