Allocation of Resources Without Limits or Throttling The advisory has been revoked - it doesn't affect any version of package openshift4/ose-thanos-rhel8  (opens in a new tab)


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EPSS
0.81% (54th percentile)

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  • Snyk IDSNYK-RHEL7-OPENSHIFT4OSETHANOSRHEL8-17345904
  • published16 Jun 2026
  • disclosed4 May 2026

Introduced: 4 May 2026

CVE-2026-42154  (opens in a new tab)
CWE-770  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:7.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openshift4/ose-thanos-rhel8 package and not the openshift4/ose-thanos-rhel8 package as distributed by RHEL.

Prometheus is an open-source monitoring system and time series database. Prior to versions 3.5.3 and 3.11.3, the remote read endpoint (/api/v1/read) does not validate the declared decoded length in a snappy-compressed request body before allocating memory. An unauthenticated attacker can send a small payload that causes a huge heap allocation per request. Under concurrent load this can exhaust available memory and crash the Prometheus process. This issue has been patched in versions 3.5.3 and 3.11.3.

References