CWE-674
Allowed-with-ReviewUncontrolled Recursion
Abstraction: Class · Status: Draft
The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack.
641 vulnerabilities reference this CWE, most recent first.
GHSA-WVXW-Q92G-9GHF
Vulnerability from github – Published: 2026-06-04 18:30 – Updated: 2026-06-04 21:31Net::CIDR::Set versions through 0.20 for Perl did not validate IP addresses.
The add method called the _encode method to parse addresses. If the addresses did not look like netmasks or network ranges, then they were assumed to single IP addresses and passed back to itself as a 32-bit or 128-bit netmask.
If the argument was not a well-formed IP address, then this would lead to indefinite recursion.
An attacker could use this to cause a denial of service.
{
"affected": [],
"aliases": [
"CVE-2026-49941"
],
"database_specific": {
"cwe_ids": [
"CWE-674"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-04T17:16:33Z",
"severity": "HIGH"
},
"details": "Net::CIDR::Set versions through 0.20 for Perl did not validate IP addresses.\n\nThe add method called the _encode method to parse addresses. If the addresses did not look like netmasks or network ranges, then they were assumed to single IP addresses and passed back to itself as a 32-bit or 128-bit netmask.\n\nIf the argument was not a well-formed IP address, then this would lead to indefinite recursion.\n\nAn attacker could use this to cause a denial of service.",
"id": "GHSA-wvxw-q92g-9ghf",
"modified": "2026-06-04T21:31:21Z",
"published": "2026-06-04T18:30:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-49941"
},
{
"type": "WEB",
"url": "https://metacpan.org/release/RRWO/Net-CIDR-Set-0.21/changes"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2026/06/04/11"
}
],
"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-WW3G-X39P-R2PW
Vulnerability from github – Published: 2022-05-13 01:12 – Updated: 2022-05-13 01:12Receipt of a malformed packet on MX Series devices with dynamic vlan configuration can trigger an uncontrolled recursion loop in the Broadband Edge subscriber management daemon (bbe-smgd), and lead to high CPU usage and a crash of the bbe-smgd service. Repeated receipt of the same packet can result in an extended denial of service condition for the device. Affected releases are Juniper Networks Junos OS: 16.1 versions prior to 16.1R7-S1; 16.2 versions prior to 16.2R2-S7; 17.1 versions prior to 17.1R2-S10, 17.1R3; 17.2 versions prior to 17.2R3; 17.3 versions prior to 17.3R3-S1; 17.4 versions prior to 17.4R2; 18.1 versions prior to 18.1R3; 18.2 versions prior to 18.2R2.
{
"affected": [],
"aliases": [
"CVE-2019-0001"
],
"database_specific": {
"cwe_ids": [
"CWE-674"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-01-15T21:29:00Z",
"severity": "HIGH"
},
"details": "Receipt of a malformed packet on MX Series devices with dynamic vlan configuration can trigger an uncontrolled recursion loop in the Broadband Edge subscriber management daemon (bbe-smgd), and lead to high CPU usage and a crash of the bbe-smgd service. Repeated receipt of the same packet can result in an extended denial of service condition for the device. Affected releases are Juniper Networks Junos OS: 16.1 versions prior to 16.1R7-S1; 16.2 versions prior to 16.2R2-S7; 17.1 versions prior to 17.1R2-S10, 17.1R3; 17.2 versions prior to 17.2R3; 17.3 versions prior to 17.3R3-S1; 17.4 versions prior to 17.4R2; 18.1 versions prior to 18.1R3; 18.2 versions prior to 18.2R2.",
"id": "GHSA-ww3g-x39p-r2pw",
"modified": "2022-05-13T01:12:22Z",
"published": "2022-05-13T01:12:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-0001"
},
{
"type": "WEB",
"url": "https://kb.juniper.net/JSA10900"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RMKFSHPMOZL7MDWU5RYOTIBTRWSZ4Z6X"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/W7CPKBW4QZ4VIY4UXIUVUSHRJ4R2FROE"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/106541"
}
],
"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-WX32-7CG6-9X4F
Vulnerability from github – Published: 2022-05-24 19:03 – Updated: 2022-12-21 15:30A flaw was found in PoDoFo 0.9.7. An uncontrolled recursive call among PdfTokenizer::ReadArray(), PdfTokenizer::GetNextVariant() and PdfTokenizer::ReadDataType() functions can lead to a stack overflow.
{
"affected": [],
"aliases": [
"CVE-2021-30470"
],
"database_specific": {
"cwe_ids": [
"CWE-674"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-05-26T22:15:00Z",
"severity": "MODERATE"
},
"details": "A flaw was found in PoDoFo 0.9.7. An uncontrolled recursive call among PdfTokenizer::ReadArray(), PdfTokenizer::GetNextVariant() and PdfTokenizer::ReadDataType() functions can lead to a stack overflow.",
"id": "GHSA-wx32-7cg6-9x4f",
"modified": "2022-12-21T15:30:16Z",
"published": "2022-05-24T19:03:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-30470"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1947436"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-X23X-4P2X-538Q
Vulnerability from github – Published: 2023-08-22 21:30 – Updated: 2024-04-04 07:08An infinite recursion in Catalog::findDestInTree can cause denial of service for xpdf 4.02.
{
"affected": [],
"aliases": [
"CVE-2022-48545"
],
"database_specific": {
"cwe_ids": [
"CWE-674"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-08-22T19:16:31Z",
"severity": "MODERATE"
},
"details": "An infinite recursion in Catalog::findDestInTree can cause denial of service for xpdf 4.02.",
"id": "GHSA-x23x-4p2x-538q",
"modified": "2024-04-04T07:08:14Z",
"published": "2023-08-22T21:30:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48545"
},
{
"type": "WEB",
"url": "https://forum.xpdfreader.com/viewtopic.php?f=3\u0026t=42092"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-X27M-9W8J-5VCW
Vulnerability from github – Published: 2022-09-17 00:00 – Updated: 2023-01-02 21:50Those using Jettison to parse untrusted XML or JSON data may be vulnerable to Denial of Service attacks (DOS). If the parser is running on user supplied input, an attacker may supply content that causes the parser to crash by Out of memory. This effect may support a denial of service attack.
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "org.codehaus.jettison:jettison"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.5.2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2022-40150"
],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-674"
],
"github_reviewed": true,
"github_reviewed_at": "2022-09-20T21:20:42Z",
"nvd_published_at": "2022-09-16T10:15:00Z",
"severity": "HIGH"
},
"details": "Those using Jettison to parse untrusted XML or JSON data may be vulnerable to Denial of Service attacks (DOS). If the parser is running on user supplied input, an attacker may supply content that causes the parser to crash by Out of memory. This effect may support a denial of service attack.",
"id": "GHSA-x27m-9w8j-5vcw",
"modified": "2023-01-02T21:50:43Z",
"published": "2022-09-17T00:00:41Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-40150"
},
{
"type": "WEB",
"url": "https://github.com/jettison-json/jettison/issues/45"
},
{
"type": "WEB",
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=46549"
},
{
"type": "PACKAGE",
"url": "https://github.com/jettison-json/jettison"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2022/12/msg00045.html"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2023/dsa-5312"
}
],
"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"
}
],
"summary": "Jettison memory exhaustion"
}
GHSA-X2CJ-W5C5-J878
Vulnerability from github – Published: 2022-05-13 01:42 – Updated: 2022-05-13 01:42There is a stack consumption vulnerability in the Parser::advanceToNextToken function in parser.cpp in LibSass 3.4.5. A crafted input may lead to remote denial of service.
{
"affected": [],
"aliases": [
"CVE-2017-11556"
],
"database_specific": {
"cwe_ids": [
"CWE-674"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-07-23T03:29:00Z",
"severity": "HIGH"
},
"details": "There is a stack consumption vulnerability in the Parser::advanceToNextToken function in parser.cpp in LibSass 3.4.5. A crafted input may lead to remote denial of service.",
"id": "GHSA-x2cj-w5c5-j878",
"modified": "2022-05-13T01:42:25Z",
"published": "2022-05-13T01:42:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-11556"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1471786"
}
],
"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-X2G3-V8H5-XMCW
Vulnerability from github – Published: 2022-05-24 22:01 – Updated: 2023-10-24 21:30A Denial Of Service vulnerability exists in the safe-svg (aka Safe SVG) plugin through 1.9.4 for WordPress, related to unlimited recursion for a '' substring.
{
"affected": [],
"aliases": [
"CVE-2019-18854"
],
"database_specific": {
"cwe_ids": [
"CWE-674"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-11-11T15:15:00Z",
"severity": "MODERATE"
},
"details": "A Denial Of Service vulnerability exists in the safe-svg (aka Safe SVG) plugin through 1.9.4 for WordPress, related to unlimited recursion for a \u0027\u003cuse ... xlink:href=\"#identifier\"\u003e\u0027 substring.",
"id": "GHSA-x2g3-v8h5-xmcw",
"modified": "2023-10-24T21:30:18Z",
"published": "2022-05-24T22:01:08Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-18854"
},
{
"type": "WEB",
"url": "https://fortiguard.com/zeroday/FG-VD-19-113"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/changeset/2185438"
},
{
"type": "WEB",
"url": "https://wordpress.org/plugins/safe-svg/#developers"
},
{
"type": "WEB",
"url": "https://wpvulndb.com/vulnerabilities/9937"
}
],
"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-X2V6-JX2X-C364
Vulnerability from github – Published: 2025-09-12 18:31 – Updated: 2026-07-14 15:31In the Linux kernel, the following vulnerability has been resolved:
block: avoid possible overflow for chunk_sectors check in blk_stack_limits()
In blk_stack_limits(), we check that the t->chunk_sectors value is a multiple of the t->physical_block_size value.
However, by finding the chunk_sectors value in bytes, we may overflow the unsigned int which holds chunk_sectors, so change the check to be based on sectors.
{
"affected": [],
"aliases": [
"CVE-2025-39795"
],
"database_specific": {
"cwe_ids": [
"CWE-674"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-09-12T16:15:33Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nblock: avoid possible overflow for chunk_sectors check in blk_stack_limits()\n\nIn blk_stack_limits(), we check that the t-\u003echunk_sectors value is a\nmultiple of the t-\u003ephysical_block_size value.\n\nHowever, by finding the chunk_sectors value in bytes, we may overflow\nthe unsigned int which holds chunk_sectors, so change the check to be\nbased on sectors.",
"id": "GHSA-x2v6-jx2x-c364",
"modified": "2026-07-14T15:31:27Z",
"published": "2025-09-12T18:31:10Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-39795"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-032379.html"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-082556.html"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/14beeef4aafecc8a41de534e31fb5be94739392f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/31f2f080898e50cbf2bae62d35f9f2a997547b38"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3b9d69f0e68aa6b0acd9791c45d445154a8c66e9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/418751910044649baa2b424ea31cce3fc4dcc253"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/448dfecc7ff807822ecd47a5c052acedca7d09e8"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/46aa80ef49594ed7de685ecbc673b291e9a2c159"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5e276e6ff9aacf8901b9c3265c3cdd2568c9fff2"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8b3ce085b52e674290cbfdd07034e7653ffbe4dc"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.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-X4FP-GJPV-C6R5
Vulnerability from github – Published: 2025-12-01 12:30 – Updated: 2025-12-01 15:30Uncontrolled recursion in the json2pb component in Apache bRPC (version < 1.15.0) on all platforms allows remote attackers to make the server crash via sending deep recursive json data.
Root Cause: The bRPC json2pb component uses rapidjson to parse json data from the network. The rapidjson parser uses a recursive parsing method by default. If the input json has a large depth of recursive structure, the parser function may run into stack overflow.
Affected Scenarios: Use bRPC server with protobuf message to serve http+json requests from untrusted network. Or directly use JsonToProtoMessage to convert json from untrusted input.
How to Fix: (Choose one of the following options) 1. Upgrade bRPC to version 1.15.0, which fixes this issue. 2. Apply this patch: https://github.com/apache/brpc/pull/3099
Note: No matter which option
you choose, you should know that the fix introduces a recursion depth limit with default value 100. It affects these functions:
ProtoMessageToJson, ProtoMessageToProtoJson, JsonToProtoMessage, and ProtoJsonToProtoMessage.
If your requests contain json or protobuf messages that have a depth exceeding the limit, the request will be failed after applying the fix. You can modify the gflag json2pb_max_recursion_depth to change the limit.
{
"affected": [],
"aliases": [
"CVE-2025-59789"
],
"database_specific": {
"cwe_ids": [
"CWE-674"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-12-01T11:15:48Z",
"severity": "HIGH"
},
"details": "Uncontrolled recursion in the json2pb component in Apache bRPC (version \u003c 1.15.0) on all platforms allows remote attackers to make the server crash via sending deep recursive json data.\n\nRoot Cause:\nThe bRPC\u00a0json2pb component uses rapidjson to parse json data from the network. The rapidjson parser uses a recursive parsing method by default. If the input json has a large depth of recursive structure, the parser function may run into stack overflow.\n\nAffected Scenarios:\nUse bRPC server with protobuf message to serve http+json requests from untrusted network. Or directly use\u00a0JsonToProtoMessage to convert json from\u00a0untrusted input.\n\n\n\nHow to Fix: \n(Choose one of the following options)\u00a0\n1. Upgrade bRPC to version 1.15.0, which fixes this issue.\n2. Apply this patch: https://github.com/apache/brpc/pull/3099 \n\n\n\nNote:\nNo matter which option \n\nyou choose, you should know that the fix introduces a recursion depth limit with default value 100. It affects these functions:\u00a0\n\nProtoMessageToJson, ProtoMessageToProtoJson, JsonToProtoMessage, and ProtoJsonToProtoMessage.\n\n If your requests contain json or protobuf messages that have a depth exceeding the limit, the request will be failed after applying the fix. You can modify the gflag json2pb_max_recursion_depth to change the limit.",
"id": "GHSA-x4fp-gjpv-c6r5",
"modified": "2025-12-01T15:30:17Z",
"published": "2025-12-01T12:30:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-59789"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread/ozmcsztcpxn61jxod8jo8q46jo0oc1zx"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2025/12/01/1"
}
],
"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-X6F6-J278-6544
Vulnerability from github – Published: 2025-10-03 18:31 – Updated: 2025-10-03 18:31When the module renders a Svg file that contains a element, it might end up rendering it recursively leading to stack overflow DoS
{
"affected": [],
"aliases": [
"CVE-2025-10728"
],
"database_specific": {
"cwe_ids": [
"CWE-674"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-10-03T16:16:16Z",
"severity": "CRITICAL"
},
"details": "When the module renders a Svg file that contains a \u003cpattern\u003e element, it might end up rendering it recursively\u00a0leading to stack overflow DoS",
"id": "GHSA-x6f6-j278-6544",
"modified": "2025-10-03T18:31:27Z",
"published": "2025-10-03T18:31:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-10728"
},
{
"type": "WEB",
"url": "https://codereview.qt-project.org/c/qt/qtsvg/+/654200"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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:P/AU:X/R:X/V:X/RE:H/U:Red",
"type": "CVSS_V4"
}
]
}
Mitigation
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
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.