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

Social Trends
EPSS
0.12% (2nd percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-RUBY32FLUENTDKUBERNETESDAEMONSET118KINESIS-17432618
  • published24 Jun 2026
  • disclosed1 Jul 2026

Introduced: 24 Jun 2026

NewCVE-2026-54898  (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. In versions prior to 3.17.2,Oj::Parser#parse is vulnerable to a heap use-after-free when a SAJ/SAJ2 callback mutates the input JSON string during parsing. The C engine holds a raw const byte * pointer into the Ruby string's internal buffer. If a callback (e.g. hash_start) resizes the string — for example by calling String#replace with a longer value — Ruby reallocates the string buffer and frees the old one. The C parser's pointer is left dangling; the next character read at parser.c:607 is a use-after-free. This issue has been fixed in version 3.17.2.