Thumbor treats ALLOWED_SOURCES string patterns as unescaped regex, allowing hostname bypass via wildcard dot

SummaryThe ALLOWEDSOURCES configuration is meant to restrict which hosts Thumbor's HTTP loader may fetch images from. Plain-string entries in that list the overwhelming majority of real-world and documented configurations are passed directly to re.match without escaping. Because . is a regex...

Thumbor treats ALLOWED_SOURCES string patterns as unescaped regex, allowing hostname bypass via wildcard dot

Summary The ALLOWEDSOURCES configuration is meant to restrict which hosts Thumbor's HTTP loader may fetch images from. Plain-string entries in that list the overwhelming majority of real-world and documented configurations are passed directly to re.match without escaping. Because . is a regex...

CVE-2026-53500

Thumbor (open-source image service by globo.com) is affected prior to version 7.8.0 where ALLOWED_SOURCES is applied by re.match() to unescaped strings, enabling a hostname with dot-position differences to bypass the allowlist. Root cause: unescaped patterns treated as normal strings in a regex m...

VMware Spring Security 授权问题漏洞

VMware Spring Security is a security framework from VMware that provides illustrative security protections for Spring-based applications. An authorization issue vulnerability exists in VMware Spring Security that stems from the use of RegexRequestMatcher and the wildcard . character of a regular...

CVE-2009-2456: Undefined Security Weakness

The DS\NDSD component in Novell eDirectory 8.8 before SP5 allows remote attackers to cause a denial of service ndsd core dump via an LDAP request containing multiple . dot wildcard characters in the Relative Distinguished Name RDN...