All vulnerabilities

Servers and applications

CVE-2026-109413

Unbounded Recursion in the YAML Inline Lexer Lets a Single Document Crash the Process

Severity
High 8.7
Published
15 Oct 2026
Last changed
15 Oct 2026
Added to UpHeron
3 Nov 2026
Fixed in
5.4.54, 6.4.45, 7.4.18, 8.1.6
Also known as
GHSA-2v3c-qxhr-7vpv
Sources
Project advisories (GitHub)

Affected software

SoftwareAffected versions
SymfonyServers and applications · github:symfony/symfony
  • Every version before 5.4.54
  • From 6 before 6.4.45
  • From 7 before 7.4.18
  • From 8 before 8.1.6

References