On Wed, Jan 07, 2026 at 08:58:15AM +0100, Marc Haber wrote:
This is even worse now, chpasswd won't accept a perfectly valid yescrypt hash:

$ echo 9hKGOX79oaP4FEhQ2xQ6wLvPXsTTUtPiYu4QCXsc | mkpasswd --hash=yescrypt 
--stdin
$y$j9T$VPuG6eC6CTZG7fxHR1YwP0$kZeswr5rIJKCXbeLvE/R412AO4vB1HLwuBrqg1nnPU4
# echo 
"aust:$y$j9T$VPuG6eC6CTZG7fxHR1YwP0$kZeswr5rIJKCXbeLvE/R412AO4vB1HLwuBrqg1nnPU4"
 | chpasswd --encrypted
chpasswd: (line 1, user aust) invalid password hash
chpasswd: error detected, changes ignored

I think that would now warrant Severity: serious.

# echo "aust:*" | chpasswd --encrypted
chpasswd: (line 1, user aust) invalid password hash
chpasswd: error detected, changes ignored


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