On 27 January 2018, Urubko along with Adam Bielecki - while taking part in the Krzysztof Wielicki led Polish winter expedition on K2 - led a rescue operation on Nanga Parbat to save climbers Élisabeth Revol and Tomasz Mackiewicz, who were stuck on the mountain.

Bielecki and Urubko were brought to the mountain by helicopter and climbed over 1000m through the night to reach Revol.

[4] They succeeded in bringing Revol to safety, but, were unable to save Mackiewicz due to the severe weather conditions.

Then in an unauthorized solo attempt, Denis Urubko reported that he probably reached up to 7600m[7] having drawn criticism from his fellow climbers.

After 14 days, on 1 August 2019 at 8:40 pm, he reached the summit of Gasherbrum II again via a new route without supplemental oxygen.