yes, I'm planning to come too. Can't wait to drink beer -- I mean
discuss SECURITY

On Mon, Aug 31, 2026 at 2:52 PM Michael McCandless
<[email protected]> wrote:
>
> I'm also planning to attend CoC Glasgow and would love to join the hackathon, 
> time/talks permitting!
>
> A few more of us (from Amazon customer facing product search team, using 
> Lucene to search all of Amazon's fast-changing catalog) are hoping/planning 
> to come too...
>
> Mike McCandless
>
> http://blog.mikemccandless.com
>
> On Thu, Aug 20, 2026 at 5:36 AM Uwe Schindler via dev <[email protected]> 
> wrote:
>>
>> Hi,
>>
>> I will also be there. I'd like to discuss a bit about a SECURITY.md in our 
>> repository and some ideas what we should treat as security vulnerability and 
>> what not. Not only about idex files and possibly missing checks in public 
>> APIs. Also with regards to XML queryparser, serialization and so on - 
>> although those are mot of the cases security related and should be fixed.
>>
>> The reason why I am bringing that up: We recently got many - and rejected 
>> security issues from people forcefully flipping specific bits and bytes in a 
>> Lucene index file (and also fixing the checksum) and later said: "Theres a 
>> DOS attack because of an infinite loop while reading that file." We all know 
>> that we often cannot do checks at every possibly entry point and our code 
>> trusts that the index/codec file format is sane. Of course we can improve 
>> that, but only without affecting performance. Therefore I'd like to mock up 
>> a SECUIRTY.md file for the Lucene repo where we clearly say that an index 
>> file must be coming from a trusted location and unauthorized modifications 
>> on index files should be prevented by the downstream application (like 
>> Elasticsearch/Solr doing a full cryptographic handshake when transferring 
>> files over the network).
>>
>> I'd like to discuss and maybe hack a bit. So your inviation is great! And 
>> some (many) beers are important, too!
>>
>> Uwe
>>
>> Am 19.08.2026 um 06:08 schrieb Sagar Upadhyay:
>>
>> Hello,
>>
>> I am also coming to CoC Glasgow for a talk and would be really interested in 
>> this!
>>
>> ~ Sagar
>>
>> On Tue, Aug 18, 2026, 7:27 AM Alan Woodward <[email protected]> wrote:
>>>
>>> Hi everyone,
>>>
>>> I’ve just signed up for CoC in Glasgow this October, and I see that there 
>>> is already a proposal for a Solr hackathon on the Monday.  Would anybody be 
>>> interested in a parallel Lucene group as well?  In the past these have been 
>>> fun opportunities to meet up with other committers and contributors and to 
>>> brainstorm  future ideas as well as work together on bug fixes and new 
>>> features.  If enough people think it’s worth it I can try and set something 
>>> up.
>>>
>>> - Alan
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>>>
>> --
>> Uwe Schindler
>> Achterdiek 19, D-28357 Bremen
>> https://www.thetaphi.de
>> eMail: [email protected]

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