The Open Source Technology Improvement Fund has announced the
completion of a security audit of the Git source.

For this portion of the research a total of 35 issues were
discovered, including 2 critical severity findings and a high
severity finding. Additionally, because of this research, a number
of potentially catastrophic security bugs were discovered and
resolved internally by the git security team.

See the
full report for all the details.

Source: LWN.net – A security audit of Git