7.5
High
CVE-2026-26278 fast-xml-parser allows users to validate XML, parse XML to JS object, or build XML from JS object without C/C++ based…
Description
fast-xml-parser allows users to validate XML, parse XML to JS object, or build XML from JS object without C/C++ based libraries and no callback. In versions 4.1.3 through 5.3.5, the XML parser can be forced to do an unlimited amount of entity expansion. With a very small XML input, it’s possible to make the parser spend seconds or even minutes processing a single request, effectively freezing the application. Version 5.3.6 fixes the issue. As a workaround, avoid using DOCTYPE parsing by `processEntities: false` option.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat Advanced Cluster Security for Kubernetes 4.8 1775594119 | earliest → < 1775594119 | 1775594119 |
| Red Hat Advanced Cluster Security for Kubernetes 4.9 1775594284 | earliest → < 1775594284 | 1775594284 |
| Red Hat Developer Hub 1.8 1774545605 | earliest → < 1774545605 | 1774545605 |
| Red Hat Developer Hub 1.9 1775140647 | earliest → < 1775140647 | 1775140647 |
| Migration Toolkit for Applications 8 | Versions not published | |
| Red Hat Openshift Data Foundation 4 | Versions not published | |
| Red Hat OpenShift GitOps | Versions not published | |
| Red Hat OpenShift Virtualization 4 | Versions not published | |
| Red Hat Satellite 6 | Versions not published |
Show the 10 other branches Hide the 10 other branches
| Product | Affected versions | Fixed in |
|---|---|---|
| Self-service automation portal 2 | Versions not published | |
| fast-xml-parser 5.0 | 5.0.0 → < 5.3.6 | 5.3.6 |
| fast-xml-parser 4.1 | 4.1.3 → < 4.5.4 | 4.5.4 |
| Red Hat Openshift Data Foundation 4.20 1783669219 | earliest → < 1783669219 | 1783669219 |
| Red Hat Advanced Cluster Security 4.8 1775594119 | earliest → < 1775594119 | 1775594119 |
| Red Hat Advanced Cluster Security 4.9 1775594284 | earliest → < 1775594284 | 1775594284 |
| Red Hat Openshift Data Foundation 4.2 1783669219 | earliest → < 1783669219 | 1783669219 |
| Red Hat Openshift Data Foundation 4.18 1783677533 | earliest → < 1783677533 | 1783677533 |
| Red Hat Openshift Data Foundation 4.19 1783685375 | earliest → < 1783685375 | 1783685375 |
| Red Hat Satellite 6.18 1785922764 | earliest → < 1785922764 | 1785922764 |
References
- github.com github.com
- github.com github.com
- github.com github.com
Timeline
- Published
- Last modified
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