Same here on my bridge:
    Nov  2 06:21:04 raspipfupf Tor[2556]: Possible zlib bomb;
      abandoning stream.
      Nov  2 06:21:04 raspipfupf Tor[2556]: Possible zlib bomb;
      abandoning stream.
    Time is UTC+1, nothing before and after
    Cheers, Christoph
    
    On 02.11.20 11:05, Guinness wrote:
    
    
  
   
  Hi all,
We
 are at least 3 users running middle relays from 0.4.4.5 and after 
having
some logs like those :
```
Nov 02 05:30:55.000 [warn] 
Possible compression bomb; abandoning stream.
Nov 02 05:30:55.000 
[warn] Possible zlib bomb; abandoning stream.
Nov 02 05:30:56.000 
[warn] Possible compression bomb; abandoning stream.
Nov 02 
05:31:00.000 [warn] Possible compression bomb; abandoning stream.
Nov
 02 05:31:00.000 [warn] Possible compression bomb; abandoning stream.
Nov
 02 05:31:00.000 [warn] Possible compression bomb; abandoning stream.
Nov
 02 05:31:55.000 [warn] Possible compression bomb; abandoning stream.
Nov
 02 05:31:56.000 [warn] Possible compression bomb; abandoning stream.
```
I'm
 wondering if this is an attack or a new feature (haven't checked
yet)
 but I'd like to know how many users are impacted.
The 
interesting informations are :
 * Number of warnings
 * What kind 
of relay it is (middle, exit, entry)
After your answers, I'll 
complete the issue I have opened on the bug
tracker.
Cheers,