CVE-2025-6491

CVE-2025-6491 causes a NULL pointer dereference in the PHP SOAP extension when parsing XML data with very large ( >2 GB) XML namespace prefixes, leading to server crashes and potential availability impact. It affects PHP versions across 8.1–8.4 series before patched releases; patched versions ...

CVE-2025-6491 NULL Pointer Dereference in PHP SOAP Extension via Large XML Namespace Prefix

In PHP versions:8.1. before 8.1.33, 8.2. before 8.2.29, 8.3. before 8.3.23, 8.4. before 8.4.10 when parsing XML data in SOAP extensions, overly large 2Gb XML namespace prefix may lead to null pointer dereference. This may lead to crashes and affect the availability of the target server...

BIT-GOLANG-2020-29509

The encoding/xml package in Go all versions does not correctly preserve the semantics of attribute namespace prefixes during tokenization round-trips, which allows an attacker to craft inputs that behave in conflicting ways during different stages of processing in affected downstream applications...

expat: Namespace-separator characters in "xmlns[:prefix]" attribute values can lead to arbitrary code execution

A flaw was found in expat. Passing one or more namespace separator characters in the "xmlns:prefix" attribute values made expat send malformed tag names to the XML processor on top of expat. This issue causes arbitrary code execution depending on how unexpected cases are handled inside the XML...

expat: Namespace-separator characters in "xmlns[:prefix]" attribute values can lead to arbitrary code execution

A flaw was found in expat. Passing one or more namespace separator characters in the "xmlns:prefix" attribute values made expat send malformed tag names to the XML processor on top of expat. This issue causes arbitrary code execution depending on how unexpected cases are handled inside the XML...

GHSA-M9HP-7R99-94H5 Critical security issues in XML encoding in github.com/dexidp/dex

Impact The following vulnerabilities have been disclosed, which impact users leveraging the SAML connector: Signature Validation Bypass CVE-2020-15216: https://github.com/russellhaering/goxmldsig/security/advisories/GHSA-q547-gmf8-8jr7 encoding/xml instabilities: - Element namespace prefix...

CVE-2020-29511

The encoding/xml package in Go all versions does not correctly preserve the semantics of element namespace prefixes during tokenization round-trips, which allows an attacker to craft inputs that behave in conflicting ways during different stages of processing in affected downstream applications...