Symfony Http Foundation vulnerabilities

1 vulnerability

Known vulnerabilities in Symfony Http Foundation, newest first, with CVSS severity, EPSS, KEV listings, ransomware use and the affected versions.

8.6CVE-2026-48736chainguardnextcloud-server-31+11
EPSS score
0.57%
Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 5.4.0 to 5.4.53, 6.4.41, 7.4.13, and 8.0.13, NoPrivateNetworkHttpClient and IpUtils::PRIVATE_SUBNETS omitted IPv6 transition prefixes such as 6to4, NAT64, Teredo, and IPv4-compatible IPv6, allowing attacker-supplied URLs to represent private IPv4 targets in forms that IpUtils::isPrivateIp() did not block. This issue is fixed in versions 5.4.53, 6.4.41, 7.4.13, and 8.0.13.