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CVE-2026-119146

ProFTPD before 1.3.9e and 1.3.10rc5 Buffer Overflow via mod_rewrite utf8trans RewriteMap

6.3 MediumFix available

ProFTPD before 1.3.9e and 1.3.10rc5 contains a buffer overflow vulnerability in the mod_rewrite int:utf8trans RewriteMap that allows remote attackers to overwrite static buffers. Attackers can send FTP command arguments longer than 1024 bytes, without authentication if pre-login commands are rewritten, to corrupt session memory and crash the session.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
High
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
Low
Integrity
Low
Availability
Low

Exploit likelihood

0.46%Unchanged since Oct 31, 2026
90%50%10%1%

What each source reports

CVE List Score used 6.3

ProFTPD before 1.3.9e and 1.3.10rc5 Buffer Overflow via mod_rewrite utf8trans RewriteMap

ProFTPD before 1.3.9e and 1.3.10rc5 contains a buffer overflow vulnerability in the mod_rewrite int:utf8trans RewriteMap that allows remote attackers to overwrite static buffers. Attackers can send FTP command arguments longer than 1024 bytes, without authentication if pre-login commands are rewritten, to corrupt session memory and crash the session.

Record
CVE-2026-119146
CVSS 4.0
6.3 MediumCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
CVSS 3.1
5.6 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Weakness
CWE-120
Updated
2026-11-04
EUVDEUVD-2026-113779 6.3

ProFTPD before 1.3.9e and 1.3.10rc5 contains a buffer overflow vulnerability in the mod_rewrite int:utf8trans RewriteMap that allows remote attackers to overwrite static buffers. Attackers can send FTP command arguments longer than 1024 bytes, without authentication if pre-login commands are rewritten, to corrupt session memory and crash the session.

Record
EUVD-2026-113779
CVSS 4.0
6.3 MediumCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
Updated
2026-11-04
GitHub AdvisoriesGHSA-wj68-6748-262r 6.3

ProFTPD before 1.3.9e and 1.3.10rc5 contains a buffer overflow vulnerability in the mod_rewrite...

ProFTPD before 1.3.9e and 1.3.10rc5 contains a buffer overflow vulnerability in the mod_rewrite int:utf8trans RewriteMap that allows remote attackers to overwrite static buffers. Attackers can send FTP command arguments longer than 1024 bytes, without authentication if pre-login commands are rewritten, to corrupt session memory and crash the session.

Record
GHSA-wj68-6748-262r
CVSS 4.0
6.3 MediumCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/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
CVSS 3.1
5.6 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Weakness
CWE-120
Updated
2026-11-02
NVD 6.3

ProFTPD before 1.3.9e and 1.3.10rc5 contains a buffer overflow vulnerability in the mod_rewrite int:utf8trans RewriteMap that allows remote attackers to overwrite static buffers. Attackers can send FTP command arguments longer than 1024 bytes, without authentication if pre-login commands are rewritten, to corrupt session memory and crash the session.

Record
CVE-2026-119146
CVSS 4.0
6.3 MediumCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/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
CVSS 3.1
5.6 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Weakness
CWE-120
Updated
2026-11-04
OSVALPINE-CVE-2026-119146 6.3

ProFTPD before 1.3.9e and 1.3.10rc5 contains a buffer overflow vulnerability in the mod_rewrite int:utf8trans RewriteMap that allows remote attackers to overwrite static buffers. Attackers can send FTP command arguments longer than 1024 bytes, without authentication if pre-login commands are rewritten, to corrupt session memory and crash the session.

Record
ALPINE-CVE-2026-119146
CVSS 4.0
6.3 MediumCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/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
Updated
2026-11-04
OSV 6.3

ProFTPD before 1.3.9e and 1.3.10rc5 Buffer Overflow via mod_rewrite utf8trans RewriteMap

ProFTPD before 1.3.9e and 1.3.10rc5 contains a buffer overflow vulnerability in the mod_rewrite int:utf8trans RewriteMap that allows remote attackers to overwrite static buffers. Attackers can send FTP command arguments longer than 1024 bytes, without authentication if pre-login commands are rewritten, to corrupt session memory and crash the session.

Record
CVE-2026-119146
CVSS 4.0
6.3 MediumCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
Weakness
CWE-120
Updated
2026-11-05
OSVDEBIAN-CVE-2026-119146 6.3

ProFTPD before 1.3.9e and 1.3.10rc5 contains a buffer overflow vulnerability in the mod_rewrite int:utf8trans RewriteMap that allows remote attackers to overwrite static buffers. Attackers can send FTP command arguments longer than 1024 bytes, without authentication if pre-login commands are rewritten, to corrupt session memory and crash the session.

Record
DEBIAN-CVE-2026-119146
CVSS 4.0
6.3 MediumCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/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
Updated
2026-11-04
OSVUBUNTU-CVE-2026-119146 6.3

ProFTPD before 1.3.9e and 1.3.10rc5 contains a buffer overflow vulnerability in the mod_rewrite int:utf8trans RewriteMap that allows remote attackers to overwrite static buffers. Attackers can send FTP command arguments longer than 1024 bytes, without authentication if pre-login commands are rewritten, to corrupt session memory and crash the session.

Record
UBUNTU-CVE-2026-119146
CVSS 4.0
6.3 MediumCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
CVSS 3.1
5.6 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Updated
2026-11-05

Affected products

Affected packages

Affected packages
PackageAffectedFixed
proftpd
Alpine:v3.23
 before 1.3.9e-r0
1.3.9e-r0
proftpd
Alpine:v3.24
 before 1.3.9e-r0
1.3.9e-r0
proftpd-dfsg
Debian:12
 All versions, plus listed versions
1.3.8+dfsg-41.3.8+dfsg-4+deb12u11.3.8+dfsg-4+deb12u21.3.8+dfsg-4+deb12u31.3.8+dfsg-4+deb12u4
Show 26 moreShow less
1.3.8+dfsg-4+deb12u51.3.8+dfsg-51.3.8+dfsg-61.3.8+dfsg-71.3.8+dfsg-81.3.8.a+dfsg-11.3.8.b+dfsg-11.3.8.b+dfsg-21.3.8.b+dfsg-31.3.8.b+dfsg-41.3.8.c+dfsg-11.3.8.c+dfsg-21.3.8.c+dfsg-31.3.8.c+dfsg-41.3.9a~dfsg-11.3.9b~dfsg-11.3.9c~dfsg-11.3.9d~dfsg-11.3.9e~dfsg-11.3.9e~dfsg-21.3.9e~dfsg-31.3.9~dfsg-11.3.9~dfsg-21.3.9~dfsg-31.3.9~dfsg-41.3.9~dfsg-5
 None known
proftpd-dfsg
Debian:13
 All versions, plus listed versions
1.3.8.c+dfsg-41.3.8.c+dfsg-4+deb13u11.3.8.c+dfsg-4+deb13u21.3.8.c+dfsg-4+deb13u31.3.9a~dfsg-1
Show 11 moreShow less
1.3.9b~dfsg-11.3.9c~dfsg-11.3.9d~dfsg-11.3.9e~dfsg-11.3.9e~dfsg-21.3.9e~dfsg-31.3.9~dfsg-11.3.9~dfsg-21.3.9~dfsg-31.3.9~dfsg-41.3.9~dfsg-5
 None known
proftpd-dfsg
Debian:14
 before 1.3.9e~dfsg-1, plus listed versions
1.3.8.c+dfsg-41.3.9a~dfsg-11.3.9b~dfsg-11.3.9c~dfsg-11.3.9d~dfsg-1
Show 5 moreShow less
1.3.9~dfsg-11.3.9~dfsg-21.3.9~dfsg-31.3.9~dfsg-41.3.9~dfsg-5
1.3.9e~dfsg-1
proftpd-dfsg
Ubuntu:16.04:LTS
 All versions, plus listed versions
1.3.5-21.3.5a-11.3.5a-1build11.3.5a-1ubuntu0.1
 None known
proftpd-dfsg
Ubuntu:18.04:LTS
 All versions, plus listed versions
1.3.5d-11.3.5e-1build1
 None known
proftpd-dfsg
Ubuntu:20.04:LTS
 All versions, plus listed versions
1.3.6-6build21.3.6c-11.3.6c-21.3.6c-2ubuntu0.1
 None known
proftpd-dfsg
Ubuntu:22.04:LTS
 All versions, plus listed versions
1.3.7b+dfsg-11.3.7c+dfsg-1build11.3.7c+dfsg-1ubuntu0.1
 None known
proftpd-dfsg
Ubuntu:24.04:LTS
 All versions, plus listed versions
1.3.8+dfsg-81.3.8.a+dfsg-11.3.8.b+dfsg-11.3.8.b+dfsg-1build11.3.8.b+dfsg-1build21.3.8.b+dfsg-1build31.3.8.b+dfsg-1ubuntu0.1
 None known
proftpd-dfsg
Ubuntu:26.10
 All versions, plus listed versions
1.3.9~dfsg-41.3.9b~dfsg-11.3.9d~dfsg-1
 None known
proftpd-dfsg
Ubuntu:26.04:LTS
 All versions, plus listed versions
1.3.9~dfsg-31.3.9~dfsg-4
 None known

History

History
RecordedChangedSources
affectedOSV
affected, aliases, referencesEUVD, OSV
factsCVE List
affected, aliases, facts, referencesOSV
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-119146 is a medium vulnerability (CVSS 6.3) in Proftpd, published October 30, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.46%, the 39th percentile. Fixed in proftpd 1.3.9e-r0.

References

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