View at Official debian advisory, NVD, CVE.org · CVE detail
Freshness: upstream tracker timestamp is available; use API updated time as primary recency signal.
CVE-2021-4235 not yet assigned priority: Debian including 1 source packages (golang-yaml.v2), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5.
Due to unbounded alias chasing, a maliciously crafted YAML file can cause the system to consume significant system resources. If parsing user input, this may be used as a denial of service vector.