A denial of service via regular expression in the py.path.svnwc component of py (aka python-py) through 1.9.0 could be used by attackers to cause a compute-time denial of service attack by supplying malicious input to the blame functionality.
github.com/pytest-dev/py
github.com/pytest-dev/py/issues/256
github.com/pytest-dev/py/pull/257
github.com/pytest-dev/py/pull/257/commits/4a9017dc6199d2a564b6e4b0aa39d6d8870e4144
lists.fedoraproject.org/archives/list/[email protected]/message/AYWNYEV3FGDHPIHX4DDUDMFZ6NLCQRC4
lists.fedoraproject.org/archives/list/[email protected]/message/CHDTINIBJZ67T3W74QTBIY5LPKAXEOGR
nvd.nist.gov/vuln/detail/CVE-2020-29651
www.oracle.com/security-alerts/cpujul2022.html