Out-of-bounds Read Affecting neo4j-5.26 package, versions <5.26.19-r0


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.05% (17th percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-NEO4J526-15200367
  • published4 Feb 2026
  • disclosed12 Dec 2025

Introduced: 12 Dec 2025

CVE-2025-67721  (opens in a new tab)
CWE-125  (opens in a new tab)
CWE-201  (opens in a new tab)

How to fix?

Upgrade Minimos:latest neo4j-5.26 to version 5.26.19-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream neo4j-5.26 package and not the neo4j-5.26 package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

Aircompressor is a library with ports of the Snappy, LZO, LZ4, and Zstandard compression algorithms to Java. In versions 3.3 and below, incorrect handling of malformed data in Java-based decompressor implementations for Snappy and LZ4 allow remote attackers to read previous buffer contents via crafted compressed input. With certain crafted compressed inputs, elements from the output buffer can end up in the uncompressed output, potentially leaking sensitive data. This is relevant for applications that reuse the same output buffer to uncompress multiple inputs. This can be the case of a web server that allocates a fix-sized buffer for performance purposes. There is similar vulnerability in GHSA-cmp6-m4wj-q63q. This issue is fixed in version 3.4.

CVSS Base Scores

version 3.1