Yaml

This hub aggregates every CVE we track for Yaml, a product in the oss libraries space. Use it to gauge the current risk picture and drill into individual advisories.

Severity distribution

Monthly trend

The 9 most recently published vulnerabilities affecting Yaml.

• CVE-2026-45305Symfony: YAML Parser ReDoS via Catastrophic Backtracking in Parser::cleanup() Regex7.5Jul 14, 2026
• CVE-2026-45304Symfony: YAML Parser Exponential Memory Allocation via Recursive Collection-Alias Expansion ("Billion Laughs")7.5Jul 14, 2026
• CVE-2026-33532yaml is vulnerable to Stack Overflow via deeply nested YAML collections4.3Mar 26, 2026
• CVE-2026-4177YAML::Syck versions through 1.36 for Perl has several potential security vulnerabilities including a high-severity heap buffer overflow in the YAML emitter9.1Mar 16, 2026
• CVE-2023-2251Uncaught Exception in eemeli/yaml7.5Apr 24, 2023
• CVE-2022-3064Excessive resource consumption in gopkg.in/yaml.v27.5Dec 27, 2022
• CVE-2021-4235Denial of service in gopkg.in/yaml.v25.5Dec 27, 2022
• CVE-2022-28948An issue in the Unmarshal function in Go-Yaml v3 causes the program to crash when attempting to deserialize invalid input.7.5May 19, 2022
• CVE-2012-1152Multiple format string vulnerabilities in the error reporting functionality in the YAML::LibYAML (aka YAML-LibYAML and perl-YAML-LibYAML) module 0.38 for Perl allow remote attackers to cause a deni...5.0Sep 9, 2012