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| Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
|---|---|---|---|
| ezsystems/ezplatform-http-cache | composer | < 2.3.16 | 2.3.16 |
The vulnerability stems from Varnish VCL templates enabling compression for content types carrying sensitive data (JSON/API responses). The commit diff shows removal of 'application/json' and 'application/vnd.ez.api' from compression conditions in both varnish5.vcl and varnish7.vcl files. These subroutines control response handling, and their compression of secret-bearing content types created a BREACH attack surface. The direct correlation between the patch changes and vulnerability description confirms these as the vulnerable points.
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