CVE-2026-70461

HIGH 8.2

rsync 3.2.5 < 3.5.0 Heap Out-of-Bounds Write via files-from Entry

CVSS Score

8.2

EPSS Score

0.0%

EPSS Percentile

0th

rsync 3.2.5 before 3.5.0 contains a heap out-of-bounds write vulnerability that allows remote unauthenticated attackers to write one attacker-controlled byte past the end of a heap allocation by supplying a crafted files-from entry. Attackers can trigger the vulnerability against a read-only rsync daemon module by providing a files-from entry containing both an interior and trailing backslash, causing the add_implied_include() function to under-count the trailing backslash when sizing the destination buffer.

CWE	CWE-787
Vendor	rsyncproject
Product	rsync
Published	Aug 13, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

High

Affected Versions

RsyncProject / rsync

3.2.5 ≤ 3.4.4

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/RsyncProject/rsync/security/advisories/GHSA-jhxm-j4mq-3fj4 github.com: https://github.com/RsyncProject/rsync/releases/tag/v3.5.0 vulncheck.com: https://www.vulncheck.com/advisories/rsync-heap-out-of-bounds-write-via-files-from-entry

Credits

gregkh