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NVD / CVE Program· CNA VulnCheck

CVE-2026-53785: rsync < 3.5.0 Path Traversal Write Escape via --relative Mode

Noroxi assessment

Priority: Monitor (action score 27/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.19% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: rsync (AlmaLinux:10) 3.5.0-3.el10_2; rsync-daemon (AlmaLinux:10) 3.5.0-3.el10_2; rsync-rrsync (AlmaLinux:10) 3.5.0-3.el10_2.

Low priority for now. Upgrade to rsync (AlmaLinux:10) 3.5.0-3.el10_2; rsync-daemon (AlmaLinux:10) 3.5.0-3.el10_2; rsync-rrsync (AlmaLinux:10) 3.5.0-3.el10_2 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

rsync before 3.5.0 contains a path traversal vulnerability that allows a malicious sender to write files outside the intended destination directory tree by crafting relative paths with symlink components in --relative mode. The make_path() function follows symlinks pointing outside the destination tree while creating intermediate directories without verifying that created paths remain within the destination boundary, enabling arbitrary file writes on the receiver's filesystem.

MediumCVSS 6.9 · v4.0—No exploit Fix available
Published
Aug 13, 2026
Updated
Oct 24, 2026
EPSS
0.1% · 8th percentile

Report tools

JSON

Action score

27

Monitor

Low priority for now.

CVSS
27 / 40 · 6.9 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · VulnCheck
6.9
NVD has not scored this yet; the score shown is the CNA’s.

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-53785

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (VulnCheck). Independent of NVD's CPE analysis and usually ahead of it.

  • RsyncProject rsync

    • 3.5.0not affected
    • up to and including 3.4.4affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
AlmaLinux:10rsyncbefore 3.5.0-3.el10_23.5.0-3.el10_2
AlmaLinux:10rsync-daemonbefore 3.5.0-3.el10_23.5.0-3.el10_2
AlmaLinux:10rsync-rrsyncbefore 3.5.0-3.el10_23.5.0-3.el10_2
AlmaLinux:8rsyncbefore 3.1.3-28.el8_103.1.3-28.el8_10
AlmaLinux:8rsync-daemonbefore 3.1.3-28.el8_103.1.3-28.el8_10
AlmaLinux:9rsyncbefore 3.2.7-1.el9_83.2.7-1.el9_8
AlmaLinux:9rsync-daemonbefore 3.2.7-1.el9_83.2.7-1.el9_8
AlmaLinux:9rsync-rrsyncbefore 3.2.7-1.el9_83.2.7-1.el9_8
Alpine:v3.21rsyncbefore 3.5.0-r03.5.0-r0
Debian:12rsyncfrom 0—
Debian:13rsyncbefore 3.5.0+ds1-0+deb13u13.5.0+ds1-0+deb13u1
Debian:14rsyncbefore 3.5.0+ds1-13.5.0+ds1-1
openSUSE:Leap 16.0rsyncbefore 3.4.1-160000.6.13.4.1-160000.6.1
openSUSE:Tumbleweedrsyncbefore 3.5.1-1.13.5.1-1.1
Red Hat:enterprise_linux:10.2rsyncbefore 0:3.5.0-3.el10_20:3.5.0-3.el10_2
Red Hat:enterprise_linux:10.2rsync-daemonbefore 0:3.5.0-3.el10_20:3.5.0-3.el10_2
Red Hat:enterprise_linux:10.2rsync-debuginfobefore 0:3.5.0-3.el10_20:3.5.0-3.el10_2
Red Hat:enterprise_linux:10.2rsync-debugsourcebefore 0:3.5.0-3.el10_20:3.5.0-3.el10_2
Red Hat:enterprise_linux:10.2rsync-rrsyncbefore 0:3.5.0-3.el10_20:3.5.0-3.el10_2
Red Hat:enterprise_linux:8::baseosrsyncbefore 0:3.1.3-28.el8_100:3.1.3-28.el8_10
Red Hat:enterprise_linux:8::baseosrsync-daemonbefore 0:3.1.3-28.el8_100:3.1.3-28.el8_10
Red Hat:enterprise_linux:8::baseosrsync-debuginfobefore 0:3.1.3-28.el8_100:3.1.3-28.el8_10
Red Hat:enterprise_linux:8::baseosrsync-debugsourcebefore 0:3.1.3-28.el8_100:3.1.3-28.el8_10
Red Hat:enterprise_linux:9::appstreamrsync-daemonbefore 0:3.2.7-1.el9_80:3.2.7-1.el9_8

+12

Same product

rsyncproject: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-70460rsync 2.3.3 < 3.5.0 Path Traversal via --partial-dir/--backup-dir Symlink
    36Monitor
  • CVE-2026-70452rsync 3.1.0 < 3.5.0 Access Control Bypass via DNS Resolution Failure
    36Monitor
  • CVE-2026-53793rsync < 3.5.0 Path Confinement Bypass via /./ Boundary Marker in Chroot Mode
    36Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2026-53783Aug 13, 2026 · rsync < 3.5.0 TOCTOU Race Condition Directory Escape via rrsync
    34Monitor
  • Later →CVE-2026-53788Aug 13, 2026 · rsync < 3.5.0 Newline Injection via name-converter uid/gid mapping
    27Monitor
  • Later →CVE-2026-53790Aug 13, 2026 · rsync < 3.5.0 Command Injection via Multiple Code Paths
    36Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
almalinux:rsync3.2.7-1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:rsync-daemon3.2.7-1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:rsync-rrsync3.2.7-1.el9_8 · AlmaLinux:9Package registry (OSV)
alpine:rsync3.5.0-r0 · Alpine:v3.21Package registry (OSV)
debian:rsync3.5.0+ds1-0+deb13u1 · Debian:13Package registry (OSV)
opensuse:rsync3.5.1-1.1 · openSUSE:TumbleweedPackage registry (OSV)
red hat:rsync0:3.2.7-1.el9_8 · Red Hat:enterprise_linux:9::baseosPackage registry (OSV)
red hat:rsync-daemon0:3.2.7-1.el9_8 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:rsync-debuginfo0:3.2.7-1.el9_8 · Red Hat:enterprise_linux:9::baseosPackage registry (OSV)
red hat:rsync-debugsource0:3.2.7-1.el9_8 · Red Hat:enterprise_linux:9::baseosPackage registry (OSV)
red hat:rsync-rrsync0:3.2.7-1.el9_8 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
rocky linux:rsync0:3.2.7-1.el9_8 · Rocky Linux:9Package registry (OSV)
suse:rsync3.2.7-8.1 · SUSE:Linux Micro 6.0Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2026-537930 days apartrsync < 3.5.0 Path Confinement Bypass via /./ Boundary Marker in Chroot Mode
    36Monitor
  • CVE-2026-537830 days apartrsync < 3.5.0 TOCTOU Race Condition Directory Escape via rrsync
    34Monitor
  • CVE-2026-537960 days apartrsync < 3.5.0 TOCTOU Race Condition via Destination Directory Handling
    23Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
Integrity
Availability
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
X

Weakness class (CWE)

CWE-59 · Improper Link Resolution Before File Access ('Link Following')

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (2 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records