Labour could be bankrupted by lawsuits after an antisemitism report compiled by allies of former party leader Jeremy Cobyn was leaked to the public.

The 860-page document had been intended as a submission to the Equality and Human Rights Commission's investigation into claims of antisemitism in Labour, and named a number of individuals who had made official complaints about Jew-hate in the party.

After Labour’s own lawyers advised the party not to submit the document to the EHRC, it was circulated on social media containing the unredacted names of numerous whistleblowers.

Sources close to those complainants say more than 30 individuals may sue the party over breach of privacy and for putting their safety at risk. 

Labour could face a legal bill as high as £8 million over the leak, which could bankrupt the party, according to the sources.

Corbyn loyalists have claimed the leaked document shows how "Blairite" officials in the party actively worked against him and prevented Labour winning the 2017 General Election. 

Party moderates argue the document was leaked by supporters of Mr Corbyn in an attempt to distract from the mishandling of antisemitism complaints. 

Mark Lewis of law firm Patron Law, who is representing 20 of the people affected, said: “If this bankrupts the Labour Party or individuals, so be it. Actions have consequences. 

“There are lots and lots of claims. There are claims under the Data Protection Act, there are claims for breach of confidence or invasion of privacy and there are claims for libel."