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Fencer Intel
medium 6.1

CVE-2024-12086 json

Rsync: rsync server leaks arbitrary client files

published last yr. modified 10d ago also EUVD-2024-50582 , JLSEC-2025-325

cvss
6.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.8%
EPSS 1.8% chance of exploitation in 30 days, percentile 78%
public exploits
0
none known

Summary

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.

Patch / fix

  • julia rsync_jll 3.4.0+0
  • Red Hat Red Hat Enterprise Linux 10 0:3.4.1-2.el10
  • Red Hat Red Hat Enterprise Linux 9 0:3.2.5-7.el9_8
  • Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support 0:3.2.5-3.el9_6.1
  • Red Hat Red Hat Discovery 2 1782166952
  • rsync Debian 12 3.2.7-1+deb12u1
  • rsync Debian 14, Debian 13 3.3.0+ds1-3

debian advisories DEBIAN-CVE-2024-12086

  • rsync Ubuntu 20.04 LTS 3.1.3-8ubuntu0.8
  • rsync Ubuntu 22.04 LTS 3.2.7-0ubuntu0.22.04.3
  • rsync Ubuntu 24.04 LTS 3.2.7-1ubuntu1.1
  • rsync Ubuntu Pro 14.04 LTS 3.1.0-2ubuntu0.4+esm1
  • rsync Ubuntu Pro 16.04 LTS 3.1.1-3ubuntu1.3+esm3
  • rsync Ubuntu Pro 18.04 LTS 3.1.2-2.1ubuntu1.6+esm1

ubuntu advisories UBUNTU-CVE-2024-12086

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • rsync RHEL 9 3.2.5-7.el9_8
  • rsync-daemon RHEL 9 3.2.5-7.el9_8
  • rsync-rrsync RHEL 9 3.2.5-7.el9_8
  • rsync RHEL 10.0 3.4.1-2.el10
  • rsync-daemon RHEL 10.0 3.4.1-2.el10
  • rsync-rrsync RHEL 10.0 3.4.1-2.el10
  • rsync RHEL 9.6 EUS 3.2.5-3.el9_6.1
  • rsync-daemon RHEL 9.6 EUS 3.2.5-3.el9_6.1

red hat advisories RHSA-2026:20603RHSA-2026:19368RHBA-2025:6470

  • rsync Linux Micro 6.1 3.3.0-slfo.1.1_3.1
  • rsync Linux Micro 6.0 3.2.7-4.1
  • rsync SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES 15 SP5-LTSS +10 more 3.2.3-150400.3.17.1
  • rsync SLES for SAP 15 SP3, SLES 15 SP3-LTSS, SLE Micro 5.2 +3 more 3.2.3-150000.4.33.1
  • rsync SLE Module for Basesystem 15 SP6, openSUSE Leap 15.6 3.2.7-150600.3.8.1
  • rsync SLES LTSS Extended Security 12 SP5, SLES 12 SP5-LTSS 3.1.3-3.22.1

suse advisories SUSE-SU-2025:20223-1SUSE-SU-2025:20122-1SUSE-SU-2025:0166-1SUSE-SU-2025:0165-1SUSE-SU-2025:0157-1SUSE-SU-2025:0156-1

  • rsync openSUSE Tumbleweed 3.4.1-1.1

opensuse advisories openSUSE-SU-2025:14665-1

  • rsync AlmaLinux 9 3.2.5-7.el9_8
  • rsync-daemon AlmaLinux 9 3.2.5-7.el9_8
  • rsync-rrsync AlmaLinux 9 3.2.5-7.el9_8

almalinux advisories ALSA-2026:19368

  • rsync Rocky Linux 9 3.2.5-7.el9_8

rocky linux advisories RLSA-2026:19368

  • rsync Alpine 3.24, Alpine 3.23, Alpine 3.22 +4 more 3.4.0-r0

alpine advisories ALPINE-CVE-2024-12086

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • rsync CBL-Mariner 2.0, Azure Linux 3.0 3.4.1-1

azure linux advisories AZL-55661AZL-55685

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

  • rsync Arch Linux 3.4.0-1

arch linux advisories AVG-2858

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-12086 updated cvss 6.1

rsync: rsync server leaks arbitrary client files

  • Red Hat Enterprise Linux 6 rsync Red Hat Enterprise Linux 7 rsync
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 8 rsync, rsync-daemon
    affected: workaround, no fix available
  • Red Hat OpenShift Container Platform 4 openshift/ose-rhel-coreos-9
    affected: workaround, no fix available “Fix deferred”
  • Red Hat Discovery 2 discovery/discovery-ui-rhel9 1782166952
    fixed: vendor fix RHSA-2026:29197
  • Red Hat Enterprise Linux AppStream (v. 9) rsync-daemon 3.2.5-7.el9_8, rsync-rrsync 3.2.5-7.el9_8
    fixed: vendor fix RHSA-2026:19368
  • Red Hat Enterprise Linux AppStream (v. 10) rsync-daemon 3.4.1-2.el10, rsync-rrsync 3.4.1-2.el10
    fixed: vendor fix RHBA-2025:6470
  • Red Hat Enterprise Linux AppStream EUS (v.9.6) rsync-daemon 3.2.5-3.el9_6.1
    fixed: vendor fix RHSA-2026:20603
  • Red Hat Enterprise Linux BaseOS (v. 9) rsync 3.2.5-7.el9_8
    fixed: vendor fix RHSA-2026:19368
show 3 more
  • Red Hat Enterprise Linux BaseOS (v. 10) rsync 3.4.1-2.el10
    fixed: vendor fix RHBA-2025:6470
  • Red Hat Enterprise Linux BaseOS EUS (v.9.6) rsync 3.2.5-3.el9_6.1
    fixed: vendor fix RHSA-2026:20603
  • Red Hat Discovery 2 discovery/discovery-server-rhel9 1782159791 Red Hat Enterprise Linux AppStream EUS (v.9.6) rsync-rrsync 3.2.5-3.el9_6.1 Red Hat Enterprise Linux BaseOS EUS (v.9.6) rsync-debuginfo 3.2.5-3.el9_6.1, rsync-debugsource 3.2.5-3.el9_6.1
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
last yr.

Exploit prediction

1.79% chance of exploitation in the next 30 days, higher than 78% of all scored CVEs (FIRST EPSS, 2026-11-14).

Exploits and checks

  • github.com https://github.com/google/security-research/security/advisories/GHSA-p5pg-x43v-mvqj referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 6.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N
NVD 3.1 6.8 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
OSV 3.1 6.8 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
julia rsync_jll
<3.4.0+0
3.4.0+0

Affected products

  • RsyncProject rsync
  • Red Hat Red Hat Enterprise Linux 10
  • Red Hat Red Hat Enterprise Linux 9
  • Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support
  • Red Hat Red Hat Discovery 2
  • Red Hat Red Hat Enterprise Linux 6
  • Red Hat Red Hat Enterprise Linux 7
  • Red Hat Red Hat Enterprise Linux 8
  • Red Hat Red Hat OpenShift Container Platform 4

Classification

Weakness
  • CWE-390 Detection of Error Condition Without Action

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.