The proof-of-concept code was published on the Full-disclosure mailing list with the subject line “Trick or treat Larry,” an obvious taunt aimed at Oracle Corp.s chief executive Larry Ellison.

Oracle Corp. appears to have accidentally released details about an unpatched security vulnerability in its database software, including sample code that could be used to exploit the problem.

Artificial intelligence that rewrites code and can reprogram old apps into newer formats is lowering the cost of switching enterprise software providers and is poised to help companies tackle ...