Catalogo CVE
CVE-2026-53783
rsync before 3.5.0 contains a time-of-check to time-of-use (TOCTOU) race condition vulnerability in the rrsync restricted shell wrapper that allows authenticated clients to escape enforced directory r
- Gravità
- High · CVSS 8.6
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/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 - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.37% · Oct 23, 2026
rsync before 3.5.0 contains a time-of-check to time-of-use (TOCTOU) race condition vulnerability in the rrsync restricted shell wrapper that allows authenticated clients to escape enforced directory restrictions by substituting a symlink for a path component after validation but before transfer processing. Attackers can additionally leverage unrestricted flags such as --copy-unsafe-links, -D, and --log-file through rrsync to read or write files outside the permitted directory subtree.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | rsync | sid | 3.5.1+ds1-2 | fixed |
| Debian | rsync | forky | 3.5.1+ds1-2 | fixed |
| Debian | rsync | trixie | 3.4.1+ds1-5+deb13u4 | vulnerable |
| Debian | rsync | trixie-security | 3.5.0+ds1-0+deb13u1 | fixed |
| Debian | rsync | bookworm | 3.2.7-1+deb12u6 | vulnerable |
| Debian | rsync | bookworm-security | 3.2.7-1+deb12u5 | vulnerable |
| Alpine | rsync | 3.21 | 3.5.0-r0 | fixed |
| Alpine | rsync | 3.22 | 3.5.0-r0 | fixed |
| Alpine | rsync | 3.23 | 3.5.0-r0 | fixed |
| Alpine | rsync | 3.24 | 3.5.0-r0 | fixed |
| Suse | rsync | linux micro 6.1 | 3.3.0-slfo.1.1_7.1 | fixed |
| Suse | rsync | linux enterprise module for basesystem 15 sp7 | 3.2.7-150600.3.24.1 | fixed |
| Suse | rsync | linux enterprise server 15 sp6-ltss | 3.2.7-150600.3.24.1 | fixed |
| Suse | rsync | linux enterprise server for sap applications 15 sp6 | 3.2.7-150600.3.24.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | rsync | source | sid | 3.5.0+ds1-1 | not yet assigned | Not reported | Not reported |
| Debian | rsync | source | forky | 3.5.0+ds1-1 | not yet assigned | Not reported | Not reported |
| Debian | rsync | source | trixie | 3.5.0+ds1-0+deb13u1 | not yet assigned | Not reported | Not reported |
| Debian | rsync | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
| Alpine | rsync | apk | 3.21 | 3.5.0-r0 | Not reported | ALPINE-CVE-2026-53783 | Not reported |
| Alpine | rsync | apk | 3.22 | 3.5.0-r0 | Not reported | ALPINE-CVE-2026-53783 | Not reported |
| Alpine | rsync | apk | 3.23 | 3.5.0-r0 | Not reported | ALPINE-CVE-2026-53783 | Not reported |
| Alpine | rsync | apk | 3.24 | 3.5.0-r0 | Not reported | ALPINE-CVE-2026-53783 | Not reported |
| Suse | rsync | rpm | linux micro 6.1 | 3.3.0-slfo.1.1_7.1 | Not reported | SUSE-SU-2026:23254-1 | Not reported |
| Suse | rsync | rpm | linux enterprise module for basesystem 15 sp7 | 3.2.7-150600.3.24.1 | Not reported | SUSE-SU-2026:3657-1 | Not reported |
| Suse | rsync | rpm | linux enterprise server 15 sp6-ltss | 3.2.7-150600.3.24.1 | Not reported | SUSE-SU-2026:3657-1 | Not reported |
| Suse | rsync | rpm | linux enterprise server for sap applications 15 sp6 | 3.2.7-150600.3.24.1 | Not reported | SUSE-SU-2026:3657-1 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [rsync]Interessata
Dettagli (4)
3.2.7-1+deb12u6· amd64 · bookwormInteressata
nvd · rsync · debian · bookworm; nvd · rsync · debian · 12
3.2.7-1+deb12u6· arm64 · bookwormInteressata
nvd · rsync · debian · bookworm; nvd · rsync · debian · 12
3.2.7-1+deb12u5· amd64 · bookworm-securityInteressata
nvd · rsync · debian · bookworm; nvd · rsync · debian · 12
3.2.7-1+deb12u5· arm64 · bookworm-securityInteressata
nvd · rsync · debian · bookworm; nvd · rsync · debian · 12
[Debian 13 (Trixie)]
- [rsync]Interessata
Dettagli (5)
3.4.1+ds1-5+deb13u4· amd64 · trixieInteressata · Corretta:
3.5.0+ds1-0+deb13u1nvd · rsync · debian · 13
3.4.1+ds1-5+deb13u4· arm64 · trixieInteressata · Corretta:
3.5.0+ds1-0+deb13u1nvd · rsync · debian · 13
3.4.1+ds1-5+deb13u3· amd64 · trixie-security · Historical versionInteressata · Corretta:
3.5.0+ds1-0+deb13u1nvd · rsync · debian · 13
3.4.1+ds1-5+deb13u3· arm64 · trixie-securityInteressata · Corretta:
3.5.0+ds1-0+deb13u1nvd · rsync · debian · 13
3.5.0+ds1-0+deb13u1· amd64 · trixie-securityCorretta · Corretta:
3.5.0+ds1-0+deb13u1nvd · rsync · debian · 13
Osservato:
Riferimenti
- [https://access.redhat.com/errata/RHSA-2026:67462]
- [https://ftp.suse.com/pub/projects/security/]
- [https://github.com/RsyncProject/rsync/releases/tag/v3.5.0]
- [https://github.com/RsyncProject/rsync/security/advisories/GHSA-9cgc-64g4-3gv5]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-53783]
- [https://osv.dev/vulnerability/ALPINE-CVE-2026-53783]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-53783]
- [https://osv.dev/vulnerability/SUSE-SU-2026:23254-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:3657-1]
- [https://security-tracker.debian.org/tracker/CVE-2026-53783]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2817.json]
- [https://www.vulncheck.com/advisories/rsync-toctou-race-condition-directory-escape-via-rrsync]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]