All vulnerabilities

Servers and applications

GHSA-pxj9-jh84-vhm5

DataUriNormalizer Opens Data URIs With a Non-Lowercase Scheme as Local Files, Letting a Client Read Any Server File

Severity
High
Published
4 Nov 2026
Last changed
4 Nov 2026
Added to UpHeron
4 Nov 2026
Fixed in
5.4.56, 6.4.50, 7.4.23, 8.1.11
Sources
Project advisories (GitHub)

Affected software

SoftwareAffected versions
SymfonyServers and applications · github:symfony/symfony
  • Every version before 5.4.56
  • From 6 before 6.4.50
  • From 7 before 7.4.23
  • From 8 before 8.1.11

References