CVE-2026-48736 (GCVE-0-2026-48736)
Vulnerability from cvelistv5
Published
2026-07-14 19:09
Modified
2026-07-15 13:23
Severity ?
6.9 (Medium) - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N
CWE
  • CWE-184 - Incomplete List of Disallowed Inputs
  • CWE-918 - Server-Side Request Forgery (SSRF)
Summary
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.
References
Impacted products
Vendor Product Version
symfony symfony Version: >= 5.4.0, < 5.4.53
Version: >= 6.0.0-BETA1, < 6.4.41
Version: >= 7.0.0-BETA1, < 7.4.13
Version: >= 8.0.0-BETA1, < 8.0.13
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   symfony http-client Version: >= 5.4.0, < 5.4.53
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   symfony http-foundation Version: >= 6.0.0-BETA1, < 6.4.41
Version: >= 7.0.0-BETA1, < 7.4.13
Version: >= 8.0.0-BETA1, < 8.0.13
 Create a notification for this product.
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