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CVE-2026-43620

6.5 MEDIUM

Rsync version 3.4.2 and prior contain a receiver-side out-of-bounds array read vulnerability in recv_files() in receiver.c that allows a ...

Published: 2026-05-20 · Last updated: 2026-05-21

Severity and scoring

CVSS
6.5 MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE
CWE-125

Affected products

VendorProduct
sambarsync

Description

Rsync version 3.4.2 and prior contain a receiver-side out-of-bounds array read vulnerability in recv_files() in receiver.c that allows a malicious rsync server to crash the rsync client process. Attackers can exploit the vulnerability by setting CF_INC_RECURSE in compatibility flags and sending a specially crafted file list where the first sorted entry is not the leading dot directory, followed by a transfer record with ndx=0 and an iflag word without ITEM_TRANSFER, causing the receiver to read 8 bytes before the allocated pointer array and dereference an invalid pointer at an unmapped address, resulting in a deterministic SIGSEGV crash of the rsync client.

Source: NVD

References

Related CVEs

Same vendor

  • CVE-2026-4408 — A flaw was found in Samba (9.0 CRITICAL)
  • CVE-2026-2340 — A flaw was found in Samba’s vfs_worm module (6.5 MEDIUM)
  • CVE-2026-1933 — A flaw was found in Samba’s handling of NTFS-style reparse points on shares configured with read only = yes (7.1 HIGH)
  • CVE-2026-3012 — A flaw was found in Samba’s certificate auto-enrollment Group Policy handling (8.0 HIGH)
  • CVE-2026-4480 — A flaw was found in the Samba printing subsystem (9.0 CRITICAL)

Same CWE

  • CVE-2026-4367 — A flaw was found in libXpm (5.5 MEDIUM)
  • CVE-2026-47963 — DNG SDK versions 1.7.1 2536 and earlier are affected by an out-of-bounds read vulnerability that could lead to disclosure of sensitive me... (5.5 MEDIUM)
  • CVE-2026-47934 — DNG SDK versions 1.7.1 2536 and earlier are affected by an out-of-bounds read vulnerability that could lead to disclosure of sensitive me... (5.5 MEDIUM)
  • CVE-2026-47927 — DNG SDK versions 1.7.1 2536 and earlier are affected by an out-of-bounds read vulnerability that could lead to disclosure of sensitive me... (5.5 MEDIUM)
  • CVE-2026-47748 — stable-diffusion.cpp is a pure C/C++ library for running diffusion model (Stable Diffusion, Flux, Wan, Qwen Image, Z-Image, and more) inf... (5.5 MEDIUM)