Use After Free Affecting ruby3.2-fluentd-kubernetes-daemonset-1.18-kinesis package, versions *


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.12% (2nd percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-RUBY32FLUENTDKUBERNETESDAEMONSET118KINESIS-17433982
  • published24 Jun 2026
  • disclosed1 Jul 2026

Introduced: 24 Jun 2026

NewCVE-2026-54897  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

There is no fixed version for Minimos:latest ruby3.2-fluentd-kubernetes-daemonset-1.18-kinesis.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby3.2-fluentd-kubernetes-daemonset-1.18-kinesis package and not the ruby3.2-fluentd-kubernetes-daemonset-1.18-kinesis package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

Oj (Optimized JSON) is a JSON parser and Object marshaller packaged as a Ruby gem. Prior to 3.17.2, Oj::Doc iterators (each_value, each_child, each_leaf) were vulnerable to a heap use-after-free. When a Ruby block yielded during iteration calls doc.close or d.close, the document's heap memory is freed while the C iterator is still running. When control returns from the block, the iterator reads from the freed region, producing a use-after-free accessible from pure Ruby. This issue has been fixed in version 3.17.2.