[Pkg-utopia-maintainers] Bug#1146358: polkit-agent-helper-1: error response to PolicyKit daemon: GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: No session for cookie
Stepan
dabonatan at proton.me
Mon Aug 31 19:44:24 BST 2026
Package: pkexec
Version: 127-3
Severity: important
Tags: upstream
X-Debbugs-Cc: dabonatan at proton.me
Dear Maintainer,
When trying to run synaptic-pkexec, the authentication doesn't work; met
with the following error:
```
** (process:4867): WARNING **: 19:38:27.478: Unknown line 'polkit-agent-helper-1: error response to PolicyKit daemon: GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: No session for cookie' from helper
==== AUTHENTICATION FAILED ====
Error executing command as another user: Not authorized
This incident has been reported.
```
I found this issue on github:
https://github.com/polkit-org/polkit/issues/686, so it is known to the
upstream developers, and I am reporting it to let know that it does
affect the current version in debian testing. Downgrading from 127-3 to
126-2 did fix it.
-- System Information:
Debian Release: forky/sid
APT prefers testing
APT policy: (900, 'testing'), (800, 'unstable')
Architecture: amd64 (x86_64)
Kernel: Linux 7.1.8+deb14.1-amd64 (SMP w/8 CPU threads; PREEMPT)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages pkexec depends on:
ii libc6 2.43-3
ii libglib2.0-0t64 2.89.4-2
ii libpam0g 1.7.0-8
ii libpolkit-agent-1-0 127-3
ii libpolkit-gobject-1-0 127-3
ii polkitd 127-3
pkexec recommends no packages.
pkexec suggests no packages.
Versions of packages pkexec is related to:
pn elogind <none>
pn libpam-elogind <none>
ii libpam-systemd 261.2-1
ii systemd 261.2-1
-- no debconf information
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