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MEDIUM

CVE-2024-12086

CVSS v3

6.8

MEDIUM

EPSS Score

1.8 %

exploit probability, as of 2026-10-18

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • rsyncUbuntu:24.10all versions · fixed in 3.3.0-1ubuntu0.1
  • rsyncAlmaLinux:9all versions · fixed in 3.2.5-7.el9_8and 2 other packages

Vendor advisories

  • CVE-2024-12086 Red Hat Product Security38 products fixed · 8 known affected

    rsync: rsync server leaks arbitrary client files

    rsync as a component of Red Hat Enterprise Linux 6 · rsync.src as a component of Red Hat Enterprise Linux 6 · rsync as a component of Red Hat Enterprise Linux 7

  • RHSA-2026:29197 Red Hat Product Security2 products fixed

    Red Hat Security Advisory: A Subscription Management tool for finding and reporting Red Hat product usage

  • RHSA-2026:20603 Red Hat Product Security6 products fixed

    Red Hat Security Advisory: rsync security update

  • RHSA-2026:19368 Red Hat Product Security15 products fixed

    Red Hat Security Advisory: rsync security update

  • RHBA-2025:6470 Red Hat Product Security15 products fixed

    Red Hat Bug Fix Advisory: rsync bug fix and enhancement update

Full record on NVD

Description

A flaw was found in rsync. It could allow a server to enumerate the contents of an arbitrary file from the client's machine. This issue occurs when files are being copied from a client to a server. During this process, the rsync server will send checksums of local data to the client to compare with in order to determine what data needs to be sent to the server. By sending specially constructed checksum values for arbitrary files, an attacker may be able to reconstruct the data of those files byte-by-byte based on the responses from the client.

Technical details

Published
2025-01-14

Frequently asked questions

What is CVE-2024-12086?

A flaw was found in rsync. It could allow a server to enumerate the contents of an arbitrary file from the client's machine. This issue occurs when files are being copied from a client to a server. During this process, the rsync server will send checksums of local data to the client to compare with in order to determine what data needs to be sent to the server. By sending specially constructed checksum values for arbitrary files, an attacker may be able to reconstruct the data of those files byte-by-byte based on the responses from the client.

Is CVE-2024-12086 actively exploited?

Active exploitation of CVE-2024-12086 has not been confirmed. Its EPSS score was 1.8% on 2026-10-18, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2024-12086?

CVE-2024-12086 has a CVSS v3 base score of 6.8 (MEDIUM severity).

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