Allocation of Resources Without Limits or Throttling Affecting eap7-jackson-databind package, versions <0:2.18.8-1.redhat_00003.1.el7eap


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.99% (59th percentile)

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  • Snyk IDSNYK-RHEL7-EAP7JACKSONDATABIND-18683343
  • published12 Aug 2026
  • disclosed13 May 2026

Introduced: 13 May 2026

CVE-2026-42587  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade RHEL:7 eap7-jackson-databind to version 0:2.18.8-1.redhat_00003.1.el7eap or higher.
This issue was patched in RHSA-2026:53644.

NVD Description

Note: Versions mentioned in the description apply only to the upstream eap7-jackson-databind package and not the eap7-jackson-databind package as distributed by RHEL. See How to fix? for RHEL:7 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.

CVSS Base Scores

version 3.1