An issue was discovered in the ammonia crate before 2.1.0 for Rust. There is uncontrolled recursion during HTML DOM tree serialization.

References

• https://nvd.nist.gov/vuln/detail/CVE-2019-15542
• https://github.com/rust-ammonia/ammonia/blob/master/CHANGELOG.md#210
• https://rustsec.org/advisories/RUSTSEC-2019-0001.html