Common Weakness Enumeration

CWE-835

Allowed

Loop with Unreachable Exit Condition ('Infinite Loop')

Abstraction: Base · Status: Incomplete

API response cwe.mitre.org

The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.

1314 vulnerabilities reference this CWE, most recent first.

GHSA-HQCM-3JF7-M4CG

Vulnerability from github – Published: 2022-05-13 01:30 – Updated: 2022-05-13 01:30
VLAI
Details

sas/readstat_sas7bcat_read.c in libreadstat.a in ReadStat 0.1.1 has an infinite loop.

Severity
7.5 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2018-11365"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-835"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-05-22T04:29:00Z",
    "severity": "HIGH"
  },
  "details": "sas/readstat_sas7bcat_read.c in libreadstat.a in ReadStat 0.1.1 has an infinite loop.",
  "id": "GHSA-hqcm-3jf7-m4cg",
  "modified": "2022-05-13T01:30:25Z",
  "published": "2022-05-13T01:30:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-11365"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ChijinZ/security_advisories/tree/master/ReadStat-7bced5b"
    }
  ],
  "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-HR45-W7F7-W9J6

Vulnerability from github – Published: 2026-05-08 18:31 – Updated: 2026-05-08 21:31
VLAI
Details

lwjson 1.8.1 contains an improper input validation vulnerability in the streaming JSON parser (lwjson_stream.c). The end-of-string detection logic incorrectly identifies escaped quote characters by only checking the immediately preceding character rather than counting consecutive backslashes, causing valid JSON strings ending with an escaped backslash (like "\") to never terminate parsing. A remote attacker can send well-formed JSON to cause applications using lwjson_stream_parse() to hang indefinitely, resulting in denial of service.

Severity
7.5 (High)
CVSS:3.1/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-2026-29975"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-835"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-08T16:16:10Z",
    "severity": "HIGH"
  },
  "details": "lwjson 1.8.1 contains an improper input validation vulnerability in the streaming JSON parser (lwjson_stream.c). The end-of-string detection logic incorrectly identifies escaped quote characters by only checking the immediately preceding character rather than counting consecutive backslashes, causing valid JSON strings ending with an escaped backslash (like \"\\\\\") to never terminate parsing. A remote attacker can send well-formed JSON to cause applications using lwjson_stream_parse() to hang indefinitely, resulting in denial of service.",
  "id": "GHSA-hr45-w7f7-w9j6",
  "modified": "2026-05-08T21:31:25Z",
  "published": "2026-05-08T18:31:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-29975"
    },
    {
      "type": "WEB",
      "url": "https://gist.github.com/dwilliams27/b99fd41be5d6848691797042cbfc1103"
    },
    {
      "type": "WEB",
      "url": "https://github.com/MaJerle/lwjson/blob/develop/lwjson/src/lwjson/lwjson_stream.c#L362-L364"
    },
    {
      "type": "WEB",
      "url": "https://github.com/MaJerle/lwjson/tree/develop"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-HR7V-M862-8HH8

Vulnerability from github – Published: 2022-05-24 22:01 – Updated: 2026-10-14 12:31
VLAI
Details

A flaw was found in python. An improperly handled HTTP response in the HTTP client code of python may allow a remote attacker, who controls the HTTP server, to make the client script enter an infinite loop, consuming CPU time. The highest threat from this vulnerability is to system availability.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2021-3737"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400",
      "CWE-835"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-03-04T19:15:00Z",
    "severity": "LOW"
  },
  "details": "A flaw was found in python. An improperly handled HTTP response in the HTTP client code of python may allow a remote attacker, who controls the HTTP server, to make the client script enter an infinite loop, consuming CPU time. The highest threat from this vulnerability is to system availability.",
  "id": "GHSA-hr7v-m862-8hh8",
  "modified": "2026-10-14T12:31:23Z",
  "published": "2022-05-24T22:01:50Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3737"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/pull/25916"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/pull/26503"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/commit/ea9327036680acc92d9f89eaf6f6a54d2f8d78d9"
    },
    {
      "type": "WEB",
      "url": "https://bugs.python.org/issue44022"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1995162"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-398330.html"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/python/cpython"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2023/05/msg00024.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2023/06/msg00039.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2024/11/msg00024.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2024/12/msg00000.html"
    },
    {
      "type": "WEB",
      "url": "https://python-security.readthedocs.io/vuln/urllib-100-continue-loop.html"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20220407-0009"
    },
    {
      "type": "WEB",
      "url": "https://ubuntu.com/security/CVE-2021-3737"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpujul2022.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-HR9R-8PHQ-5X8J

Vulnerability from github – Published: 2023-06-28 22:49 – Updated: 2023-07-03 18:39
VLAI
Summary
OpenFGA vulnerable to denial of service due to circular relationship
Details

Overview

OpenFGA versions v1.1.0 and prior are vulnerable to a DoS attack when certain Check and ListObjects calls are executed against authorization models that contain circular relationship definitions.

Am I Affected?

You are affected by this vulnerability if you are using OpenFGA v1.1.0 or earlier, and if you are executing certain Check or ListObjects calls against a vulnerable authorization model. To see which of your models could be vulnerable to this attack, download OpenFGA v1.2.0 and run the following command: 

./openfga validate-models --datastore-engine <ENGINE> --datastore-uri <URI> | jq .[] | select(.Error | contains("loop"))

replacing the variables <ENGINE> and <URI> as needed.

Fix

Upgrade to v1.1.1.

Backward Compatibility

If you are not passing an invalid authorization model (as identified by running ./openfga validate-models) as a parameter of your Check and ListObjects calls, this upgrade is backwards compatible.

Otherwise, OpenFGA v1.1.1 will start returning HTTP 400 status codes on those calls.

Severity
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/openfga/openfga"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.1.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-35933"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-835"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-06-28T22:49:49Z",
    "nvd_published_at": "2023-06-26T20:15:10Z",
    "severity": "MODERATE"
  },
  "details": "### Overview\n\nOpenFGA versions v1.1.0 and prior are vulnerable to a DoS attack when certain Check and ListObjects calls are executed against authorization models that contain circular relationship definitions.\n\n### Am I Affected?\n\nYou are affected by this vulnerability if you are using OpenFGA v1.1.0 or earlier, and if you are executing certain [Check](https://openfga.dev/api/service#/Relationship%20Queries/Check) or [ListObjects](https://openfga.dev/api/service#/Relationship%20Queries/ListObjects) calls against a vulnerable authorization model. To see which of your models could be vulnerable to this attack, download OpenFGA v1.2.0 and run the following command: \n\n```\n./openfga validate-models --datastore-engine \u003cENGINE\u003e --datastore-uri \u003cURI\u003e | jq .[] | select(.Error | contains(\"loop\"))\n```\n\nreplacing the variables `\u003cENGINE\u003e` and `\u003cURI\u003e` as needed.\n\n### Fix\n\nUpgrade to v1.1.1.\n\n### Backward Compatibility\n\nIf you are not passing an invalid authorization model (as identified by running `./openfga validate-models`) as a parameter of your Check and ListObjects calls, this upgrade is backwards compatible. \n\nOtherwise, OpenFGA v1.1.1 will start returning HTTP 400 status codes on those calls.",
  "id": "GHSA-hr9r-8phq-5x8j",
  "modified": "2023-07-03T18:39:26Z",
  "published": "2023-06-28T22:49:49Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/openfga/openfga/security/advisories/GHSA-hr9r-8phq-5x8j"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-35933"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openfga/openfga/commit/087ce392595f3c319ab3028b5089118ea4063452"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/openfga/openfga"
    },
    {
      "type": "WEB",
      "url": "https://openfga.dev/api/service#/Relationship%20Queries/Check"
    },
    {
      "type": "WEB",
      "url": "https://openfga.dev/api/service#/Relationship%20Queries/ListObjects"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "OpenFGA vulnerable to denial of service due to circular relationship"
}

GHSA-HRMR-F5M6-M9PQ

Vulnerability from github – Published: 2018-10-19 16:41 – Updated: 2024-06-05 17:11
VLAI
Summary
Moderate severity vulnerability that affects org.apache.commons:commons-compress
Details

When reading a specially crafted ZIP archive, the read method of Apache Commons Compress 1.7 to 1.17's ZipArchiveInputStream can fail to return the correct EOF indication after the end of the stream has been reached. When combined with a java.io.InputStreamReader this can lead to an infinite stream, which can be used to mount a denial of service attack against services that use Compress' zip package.

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
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.apache.commons:commons-compress"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.7"
            },
            {
              "fixed": "1.18"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2018-11771"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-835"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-06-16T21:40:55Z",
    "nvd_published_at": "2018-08-16T15:29:00Z",
    "severity": "MODERATE"
  },
  "details": "When reading a specially crafted ZIP archive, the read method of Apache Commons Compress 1.7 to 1.17\u0027s ZipArchiveInputStream can fail to return the correct EOF indication after the end of the stream has been reached. When combined with a java.io.InputStreamReader this can lead to an infinite stream, which can be used to mount a denial of service attack against services that use Compress\u0027 zip package.",
  "id": "GHSA-hrmr-f5m6-m9pq",
  "modified": "2024-06-05T17:11:42Z",
  "published": "2018-10-19T16:41:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-11771"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpujan2022.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/ff8dcfe29377088ab655fda9d585dccd5b1f07fabd94ae84fd60a7f8@%3Ccommits.pulsar.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/f9cdd32af7d73e943452167d15801db39e8130409ebb9efb243b3f41@%3Ccommits.tinkerpop.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/f28052d04cb8dbaae39bfd3dc8438e58c2a8be306a3f381f4728d7c1@%3Ccommits.commons.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/eeecc1669242b28a3777ae13c68b376b0148d589d3d8170340d61120@%3Cdev.tinkerpop.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/e3eae9e6fc021c4c22dda59a335d21c12eecab480b48115a2f098ef6@%3Ccommits.tinkerpop.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/c7954dc1e8fafd7ca1449f078953b419ebf8936e087f235f3bd024be@%3Ccommits.tinkerpop.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/b907e70bc422905d7962fd18f863f746bf7b4e7ed9da25c148580c61@%3Cnotifications.commons.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/b8ef29df0f1d55aa741170748352ae8e425c7b1d286b2f257711a2dd@%3Cdev.creadur.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/b8da751fc0ca949534cdf2744111da6bb0349d2798fac94b0a50f330@%3Cannounce.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/714c6ac1b1b50f8557e7342903ef45f1538a7bc60a0b47d6e48c273d@%3Ccommits.tinkerpop.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/6c79965066c30d4e330e04d911d3761db41b82c89ae38d9a6b37a6f1@%3Cdev.tinkerpop.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/35f60d6d0407c13c39411038ba1aca71d92595ed7041beff4d07f2ee@%3Ccommits.tinkerpop.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/3565494c263dfeb4dcb2a71cb24d09a1ca285cd6ac74edc025a3af8a@%3Ccommits.tinkerpop.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/0adb631517766e793e18a59723e2df08ced41eb9a57478f14781c9f7@%3Cdev.tinkerpop.apache.org%3E"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/apache/commons-compress"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/105139"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1041503"
    }
  ],
  "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"
    }
  ],
  "summary": "Moderate severity vulnerability that affects org.apache.commons:commons-compress"
}

GHSA-HX96-9F4R-RWCP

Vulnerability from github – Published: 2024-08-17 12:30 – Updated: 2026-05-12 12:32
VLAI
Details

In the Linux kernel, the following vulnerability has been resolved:

ext4: fix infinite loop when replaying fast_commit

When doing fast_commit replay an infinite loop may occur due to an uninitialized extent_status struct. ext4_ext_determine_insert_hole() does not detect the replay and calls ext4_es_find_extent_range(), which will return immediately without initializing the 'es' variable.

Because 'es' contains garbage, an integer overflow may happen causing an infinite loop in this function, easily reproducible using fstest generic/039.

This commit fixes this issue by unconditionally initializing the structure in function ext4_es_find_extent_range().

Thanks to Zhang Yi, for figuring out the real problem!

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
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2024-43828"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-835"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-08-17T10:15:08Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix infinite loop when replaying fast_commit\n\nWhen doing fast_commit replay an infinite loop may occur due to an\nuninitialized extent_status struct.  ext4_ext_determine_insert_hole() does\nnot detect the replay and calls ext4_es_find_extent_range(), which will\nreturn immediately without initializing the \u0027es\u0027 variable.\n\nBecause \u0027es\u0027 contains garbage, an integer overflow may happen causing an\ninfinite loop in this function, easily reproducible using fstest generic/039.\n\nThis commit fixes this issue by unconditionally initializing the structure\nin function ext4_es_find_extent_range().\n\nThanks to Zhang Yi, for figuring out the real problem!",
  "id": "GHSA-hx96-9f4r-rwcp",
  "modified": "2026-05-12T12:32:04Z",
  "published": "2024-08-17T12:30:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-43828"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0619f7750f2b178a1309808832ab20d85e0ad121"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/181e63cd595c688194e07332f9944b3a63193de2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5ed0496e383cb6de120e56991385dce70bbb87c1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/81f819c537d29932e4b9267f02411cbc8b355178"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/907c3fe532253a6ef4eb9c4d67efb71fab58c706"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c6e67df64783e99a657ef2b8c834ba2bf54c539c"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
    }
  ],
  "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-J29Q-2HMG-PFVH

Vulnerability from github – Published: 2023-02-12 06:30 – Updated: 2023-02-21 18:30
VLAI
Details

Denial of service in modem due to missing null check while processing IP packets with padding

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2022-25734"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-835"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-02-12T04:15:00Z",
    "severity": "HIGH"
  },
  "details": "Denial of service in modem due to missing null check while processing IP packets with padding",
  "id": "GHSA-j29q-2hmg-pfvh",
  "modified": "2023-02-21T18:30:23Z",
  "published": "2023-02-12T06:30:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-25734"
    },
    {
      "type": "WEB",
      "url": "https://www.qualcomm.com/company/product-security/bulletins/february-2023-bulletin"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-J2XQ-PFFF-MVGG

Vulnerability from github – Published: 2022-05-13 01:53 – Updated: 2022-06-29 18:54
VLAI
Summary
Loop with Unreachable Exit Condition in Apache PDFBox
Details

In Apache PDFBox 1.8.0 to 1.8.14 and 2.0.0RC1 to 2.0.10, a carefully crafted (or fuzzed) file can trigger an infinite loop which leads to an out of memory exception in Apache PDFBox's AFMParser.

Severity
6.5 (Medium)
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Show details on source website
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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 1.8.14"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.apache.pdfbox:pdfbox"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.8.0"
            },
            {
              "fixed": "1.8.15"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 2.0.10"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.apache.pdfbox:pdfbox"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.0.0RC1"
            },
            {
              "fixed": "2.0.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2018-8036"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-835"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-06-29T18:54:14Z",
    "nvd_published_at": "2018-07-03T20:29:00Z",
    "severity": "MODERATE"
  },
  "details": "In Apache PDFBox 1.8.0 to 1.8.14 and 2.0.0RC1 to 2.0.10, a carefully crafted (or fuzzed) file can trigger an infinite loop which leads to an out of memory exception in Apache PDFBox\u0027s AFMParser.",
  "id": "GHSA-j2xq-pfff-mvgg",
  "modified": "2022-06-29T18:54:14Z",
  "published": "2022-05-13T01:53:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-8036"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:2669"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/9f62f742fd4fcd81654a9533b8a71349b064250840592bcd502dcfb6@%3Cusers.pdfbox.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/r43491b25b2e5c368c34b106a82eff910a5cea3e90de82ad75cc16540@%3Cdev.syncope.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6HKVPTJWZGUB4MH4AAOWMRJHRDBYFHGJ"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/POPOGHJ5CVMUVCRQU7APBAN5IVZGZFDX"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpuapr2020.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Loop with Unreachable Exit Condition in Apache PDFBox"
}

GHSA-J36C-72RW-944M

Vulnerability from github – Published: 2022-05-13 01:47 – Updated: 2025-04-20 03:38
VLAI
Details

libqpdf.a in QPDF 6.0.0 allows remote attackers to cause a denial of service (infinite recursion and stack consumption) via a crafted PDF document, related to releaseResolved functions, aka qpdf-infiniteloop1.

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-2017-9208"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-835"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-05-23T04:29:00Z",
    "severity": "MODERATE"
  },
  "details": "libqpdf.a in QPDF 6.0.0 allows remote attackers to cause a denial of service (infinite recursion and stack consumption) via a crafted PDF document, related to releaseResolved functions, aka qpdf-infiniteloop1.",
  "id": "GHSA-j36c-72rw-944m",
  "modified": "2025-04-20T03:38:11Z",
  "published": "2022-05-13T01:47:50Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-9208"
    },
    {
      "type": "WEB",
      "url": "https://blogs.gentoo.org/ago/2017/05/21/qpdf-three-infinite-loop-in-libqpdf"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3638-1"
    }
  ],
  "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-J3F2-48V5-CCWW

Vulnerability from github – Published: 2026-07-20 22:03 – Updated: 2026-07-20 22:03
VLAI
Summary
protobufjs: Denial of Service via infinite loop in .proto option parsing
Details

Summary

protobufjs parsed option names by advancing through schema tokens until it reached an = token, without checking for end of input. A crafted .proto schema that opens an option declaration but ends prematurely could cause the option parser to loop without ever terminating.

This affects the reflection parsing path (parse, Root.load, Root.loadSync).

Impact

An attacker who can provide or influence .proto schema text parsed by an application may be able to cause the parsing call to never return. Because Node.js is single-threaded, the blocked event loop prevents all other work in the process, resulting in a denial of service that persists until the process is externally terminated.

Applications that only encode or decode protobuf binary data with trusted schemas are not directly affected.

Preconditions

  • The application must parse .proto schema text influenced by an attacker.
  • The schema must be parsed through APIs such as parse, Root.load, or Root.loadSync.
  • The crafted input must begin an option declaration that ends before its = assignment.

Workarounds

Do not parse .proto schemas from untrusted sources with affected versions. If untrusted schema text must be accepted, isolate parsing in a process or worker that can be safely terminated and bound it with a timeout, so a non-returning parse call cannot deny service to the rest of the application.

Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Show details on source website
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 7.6.4"
      },
      "package": {
        "ecosystem": "npm",
        "name": "protobufjs"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "7.5.0"
            },
            {
              "fixed": "7.6.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 8.6.5"
      },
      "package": {
        "ecosystem": "npm",
        "name": "protobufjs"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "8.0.0"
            },
            {
              "fixed": "8.6.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-59877"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-835"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-20T22:03:00Z",
    "nvd_published_at": "2026-07-08T16:16:34Z",
    "severity": "MODERATE"
  },
  "details": "## Summary\n\nprotobufjs parsed option names by advancing through schema tokens until it reached an `=` token, without checking for end of input. A crafted `.proto` schema that opens an option declaration but ends prematurely could cause the option parser to loop without ever terminating.\n\nThis affects the reflection parsing path (`parse`, `Root.load`, `Root.loadSync`).\n\n## Impact\n\nAn attacker who can provide or influence `.proto` schema text parsed by an application may be able to cause the parsing call to never return. Because Node.js is single-threaded, the blocked event loop prevents all other work in the process, resulting in a denial of service that persists until the process is externally terminated.\n\nApplications that only encode or decode protobuf binary data with trusted schemas are not directly affected.\n\n## Preconditions\n\n- The application must parse `.proto` schema text influenced by an attacker.\n- The schema must be parsed through APIs such as `parse`, `Root.load`, or `Root.loadSync`.\n- The crafted input must begin an option declaration that ends before its `=` assignment.\n\n## Workarounds\n\nDo not parse `.proto` schemas from untrusted sources with affected versions. If untrusted schema text must be accepted, isolate parsing in a process or worker that can be safely terminated and bound it with a timeout, so a non-returning parse call cannot deny service to the rest of the application.",
  "id": "GHSA-j3f2-48v5-ccww",
  "modified": "2026-07-20T22:03:00Z",
  "published": "2026-07-20T22:03:00Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/protobufjs/protobuf.js/security/advisories/GHSA-j3f2-48v5-ccww"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-59877"
    },
    {
      "type": "WEB",
      "url": "https://github.com/protobufjs/protobuf.js/pull/2352"
    },
    {
      "type": "WEB",
      "url": "https://github.com/protobufjs/protobuf.js/commit/10fba6d54815ceecca8a06b9a6db490c8f5d2217"
    },
    {
      "type": "WEB",
      "url": "https://github.com/protobufjs/protobuf.js/commit/fa5c73add738ceb471e74da8cc2f3727c3d0a69f"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/protobufjs/protobuf.js"
    },
    {
      "type": "WEB",
      "url": "https://github.com/protobufjs/protobuf.js/releases/tag/protobufjs-v7.6.5"
    },
    {
      "type": "WEB",
      "url": "https://github.com/protobufjs/protobuf.js/releases/tag/protobufjs-v8.6.6"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "protobufjs: Denial of Service via infinite loop in .proto option parsing"
}

No mitigation information available for this CWE.

No CAPEC attack patterns related to this CWE.

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