Out-of-bounds Read Affecting rsync package, versions <0:3.1.3-27.el8_10


Severity

Recommended
0.0
high
0
10

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.78% (52nd percentile)

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  • Snyk IDSNYK-ALMALINUX8-RSYNC-17372245
  • published18 Jun 2026
  • disclosed16 Jun 2026

Introduced: 16 Jun 2026

CVE-2026-43618  (opens in a new tab)
CWE-125  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 rsync to version 0:3.1.3-27.el8_10 or higher.
This issue was patched in ALSA-2026:26408.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rsync package and not the rsync package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

Rsync version 3.4.2 and prior contain an integer overflow vulnerability in the compressed-token decoder where a 32-bit signed counter is not checked for overflow, allowing a malicious sender to trigger an overflow that causes the receiver process to read and return data from outside the intended buffer bounds. Attackers can exploit this vulnerability to disclose process memory contents including environment variables, passwords, heap and stack data, and library memory pointers, significantly reducing ASLR effectiveness and facilitating further exploitation.

CVSS Base Scores

version 3.1