fail2ban - Debian Package Tracker

general

source: fail2ban (main)
version: 1.1.1-1
maintainer: Debian Python Team (DMD)
uploaders: Yaroslav Halchenko [DMD] – Sylvestre Ledru [DMD]
arch: all
std-ver: 4.7.4
VCS: Git (Browse, QA)

versions [more versions can be listed by madison] [old versions available from snapshot.debian.org]

[pool directory]

o-o-stable: 0.11.2-2
oldstable: 1.0.2-2
stable: 1.1.0-8
testing: 1.1.1-1
unstable: 1.1.1-1

versioned links

0.11.2-2: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
1.0.2-2: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
1.1.0-8: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
1.1.1-1: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]

binaries

fail2ban (59 bugs: 0, 44, 15, 0)

action needed

1 security issue in sid high

There is 1 open security issue in sid.

1 important issue:

CVE-2026-109786: In fail2ban 0.10.5 through 1.1.1 before ddd879d, the sshd filter (config/filter.d/sshd.conf) accepts an "on <token>" suffix after the host address. Because OpenSSH logs the offered username verbatim, a remote unauthenticated attacker can use a username such as "x VICTIM-SOURCE-IP-ADDRESS on" to make fail2ban associate failed login attempts with an arbitrary source IP address and ban it (e.g., to block logins from a legitimate user). The default filter mode is affected.

Created: 2026-10-13 Last update: 2026-10-18 08:32

1 security issue in forky high

There is 1 open security issue in forky.

1 important issue:

CVE-2026-109786: In fail2ban 0.10.5 through 1.1.1 before ddd879d, the sshd filter (config/filter.d/sshd.conf) accepts an "on <token>" suffix after the host address. Because OpenSSH logs the offered username verbatim, a remote unauthenticated attacker can use a username such as "x VICTIM-SOURCE-IP-ADDRESS on" to make fail2ban associate failed login attempts with an arbitrary source IP address and ban it (e.g., to block logins from a legitimate user). The default filter mode is affected.

Created: 2026-10-13 Last update: 2026-10-18 08:32

4 bugs tagged patch in the BTS normal

The BTS contains patches fixing 4 bugs, consider including or untagging them.

Created: 2026-09-02 Last update: 2026-10-19 01:30

1 new commit since last upload, is it time to release? normal

vcswatch reports that this package seems to have new commits in its VCS but has not yet updated debian/changelog. You should consider updating the Debian changelog and uploading this new version into the archive.

Here are the relevant commit logs:

commit e230c2f1474d5cc1e9c64f585dc7492a9fa589d8
Author: Alexandre Detiste <alexandre.detiste@gmail.com>
Date:   Fri Sep 25 22:14:31 2026 +0200

    do not commit d/files

Created: 2026-09-25 Last update: 2026-10-17 00:02

1 open merge request in Salsa normal

There is 1 open merge request for this package on Salsa. You should consider reviewing and/or merging these merge requests.

Created: 2026-10-03 Last update: 2026-10-03 22:31

1 low-priority security issue in trixie low

There is 1 open security issue in trixie.

1 issue left for the package maintainer to handle:

CVE-2026-109786: (needs triaging) In fail2ban 0.10.5 through 1.1.1 before ddd879d, the sshd filter (config/filter.d/sshd.conf) accepts an "on <token>" suffix after the host address. Because OpenSSH logs the offered username verbatim, a remote unauthenticated attacker can use a username such as "x VICTIM-SOURCE-IP-ADDRESS on" to make fail2ban associate failed login attempts with an arbitrary source IP address and ban it (e.g., to block logins from a legitimate user). The default filter mode is affected.

You can find information about how to handle this issue in the security team's documentation.

Created: 2026-10-13 Last update: 2026-10-18 08:32

debian/patches: 3 patches to forward upstream low

Among the 8 debian patches available in version 1.1.1-1 of the package, we noticed the following issues:

3 patches where the metadata indicates that the patch has not yet been forwarded upstream. You should either forward the patch upstream or update the metadata to document its real status.

Created: 2023-02-26 Last update: 2026-09-19 18:32

news

[rss feed]

[2026-09-22] fail2ban 1.1.1-1 MIGRATED to testing (Debian testing watch)
[2026-09-19] Accepted fail2ban 1.1.1-1 (source) into unstable (Dale Richards) (signed by: Alexandre Detiste)
[2026-08-02] fail2ban 1.1.0-11 MIGRATED to testing (Debian testing watch)
[2026-07-29] Accepted fail2ban 1.1.0-11 (source) into unstable (Alexandre Detiste)
[2026-05-18] fail2ban 1.1.0-10 MIGRATED to testing (Debian testing watch)
[2026-05-06] Accepted fail2ban 1.1.0-10 (source) into unstable (Alexandre Detiste)
[2025-12-24] fail2ban 1.1.0-9 MIGRATED to testing (Debian testing watch)
[2025-12-21] Accepted fail2ban 1.1.0-9 (source) into unstable (Stefano Rivera)
[2025-05-19] fail2ban 1.1.0-8 MIGRATED to testing (Debian testing watch)
[2025-05-09] Accepted fail2ban 1.1.0-8 (source) into unstable (Colin Watson)
[2024-09-06] fail2ban 1.1.0-7 MIGRATED to testing (Debian testing watch)
[2024-09-01] Accepted fail2ban 1.1.0-7 (source) into unstable (Sylvestre Ledru)
[2024-08-22] fail2ban 1.1.0-6 MIGRATED to testing (Debian testing watch)
[2024-08-17] Accepted fail2ban 1.1.0-6 (source) into unstable (Sylvestre Ledru)
[2024-06-01] fail2ban 1.1.0-4 MIGRATED to testing (Debian testing watch)
[2024-05-25] Accepted fail2ban 1.1.0-4 (source) into unstable (Sylvestre Ledru)
[2024-05-25] Accepted fail2ban 1.1.0-3 (source) into unstable (Sylvestre Ledru)
[2024-05-16] Accepted fail2ban 1.1.0-2 (source) into unstable (Sylvestre Ledru)
[2024-05-02] Accepted fail2ban 1.1.0-1 (source) into unstable (Sylvestre Ledru)
[2024-03-28] fail2ban 1.0.2-3 MIGRATED to testing (Debian testing watch)
[2024-03-23] fail2ban REMOVED from testing (Debian testing watch)
[2024-01-08] fail2ban 1.0.2-3 MIGRATED to testing (Debian testing watch)
[2024-01-02] Accepted fail2ban 1.0.2-3 (source) into unstable (Sylvestre Ledru)
[2023-04-27] fail2ban 1.0.2-2 MIGRATED to testing (Debian testing watch)
[2023-04-21] Accepted fail2ban 1.0.2-2 (source) into unstable (Jochen Sprickerhof)
[2022-11-15] fail2ban 1.0.2-1 MIGRATED to testing (Debian testing watch)
[2022-11-15] fail2ban 1.0.2-1 MIGRATED to testing (Debian testing watch)
[2022-11-09] Accepted fail2ban 1.0.2-1 (source) into unstable (Sylvestre Ledru)
[2022-09-28] Accepted fail2ban 1.0.1-1~exp1 (source) into experimental (Sylvestre Ledru)
[2022-03-16] fail2ban 0.11.2-6 MIGRATED to testing (Debian testing watch)

bugs [bug history graph]

all: 60 61
RC: 0
I&N: 46
M&W: 14 15
F&P: 0
patch: 4
NC: 1

links

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ubuntu

[Information about Ubuntu for Debian Developers]

version: 1.1.0-11
49 bugs