Common Weakness Enumeration

CWE-674

Allowed-with-Review

Uncontrolled Recursion

Abstraction: Class · Status: Draft

API response cwe.mitre.org

The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack.

616 vulnerabilities reference this CWE, most recent first.

GHSA-C464-P6XP-R3MM

Vulnerability from github – Published: 2026-06-04 12:30 – Updated: 2026-06-04 12:30
VLAI
Details

Uncontrolled Recursion vulnerability in Samsung Open Source rlottie allows Oversized Serialized Data Payloads.

This issue affects rlottie: before e2d19e3b150e0e4a9586fa90b56fd3061cc98945.

Severity
6.1 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2026-47306"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-674"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-04T10:16:38Z",
    "severity": "MODERATE"
  },
  "details": "Uncontrolled Recursion vulnerability in Samsung Open Source rlottie allows Oversized Serialized Data Payloads.\n\nThis issue affects rlottie: before e2d19e3b150e0e4a9586fa90b56fd3061cc98945.",
  "id": "GHSA-c464-p6xp-r3mm",
  "modified": "2026-06-04T12:30:25Z",
  "published": "2026-06-04T12:30:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-47306"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Samsung/rlottie/pull/585"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-C53C-XHHC-3HPJ

Vulnerability from github – Published: 2022-05-13 01:36 – Updated: 2022-05-13 01:36
VLAI
Details

poppler through version 0.55.0 is vulnerable to an uncontrolled recursion in pdfunite resulting into potential denial-of-service.

Severity
5.5 (Medium)
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2017-7515"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-674"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-06-06T14:29:00Z",
    "severity": "MODERATE"
  },
  "details": "poppler through version 0.55.0 is vulnerable to an uncontrolled recursion in pdfunite resulting into potential denial-of-service.",
  "id": "GHSA-c53c-xhhc-3hpj",
  "modified": "2022-05-13T01:36:19Z",
  "published": "2022-05-13T01:36:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-7515"
    },
    {
      "type": "WEB",
      "url": "https://bugs.freedesktop.org/show_bug.cgi?id=101208"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-C6V9-VW5H-VQRM

Vulnerability from github – Published: 2024-05-14 18:30 – Updated: 2024-08-16 18:30
VLAI
Details

HDF5 Library through 1.14.3 allows stack consumption in the function H5E_printf_stack in H5Eint.c.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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{
  "affected": [],
  "aliases": [
    "CVE-2024-32609"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-674"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-14T15:36:45Z",
    "severity": "HIGH"
  },
  "details": "HDF5 Library through 1.14.3 allows stack consumption in the function H5E_printf_stack in H5Eint.c.",
  "id": "GHSA-c6v9-vw5h-vqrm",
  "modified": "2024-08-16T18:30:56Z",
  "published": "2024-05-14T18:30:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-32609"
    },
    {
      "type": "WEB",
      "url": "https://www.hdfgroup.org/2024/05/new-hdf5-cve-issues-fixed-in-1-14-4"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-C7HF-64RQ-W8MM

Vulnerability from github – Published: 2022-05-24 19:13 – Updated: 2023-01-11 09:30
VLAI
Details

A crafted NTFS image with an unallocated bitmap can lead to a endless recursive function call chain (starting from ntfs_attr_pwrite), causing stack consumption in NTFS-3G < 2021.8.22.

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2021-39257"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-674"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-09-07T15:15:00Z",
    "severity": "MODERATE"
  },
  "details": "A crafted NTFS image with an unallocated bitmap can lead to a endless recursive function call chain (starting from ntfs_attr_pwrite), causing stack consumption in NTFS-3G \u003c 2021.8.22.",
  "id": "GHSA-c7hf-64rq-w8mm",
  "modified": "2023-01-11T09:30:32Z",
  "published": "2022-05-24T19:13:09Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/tuxera/ntfs-3g/security/advisories/GHSA-q759-8j5v-q5jp"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-39257"
    },
    {
      "type": "WEB",
      "url": "https://github.com/tuxera/ntfs-3g/releases"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2021/11/msg00013.html"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202301-01"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2021/dsa-4971"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-CC39-H55X-VP6H

Vulnerability from github – Published: 2022-05-13 01:19 – Updated: 2022-05-13 01:19
VLAI
Details

An issue was discovered in cp-demangle.c in GNU libiberty, as distributed in GNU Binutils 2.31. Stack Exhaustion occurs in the C++ demangling functions provided by libiberty, and there is a stack consumption problem caused by recursive stack frames: cplus_demangle_type, d_bare_function_type, d_function_type.

Severity
5.5 (Medium)
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2018-18484"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-674"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-10-18T21:29:00Z",
    "severity": "MODERATE"
  },
  "details": "An issue was discovered in cp-demangle.c in GNU libiberty, as distributed in GNU Binutils 2.31. Stack Exhaustion occurs in the C++ demangling functions provided by libiberty, and there is a stack consumption problem caused by recursive stack frames: cplus_demangle_type, d_bare_function_type, d_function_type.",
  "id": "GHSA-cc39-h55x-vp6h",
  "modified": "2022-05-13T01:19:38Z",
  "published": "2022-05-13T01:19:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-18484"
    },
    {
      "type": "WEB",
      "url": "https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87636"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4326-1"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4336-1"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00072.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00008.html"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/105693"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-CC95-PV6Q-RGMH

Vulnerability from github – Published: 2022-05-13 01:46 – Updated: 2022-05-13 01:46
VLAI
Details

The gst_riff_create_audio_caps function in gst-libs/gst/riff/riff-media.c in gst-plugins-base in GStreamer before 1.10.3 does not properly limit recursion, which allows remote attackers to cause a denial of service (stack overflow and crash) via vectors involving nested WAVEFORMATEX.

Severity
7.5 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2017-5839"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-674"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-02-09T15:59:00Z",
    "severity": "HIGH"
  },
  "details": "The gst_riff_create_audio_caps function in gst-libs/gst/riff/riff-media.c in gst-plugins-base in GStreamer before 1.10.3 does not properly limit recursion, which allows remote attackers to cause a denial of service (stack overflow and crash) via vectors involving nested WAVEFORMATEX.",
  "id": "GHSA-cc95-pv6q-rgmh",
  "modified": "2022-05-13T01:46:20Z",
  "published": "2022-05-13T01:46:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-5839"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:2060"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.gnome.org/show_bug.cgi?id=777265"
    },
    {
      "type": "WEB",
      "url": "https://gstreamer.freedesktop.org/releases/1.10/#1.10.3"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/201705-10"
    },
    {
      "type": "WEB",
      "url": "http://www.debian.org/security/2017/dsa-3819"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2017/02/01/7"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2017/02/02/9"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/96001"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-CF58-VMG8-228P

Vulnerability from github – Published: 2026-02-10 21:31 – Updated: 2026-02-10 21:31
VLAI
Details

MongoDB Server may experience an out-of-memory failure while evaluating expressions that produce deeply nested documents. The issue arises in recursive functions because the server does not periodically check the depth of the expression.

Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2026-1849"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-674"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-02-10T19:15:51Z",
    "severity": "HIGH"
  },
  "details": "MongoDB Server may experience an out-of-memory failure while evaluating expressions that produce deeply nested documents. The issue arises in recursive functions because the server does not periodically check the depth of the expression.",
  "id": "GHSA-cf58-vmg8-228p",
  "modified": "2026-02-10T21:31:29Z",
  "published": "2026-02-10T21:31:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-1849"
    },
    {
      "type": "WEB",
      "url": "https://jira.mongodb.org/browse/SERVER-102364"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

GHSA-CJ46-35HF-RV96

Vulnerability from github – Published: 2022-09-29 00:00 – Updated: 2022-10-01 00:00
VLAI
Details

In PHP versions before 7.4.31, 8.0.24 and 8.1.11, the phar uncompressor code would recursively uncompress "quines" gzip files, resulting in an infinite loop.

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2022-31628"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-674",
      "CWE-835"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-09-28T23:15:00Z",
    "severity": "MODERATE"
  },
  "details": "In PHP versions before 7.4.31, 8.0.24 and 8.1.11, the phar uncompressor code would recursively uncompress \"quines\" gzip files, resulting in an infinite loop.",
  "id": "GHSA-cj46-35hf-rv96",
  "modified": "2022-10-01T00:00:19Z",
  "published": "2022-09-29T00:00:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-31628"
    },
    {
      "type": "WEB",
      "url": "https://bugs.php.net/bug.php?id=81726"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2022/12/msg00030.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2L5SUVYGAKSWODUQPZFBUB3AL6E6CSEV"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VI3E6A3ZTH2RP7OMLJHSVFIEQBIFM6RF"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XNIEABBH5XCXLFWWZYIDE457SPEDZTXV"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202211-03"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20221209-0001"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2022/dsa-5277"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-CJ9G-3MJ2-G8VV

Vulnerability from github – Published: 2026-06-25 19:51 – Updated: 2026-06-25 19:51
VLAI
Summary
MessagePack-CSharp: JSON conversion APIs can recurse without consistent depth enforcement
Details

Summary

MessagePack-CSharp's JSON conversion helpers contain multiple recursion paths that do not consistently enforce a depth limit. These paths are in the JSON conversion component rather than normal typed MessagePack deserialization.

Three related issues are covered by this advisory:

  1. MessagePackSerializer.ConvertFromJson recursively processes nested JSON arrays and objects in FromJsonCore() without consulting MessagePackSecurity.MaximumObjectGraphDepth.
  2. TinyJsonReader.ReadNextToken() recursively consumes comma and colon separator characters, allowing even malformed JSON with long separator runs to consume one stack frame per character.
  3. MessagePackSerializer.ConvertToJson applies depth checks to arrays and maps, but the typeless extension branch for ext-100 recursively calls ToJsonCore() without applying MessagePackSecurity.DepthStep(ref reader).

Each path can allow attacker-controlled input to exhaust the process stack and trigger an uncatchable StackOverflowException instead of failing with a catchable parse or serialization exception.

Impact

Applications are affected when they call MessagePack-CSharp JSON conversion APIs on attacker-controlled data. This includes gateways, diagnostics endpoints, migration tools, logging paths, and services that convert between external JSON and MessagePack payloads.

For JSON-to-MessagePack conversion, deeply nested JSON arrays or objects can recurse through FromJsonCore() without applying the configured object graph depth limit. Separately, long runs of comma or colon separator characters can recurse through TinyJsonReader.ReadNextToken() before normal structural validation rejects the input.

For MessagePack-to-JSON conversion, nested typeless extension wrappers can recurse through ToJsonCore() without the depth guard that the same function applies to arrays and maps.

MessagePackSecurity.UntrustedData does not fully mitigate these conversion paths because the missing checks occur inside JSON conversion and tokenization branches that do not consistently use the configured depth policy.

Affected components

  • Package: MessagePack
  • APIs: MessagePackSerializer.ConvertFromJson, MessagePackSerializer.ConvertToJson
  • Internal routines: FromJsonCore, ToJsonCore, TinyJsonReader.ReadNextToken
  • Data shapes: deeply nested JSON arrays/objects, long JSON separator runs, and nested typeless MessagePack extension values converted to JSON
  • Finding IDs: MESSAGEPACKCSHARP-090, MESSAGEPACKCSHARP-091, MESSAGEPACKCSHARP-092

Patches

Fixes are prepared and will be released in coordinated patch versions.

Upgrade guidance:

  1. Upgrade MessagePack to the patched version for your release line.
  2. Upgrade companion MessagePack packages in the same dependency graph to the coordinated patched versions.

The JSON-to-MessagePack fix should add explicit JSON nesting-depth accounting to FromJsonCore, using the configured maximum object graph depth or an equivalent limit, or rewrite the conversion to use an iterative bounded stack.

The tokenizer fix should replace separator self-recursion in TinyJsonReader.ReadNextToken() with an iterative loop so consecutive commas, colons, and whitespace do not consume stack frames.

The MessagePack-to-JSON fix should apply DepthStep and matching reader.Depth-- cleanup around recursive ToJsonCore() calls made from the typeless extension branch, consistent with the existing array and map conversion branches.

Workarounds

Patching is recommended.

Until a patched version is available, do not pass untrusted JSON directly to ConvertFromJson, and do not call ConvertToJson on untrusted MessagePack payloads that may contain typeless extension values. Validate JSON nesting depth with a parser that enforces depth limits before calling MessagePack-CSharp, reject malformed JSON before conversion, and apply strict input-size limits.

Input-size limits reduce exposure but do not remove the recursive behavior in affected versions.

References

  • MESSAGEPACKCSHARP-090: ConvertFromJson unbounded structural recursion
  • MESSAGEPACKCSHARP-091: TinyJsonReader.ReadNextToken separator self-recursion
  • MESSAGEPACKCSHARP-092: ConvertToJson ext-100 branch missing depth enforcement
  • CWE-674: Uncontrolled Recursion

CVE split rationale

These issues are grouped because they affect the same JSON conversion feature area and share the same failure mode: recursive conversion/tokenization paths do not consistently enforce depth or iteration bounds for attacker-controlled input. They are distinct from normal binary MessagePack skip recursion, dynamic union formatter depth accounting, DateTime stack allocation, and allocation-oriented denial-of-service issues.

Severity
6.3 (Medium)
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Show details on source website
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "NuGet",
        "name": "MessagePack"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.5.301"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "NuGet",
        "name": "MessagePack"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.0"
            },
            {
              "fixed": "3.1.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-48512"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-674"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-06-25T19:51:36Z",
    "nvd_published_at": "2026-06-22T22:16:47Z",
    "severity": "MODERATE"
  },
  "details": "## Summary\n\nMessagePack-CSharp\u0027s JSON conversion helpers contain multiple recursion paths that do not consistently enforce a depth limit. These paths are in the JSON conversion component rather than normal typed MessagePack deserialization.\n\nThree related issues are covered by this advisory:\n\n1. `MessagePackSerializer.ConvertFromJson` recursively processes nested JSON arrays and objects in `FromJsonCore()` without consulting `MessagePackSecurity.MaximumObjectGraphDepth`.\n2. `TinyJsonReader.ReadNextToken()` recursively consumes comma and colon separator characters, allowing even malformed JSON with long separator runs to consume one stack frame per character.\n3. `MessagePackSerializer.ConvertToJson` applies depth checks to arrays and maps, but the typeless extension branch for ext-100 recursively calls `ToJsonCore()` without applying `MessagePackSecurity.DepthStep(ref reader)`.\n\nEach path can allow attacker-controlled input to exhaust the process stack and trigger an uncatchable `StackOverflowException` instead of failing with a catchable parse or serialization exception.\n\n## Impact\n\nApplications are affected when they call MessagePack-CSharp JSON conversion APIs on attacker-controlled data. This includes gateways, diagnostics endpoints, migration tools, logging paths, and services that convert between external JSON and MessagePack payloads.\n\nFor JSON-to-MessagePack conversion, deeply nested JSON arrays or objects can recurse through `FromJsonCore()` without applying the configured object graph depth limit. Separately, long runs of comma or colon separator characters can recurse through `TinyJsonReader.ReadNextToken()` before normal structural validation rejects the input.\n\nFor MessagePack-to-JSON conversion, nested typeless extension wrappers can recurse through `ToJsonCore()` without the depth guard that the same function applies to arrays and maps.\n\n`MessagePackSecurity.UntrustedData` does not fully mitigate these conversion paths because the missing checks occur inside JSON conversion and tokenization branches that do not consistently use the configured depth policy.\n\n## Affected components\n\n- Package: `MessagePack`\n- APIs: `MessagePackSerializer.ConvertFromJson`, `MessagePackSerializer.ConvertToJson`\n- Internal routines: `FromJsonCore`, `ToJsonCore`, `TinyJsonReader.ReadNextToken`\n- Data shapes: deeply nested JSON arrays/objects, long JSON separator runs, and nested typeless MessagePack extension values converted to JSON\n- Finding IDs: `MESSAGEPACKCSHARP-090`, `MESSAGEPACKCSHARP-091`, `MESSAGEPACKCSHARP-092`\n\n## Patches\n\nFixes are prepared and will be released in coordinated patch versions.\n\nUpgrade guidance:\n\n1. Upgrade `MessagePack` to the patched version for your release line.\n2. Upgrade companion MessagePack packages in the same dependency graph to the coordinated patched versions.\n\nThe JSON-to-MessagePack fix should add explicit JSON nesting-depth accounting to `FromJsonCore`, using the configured maximum object graph depth or an equivalent limit, or rewrite the conversion to use an iterative bounded stack.\n\nThe tokenizer fix should replace separator self-recursion in `TinyJsonReader.ReadNextToken()` with an iterative loop so consecutive commas, colons, and whitespace do not consume stack frames.\n\nThe MessagePack-to-JSON fix should apply `DepthStep` and matching `reader.Depth--` cleanup around recursive `ToJsonCore()` calls made from the typeless extension branch, consistent with the existing array and map conversion branches.\n\n## Workarounds\n\nPatching is recommended.\n\nUntil a patched version is available, do not pass untrusted JSON directly to `ConvertFromJson`, and do not call `ConvertToJson` on untrusted MessagePack payloads that may contain typeless extension values. Validate JSON nesting depth with a parser that enforces depth limits before calling MessagePack-CSharp, reject malformed JSON before conversion, and apply strict input-size limits.\n\nInput-size limits reduce exposure but do not remove the recursive behavior in affected versions.\n\n## References\n\n- `MESSAGEPACKCSHARP-090`: `ConvertFromJson` unbounded structural recursion\n- `MESSAGEPACKCSHARP-091`: `TinyJsonReader.ReadNextToken` separator self-recursion\n- `MESSAGEPACKCSHARP-092`: `ConvertToJson` ext-100 branch missing depth enforcement\n- CWE-674: Uncontrolled Recursion\n\n## CVE split rationale\n\nThese issues are grouped because they affect the same JSON conversion feature area and share the same failure mode: recursive conversion/tokenization paths do not consistently enforce depth or iteration bounds for attacker-controlled input. They are distinct from normal binary MessagePack skip recursion, dynamic union formatter depth accounting, DateTime stack allocation, and allocation-oriented denial-of-service issues.",
  "id": "GHSA-cj9g-3mj2-g8vv",
  "modified": "2026-06-25T19:51:36Z",
  "published": "2026-06-25T19:51:36Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/MessagePack-CSharp/MessagePack-CSharp/security/advisories/GHSA-cj9g-3mj2-g8vv"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-48512"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/MessagePack-CSharp/MessagePack-CSharp"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "MessagePack-CSharp: JSON conversion APIs can recurse without consistent depth enforcement"
}

GHSA-CMR2-GMFQ-RGQ8

Vulnerability from github – Published: 2022-05-24 16:44 – Updated: 2022-05-24 16:44
VLAI
Details

An issue was discovered in Artifex MuJS 1.0.5. It has unlimited recursion because the match function in regexp.c lacks a depth check.

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{
  "affected": [],
  "aliases": [
    "CVE-2019-11413"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-674"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-04-22T11:29:00Z",
    "severity": "HIGH"
  },
  "details": "An issue was discovered in Artifex MuJS 1.0.5. It has unlimited recursion because the match function in regexp.c lacks a depth check.",
  "id": "GHSA-cmr2-gmfq-rgq8",
  "modified": "2022-05-24T16:44:05Z",
  "published": "2022-05-24T16:44:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-11413"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ccxvii/mujs/commit/00d4606c3baf813b7b1c176823b2729bf51002a2"
    },
    {
      "type": "WEB",
      "url": "https://bugs.ghostscript.com/show_bug.cgi?id=700937"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3RQXMWEOWCGLOLFBQSXBM3MBN33T4I5H"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/67PMOZV4DLVL2KGU2SV724QL7Y4PKWKU"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MFCRO74ORRIVWNVAX2MAMRY3THCTWLQI"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202007-52"
    },
    {
      "type": "WEB",
      "url": "http://www.ghostscript.com/cgi-bin/findgit.cgi?00d4606c3baf813b7b1c176823b2729bf51002a2"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/108093"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}
Mitigation
Implementation

Ensure that an end condition will be reached under all logic conditions. The end condition may include checking against the depth of recursion and exiting with an error if the recursion goes too deep. The complexity of the end condition contributes to the effectiveness of this action.

Mitigation
Implementation

Increase the stack size.

CAPEC-230: Serialized Data with Nested Payloads

Applications often need to transform data in and out of a data format (e.g., XML and YAML) by using a parser. It may be possible for an adversary to inject data that may have an adverse effect on the parser when it is being processed. Many data format languages allow the definition of macro-like structures that can be used to simplify the creation of complex structures. By nesting these structures, causing the data to be repeatedly substituted, an adversary can cause the parser to consume more resources while processing, causing excessive memory consumption and CPU utilization.

CAPEC-231: Oversized Serialized Data Payloads

An adversary injects oversized serialized data payloads into a parser during data processing to produce adverse effects upon the parser such as exhausting system resources and arbitrary code execution.

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