Based on everything in the wiki, De'Zhaun Stribling does not have an injury himself. He's been healthy and active throughout camp and the preseason.
The confusion might come from the fact that other 49ers' injuries have boosted his opportunity:
- Christian Kirk suffered a calf strain early in camp, opening reps
- Ricky Pearsall went on season-ending IR with a PCL knee injury, clearing the path further
Those injuries helped vault Stribling into the WR3 role behind Mike Evans and Deebo Samuel (from the De'Zhaun Stribling page). Stribling is fully healthy and ready to go for Week 1.