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CVE-2026-15747 Mojolicious versions from 4.59 before 9.48 for Perl expose a stable representation of the session CSRF token to a BREACH compression oracle

🗓️ 14 Jul 2026 17:07:32Reported by CPANSecType 
cvelist
 cvelist
🔗 www.cve.org👁 29 Views

CVE-2026-15747: Mojolicious exposes a cached session CSRF token to a BREACH compression oracle.

Related
Affected
Refs
[
  {
    "collectionURL": "https://cpan.org/modules",
    "defaultStatus": "unaffected",
    "packageName": "Mojolicious",
    "product": "Mojolicious",
    "programFiles": [
      "lib/Mojolicious/Plugin/DefaultHelpers.pm",
      "lib/Mojolicious/Plugin/TagHelpers.pm",
      "lib/Mojolicious/Renderer.pm"
    ],
    "programRoutines": [
      {
        "name": "Mojolicious::Plugin::DefaultHelpers::_csrf_token"
      }
    ],
    "repo": "https://github.com/mojolicious/mojo",
    "vendor": "SRI",
    "versions": [
      {
        "lessThan": "9.48",
        "status": "affected",
        "version": "4.59",
        "versionType": "custom"
      }
    ]
  }
]

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