Description
It has been discovered that lftp up to and including version 4.8.3 does not properly sanitize remote file names, leading to a loss of integrity on the local system when reverse mirroring is used. A remote attacker may trick a user to use reverse mirroring on an attacker controlled FTP server, resulting in the removal of all files in the current working directory of the victim's system.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| [UNKNOWN] | lftp | up to and including 4.8.3 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | lftp | 4.8.4-1 | — |
| Debian 13 | lftp | 4.8.4-1 | — |
| Debian 12 | lftp | 4.8.4-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | lftp | 4.8.1-1ubuntu0.1 | USN-3731-1 |
| Ubuntu 16.04 LTS | lftp | 4.6.3a-1ubuntu0.1 | USN-3731-1 |
| Ubuntu 14.04 LTS | lftp | 4.4.13-1ubuntu0.1 | USN-3731-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | lftp +1 | 4.4.8-12.el7 | RHSA-2020:1045 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 | lftp | 4.8.3-4.3.1 | SUSE-SU-2019:0643-1 |
| SLES 12 SP4 | lftp | 4.7.4-3.6.1 | SUSE-SU-2019:0642-1 |
| SLES 12 SP3 | lftp | 4.7.4-3.6.1 | SUSE-SU-2019:0642-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP4 | lftp | 4.7.4-3.6.1 | SUSE-SU-2019:0642-1 |
| SLES for SAP 12 SP3 | lftp | 4.7.4-3.6.1 | SUSE-SU-2019:0642-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | lftp | 4.9.2-1.7 | openSUSE-SU-2024:10915-1 |
| openSUSE Leap 15.0 | lftp | 4.8.3-lp150.3.3.1 | openSUSE-SU-2019:1110-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | lftp | 4.8.4-r0 | — |
| Alpine v3.23 | lftp | 4.8.4-r0 | — |
| Alpine v3.22 | lftp | 4.8.4-r0 | — |
| Alpine v3.21 | lftp | 4.8.4-r0 | — |
| Alpine v3.20 | lftp | 4.8.4-r0 | — |
Show 11 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | lftp | 4.8.4-r0 | — |
| Alpine v3.18 | lftp | 4.8.4-r0 | — |
| Alpine v3.17 | lftp | 4.8.4-r0 | — |
| Alpine v3.16 | lftp | 4.8.4-r0 | — |
| Alpine v3.15 | lftp | 4.8.4-r0 | — |
| Alpine v3.14 | lftp | 4.8.4-r0 | — |
| Alpine v3.13 | lftp | 4.8.4-r0 | — |
| Alpine v3.12 | lftp | 4.8.4-r0 | — |
| Alpine v3.11 | lftp | 4.8.4-r0 | — |
| Alpine v3.10 | lftp | 4.8.4-r0 | — |
| Alpine v3.9 | lftp | 4.8.4-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | lftp +1 | 4.4.8-12.amzn2.1 | ALAS2-2020-1453 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | lftp +1 | 4.4.8-12.el7 | ELSA-2020-1045 |
Advisories 9
- RHSA-2020:1045 Red Hat Security Advisory: lftp security update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- USN-3731-1 lftp vulnerability Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2019:0643-1 Security update for lftp SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2019:1110-1 Security update for lftp SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10915-1 lftp-4.9.2-1.7 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:0642-1 Security update for lftp SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2025-2548 Red Hat Enterprise Linux: Mehrere Schwachstellen BSI CERT-Bund (WID) · Dec 2, 2025
- ALAS2-2020-1453 Moderate: lftp security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Jul 17, 2020
- ELSA-2020-1045 Moderate: lftp security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Apr 6, 2020