CVE-2026-53803

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Source
https://cve.org/CVERecord?id=CVE-2026-53803
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53803.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-53803
Aliases
  • GHSA-g9f4-7q66-9582
Downstream
Related
Published
2026-08-13T14:33:18.552Z
Modified
2026-08-18T09:41:56.682141497Z
Severity
  • 8.5 (High) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
rsync < 3.5.0 Symlink Following Arbitrary File Overwrite
Details

rsync before 3.5.0 contains a symlink following vulnerability that allows local attackers to overwrite arbitrary files by placing a symlink at a predictable output path such as --log-file, --write-batch, or daemon-mode log and statistics paths. Attackers can exploit rsync's failure to reject symlinks during ancillary file writes to redirect output to arbitrary filesystem locations, achieving local privilege escalation on installations where rsync runs with elevated privileges such as setuid or privileged daemon configurations.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53803.json",
    "cwe_ids": [
        "CWE-59"
    ]
}
References

Affected packages

Git / github.com/rsyncproject/rsync

Affected ranges

Type
GIT
Repo
https://github.com/rsyncproject/rsync
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
471e17dc0d68233db84db11be82c9f62f4661214
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "3.4.4"
        },
        {
            "fixed": "3.5.0"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "DESCRIPTION",
        "REFERENCES"
    ]
}

Affected versions

Other
mbp_bk_export0
v1.*
v1.6.4
v1.6.5
v1.6.6
v1.6.7
v1.6.8
v1.6.9
v1.7.0
v1.7.1
v1.7.2
v1.7.3
v1.7.4
v2.*
v2.0.0
v2.0.1
v2.0.10
v2.0.11
v2.0.12
v2.0.13
v2.0.14
v2.0.15
v2.0.16
v2.0.17
v2.0.18
v2.0.19
v2.0.2
v2.0.3
v2.0.4
v2.0.5
v2.0.6
v2.0.7
v2.0.8
v2.0.9
v2.1.0
v2.1.1
v2.2.0
v2.2.1
v2.3.0
v2.3.1
v2.3.2
v2.4.0
v2.4.1
v2.4.2
v2.4.3
v2.4.4
v2.4.5
v2.4.6
v2.4.7pre2
v2.4.7pre4
v2.5.0
v2.5.1
v2.5.1pre1
v2.5.1pre2
v2.5.1pre3
v2.5.2
v2.5.2pre1
v2.5.2pre2
v2.5.2pre3
v2.5.3
v2.5.3pre1
v2.5.4
v2.5.4pre1
v2.5.5
v2.5.5.rc1
v2.5.6
v2.6.0
v2.6.0pre1
v2.6.0pre2
v2.6.1
v2.6.1pre1
v2.6.1pre2
v2.6.2
v2.6.2pre1
v2.6.3
v2.6.3pre1
v2.6.3pre2
v2.6.4
v2.6.4pre1
v2.6.4pre2
v2.6.4pre3
v2.6.4pre4
v2.6.5
v2.6.5pre1
v2.6.5pre2
v2.6.6pre1
v2.6.7
v2.6.7pre1
v2.6.7pre2
v2.6.7pre3
v2.6.8
v2.6.8pre1
v2.6.9
v2.6.9pre1
v2.6.9pre2
v2.6.9pre3
v3.*
v3.0.0
v3.0.0pre1
v3.0.0pre10
v3.0.0pre2
v3.0.0pre3
v3.0.0pre4
v3.0.0pre5
v3.0.0pre6
v3.0.0pre7
v3.0.0pre8
v3.0.0pre9
v3.0.1
v3.0.1pre1
v3.0.1pre2
v3.0.1pre3
v3.0.2
v3.0.3
v3.0.3pre1
v3.0.3pre2
v3.0.3pre3
v3.1.0
v3.1.0pre1
v3.1.1
v3.1.1pre1
v3.1.1pre2
v3.1.2
v3.1.2pre1
v3.1.3
v3.1.3pre1
v3.2.0
v3.2.0pre1
v3.2.0pre2
v3.2.0pre3
v3.2.1
v3.2.1pre1
v3.2.2
v3.2.2pre1
v3.2.2pre2
v3.2.2pre3
v3.2.3
v3.2.3pre1
v3.2.4
v3.2.4pre1
v3.2.4pre2
v3.2.4pre3
v3.2.4pre4
v3.2.5
v3.2.5pre1
v3.2.5pre2
v3.2.6
v3.2.7
v3.2.7pre1
v3.3.0
v3.3.0pre1
v3.4
v3.4.0
v3.4.1
v3.4.2
v3.4.3

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53803.json"