[CVE-2020-16250] Unexpected security footguns in Go's parsers
blog.trailofbits.com | blog | CVE-2020-16250 | #authentication-bypass | #deserialization | #go | #json | #xml | #yaml | #parsers | #cve-2020-16250
Summary
Unexpected behaviors in Go's JSON, XML, and YAML parsers let attackers bypass authentication, evade authorization, and exfiltrate data—seen in HashiCorp Vault's CVE-2020-16250 and real engagements.
- CVE
- CVE-2020-16250
- Published
- Collected
--- id: 1389 title: "[CVE-2020-16250] Unexpected security footguns in Go's parsers" cve: CVE-2020-16250 source_domain: blog.trailofbits.com source_url: "https://blog.trailofbits.com/2025/06/17/unexpected-security-footguns-in-gos-parsers/" published_at: "2025-06-18 11:00" tags: ["authentication-bypass", "deserialization", "go", "json", "xml", "yaml", "parsers", "cve-2020-16250"] phying_url: "https://phying.com/item/1389" lang: en --- # [CVE-2020-16250] Unexpected security footguns in Go's parsers ## Summary Unexpected behaviors in Go's JSON, XML, and YAML parsers let attackers bypass authentication, evade authorization, and exfiltrate data—seen in HashiCorp Vault's CVE-2020-16250 and real engagements. ## Intelligence Metadata - **Sources:** blog.trailofbits.com - **CVE:** CVE-2020-16250 - **Published:** 2025-06-18 11:00 - **Original:** https://blog.trailofbits.com/2025/06/17/unexpected-security-footguns-in-gos-parsers/ - **Phying News:** https://phying.com/item/1389