Giliomee was sent off during the defending champions' 32-22 win in Tbilisi on Monday for an aerial challenge on England fullback George Pearson.
The incident was reviewed by a three-person disciplinary panel, which included former Springbok wing Stefan Terblanche, after World Rugby's Foul Play Review Committee referred the matter for a full hearing.
“The FPRC decided to refer the matter to a disciplinary committee for a full hearing, which took place on Thursday, 16 July 2026,” World Rugby said.
“The committee was chaired by Helen Morgan [New Zealand], joined by former players Stefan Terblanche [South Africa] and Christopher Morgan [Wales].
“Having considered all available evidence and the player's submissions, the committee decided that the incident did not involve foul play and therefore they decided to dismiss the red card.
“The player is free to play with immediate effect.”
The ruling means Giliomee is available for selection as the Junior Boks attempt to defend their title against France at the Mikheil Meskhi Stadium in Tbilisi on Saturday.
The 20-year-old utility back's rapid rise has been one of the standout stories in South African rugby in 2026. In just a few months, he earned a call-up to the Blitzboks, made his senior debut for the Sharks in the URC, represented the Junior Springboks, and featured for South Africa 'A'.
Junior Springbok captain Siphosethu Mnebele and flyhalf Yaqeen Ahmed are feeling well-prepared for their Junior World Championship final against France on Saturday night in Tsbilisi.
Junior Springbok coach Kevin Foote has made three changes to the side that defeated England in the Junior World Championship semi-final for Saturday's final against France in Tbilisi.
Junior Springbok assistant coach Melusi Mthethwa praised the composure of his side after they fought back from an eight-point deficit to beat England and book their place in the Junior World Championship final against France.
Junior Springbok coach Kevin Foote praised the maturity and resilience of his squad after they booked their place in a second successive U20 Championship final with a hard-fought 53-37 victory over England in Tbilisi.
