The Labour leader refused to be bowed, and appointed supporters to fill the vacant spaces as he saw off a challenge to his leadership by Owen Smith, increasing his backing among party members in the process with 61.8% support in the contest.
It also said that the party had failed to provide adequate training to those handling antisemitism complaints and harassed those who complained.
The EHRC report blamed these failings on the Labour leadership, despite a party report leaked earlier this year which suggested that complaints of anti-semitism were deliberately mishandled to sabotage Mr Corbyn's leadership.
Corbyn's rebuttal of the report was swiftly dealt with by Labour leaders, who suspended him from the party pending an investigation. It also removed the whip from Corbyn, and he will no longer be able to take part in House of Commons votes as a Labour lawmaker.
The equality commission also said there was "evidence of political interference in the handling of anti-Semitism complaints", and that the interference was unlawful.
"This is inexcusable and appeared to be a result of a lack of willingness to tackle anti-Semitism rather than an inability to do so", Caroline Waters, interim chair of the EHRC, said.
Keir Starmer, the current leader of the Labour Party, has been offering a more contrite reaction to the commission's review while saying Corbyn's response was "part of the problem".
Kent's only Labour representative - says the report marks a "shameful chapter" in the party's history.
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The decision to suspend him is likely to become a defining moment for Starmer's leadership.
The EHRC found significant evidence of "anti-Semitic conduct" on social media, including examples of Labour members expressing support for Hitler and diminishing the scale of the Holocaust.
And the day when the party built on fighting for equal rights was found to have broken the law created to guard those rights, is no moment of pride.
Corbyn's suspension came after he dismissed the report's findings.
The Campaign Against Antisemitism, which referred Labour to the EHRC, had this morning submitted a complaint to Labour demanding action against Mr Corbyn.
"The Labour Party accepts this report in full and without equivocation", he said, vowing implementation immediately and "in full".
But it stopped short of launching legal proceedings, instead ordering Labour to draft an action plan by December 10 to remedy its failures.
"Corbyn's suspension - and Starmer's words since his election - are a good start, but I'm not going to rejoin until we see how the party does in implementing the changes demanded by EHRC".
The party's "response to anti-Semitism complaints has been inconsistent and lacking in transparency in its process and decision-making", the EHRC added.
The Jewish Labour Movement said blame for the "sordid, disgraceful chapter" in the party's history "lies firmly with those who held positions of leadership".