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1 vulnerability found for Mojo::JSON by SRI

CVE-2026-14803 (GCVE-0-2026-14803)
Vulnerability from cvelistv5
Published
2026-07-06 01:34
Modified
2026-07-06 18:51
CWE
Summary
Mojo::JSON versions before 9.47 for Perl allow memory exhaustion via unbounded recursion in the pure-Perl decoder. The pure-Perl decode path (`_decode_value` dispatching to `_decode_array` and `_decode_object`) recurses with no depth limit, so a small deeply nested JSON document can consume excessive memory. This path is the default when Cpanel::JSON::XS is not installed or `MOJO_NO_JSON_XS=1` is set; the Cpanel::JSON::XS fast path is not affected. Any caller that decodes an untrusted JSON body, for example `Mojo::Message::json` reached through `$c->req->json`, can exhaust process memory and cause denial of service.
Impacted products
Vendor Product Version
SRI Mojo::JSON Version: 0   < 9.47
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              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
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          "defaultStatus": "unaffected",
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          "value": "Mojo::JSON versions before 9.47 for Perl allow memory exhaustion via unbounded recursion in the pure-Perl decoder.\n\nThe pure-Perl decode path (`_decode_value` dispatching to `_decode_array` and `_decode_object`) recurses with no depth limit, so a small deeply nested JSON document can consume excessive memory.\n\nThis path is the default when Cpanel::JSON::XS is not installed or `MOJO_NO_JSON_XS=1` is set; the Cpanel::JSON::XS fast path is not affected.\n\nAny caller that decodes an untrusted JSON body, for example `Mojo::Message::json` reached through `$c-\u003ereq-\u003ejson`, can exhaust process memory and cause denial of service."
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        "orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
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      "references": [
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          "tags": [
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          "url": "https://github.com/mojolicious/mojo/commit/cc38b0554275c4d84f6b8b49bcbbc1bec2068fe1.patch"
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          "tags": [
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          "url": "https://metacpan.org/release/SRI/Mojolicious-9.47/changes"
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          "lang": "en",
          "value": "Upgrade to Mojolicious 9.47 or later."
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      "source": {
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          "lang": "en",
          "time": "2026-07-05T00:00:00.000Z",
          "value": "Version 9.47 released with fix."
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      "title": "Mojo::JSON versions before 9.47 for Perl allow memory exhaustion via unbounded recursion in the pure-Perl decoder",
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          "value": "Where upgrading is not possible, install Cpanel::JSON::XS in the include path and leave `MOJO_NO_JSON_XS` unset."
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