cannot untaint path

[John DeYoung <sa...@techsuperpowers.com>]

Hi all -

Apologies if this is old hat; I wasn't able to find 
anything useful in my searches.  In the past, I've seen 
messages like this, mostly in logs from sa-learn scripts, 
but recently it's become pretty constant.  I think the 
problem starts with perl, but after that I get lost.  Can 
anyone give me an idea of where to look next to figure out 
what's going on?

util: cannot untaint path: 
"/var/CommuniGate/Domains/domain1.com/accountname.macnt/account.web/.spamassassin/auto-whitelist.lock.mail.domain1.dom
mail.domain2.dom
mail.domain3.dom.11467"

Details:

MacOS X 10.3.9
CommuniGate 4.2.10
CGPSA plugin
perl 5.8.1
SpamAssassin 3.1.7

For what it's worth, the file in question is sometimes 
bayes.lock.domain.dom or another file; I'm also seeing 
comparatively huge CPU time, and processing times are 
hovering around 60 seconds/msg.  I'm assuming it's all 
related, but again, no idea where to start. 
 Interestingly, it lints fine; it just fights when it's 
actually running.

Any pointers are appreciated.

Thanks,
-John.