CWE-400
DiscouragedUncontrolled Resource Consumption
Abstraction: Class · Status: Draft
The product does not properly control the allocation and maintenance of a limited resource.
5473 vulnerabilities reference this CWE, most recent first.
GHSA-QJVJ-64RF-P4QG
Vulnerability from github – Published: 2022-05-02 06:10 – Updated: 2022-05-02 06:10The png_decompress_chunk function in pngrutil.c in libpng 1.0.x before 1.0.53, 1.2.x before 1.2.43, and 1.4.x before 1.4.1 does not properly handle compressed ancillary-chunk data that has a disproportionately large uncompressed representation, which allows remote attackers to cause a denial of service (memory and CPU consumption, and application hang) via a crafted PNG file, as demonstrated by use of the deflate compression method on data composed of many occurrences of the same character, related to a "decompression bomb" attack.
{
"affected": [],
"aliases": [
"CVE-2010-0205"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2010-03-03T19:30:00Z",
"severity": "MODERATE"
},
"details": "The png_decompress_chunk function in pngrutil.c in libpng 1.0.x before 1.0.53, 1.2.x before 1.2.43, and 1.4.x before 1.4.1 does not properly handle compressed ancillary-chunk data that has a disproportionately large uncompressed representation, which allows remote attackers to cause a denial of service (memory and CPU consumption, and application hang) via a crafted PNG file, as demonstrated by use of the deflate compression method on data composed of many occurrences of the same character, related to a \"decompression bomb\" attack.",
"id": "GHSA-qjvj-64rf-p4qg",
"modified": "2022-05-02T06:10:56Z",
"published": "2022-05-02T06:10:56Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2010-0205"
},
{
"type": "WEB",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/56661"
},
{
"type": "WEB",
"url": "http://libpng.sourceforge.net/ADVISORY-1.4.1.html"
},
{
"type": "WEB",
"url": "http://libpng.sourceforge.net/decompression_bombs.html"
},
{
"type": "WEB",
"url": "http://lists.apple.com/archives/security-announce/2010//Nov/msg00000.html"
},
{
"type": "WEB",
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2010-March/037237.html"
},
{
"type": "WEB",
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2010-March/037355.html"
},
{
"type": "WEB",
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2010-March/037364.html"
},
{
"type": "WEB",
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2010-March/037607.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2010-05/msg00001.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2010-05/msg00002.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2010-06/msg00001.html"
},
{
"type": "WEB",
"url": "http://lists.vmware.com/pipermail/security-announce/2010/000105.html"
},
{
"type": "WEB",
"url": "http://osvdb.org/62670"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/38774"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/39251"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/41574"
},
{
"type": "WEB",
"url": "http://support.apple.com/kb/HT4435"
},
{
"type": "WEB",
"url": "http://ubuntu.com/usn/usn-913-1"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2010/dsa-2032"
},
{
"type": "WEB",
"url": "http://www.kb.cert.org/vuls/id/576029"
},
{
"type": "WEB",
"url": "http://www.mandriva.com/security/advisories?name=MDVSA-2010:063"
},
{
"type": "WEB",
"url": "http://www.mandriva.com/security/advisories?name=MDVSA-2010:064"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/38478"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id?1023674"
},
{
"type": "WEB",
"url": "http://www.vmware.com/security/advisories/VMSA-2010-0014.html"
},
{
"type": "WEB",
"url": "http://www.vupen.com/english/advisories/2010/0517"
},
{
"type": "WEB",
"url": "http://www.vupen.com/english/advisories/2010/0605"
},
{
"type": "WEB",
"url": "http://www.vupen.com/english/advisories/2010/0626"
},
{
"type": "WEB",
"url": "http://www.vupen.com/english/advisories/2010/0637"
},
{
"type": "WEB",
"url": "http://www.vupen.com/english/advisories/2010/0667"
},
{
"type": "WEB",
"url": "http://www.vupen.com/english/advisories/2010/0682"
},
{
"type": "WEB",
"url": "http://www.vupen.com/english/advisories/2010/0686"
},
{
"type": "WEB",
"url": "http://www.vupen.com/english/advisories/2010/0847"
},
{
"type": "WEB",
"url": "http://www.vupen.com/english/advisories/2010/1107"
},
{
"type": "WEB",
"url": "http://www.vupen.com/english/advisories/2010/2491"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-QJVR-CGCX-RP8G
Vulnerability from github – Published: 2022-05-13 01:01 – Updated: 2022-05-13 01:01An exploitable denial of service vulnerability exists in the processing of snmp-set commands of the Allen Bradley Micrologix 1400 Series B FRN 21.2 and below. A specially crafted snmp-set request, when sent without associated firmware flashing snmp-set commands, can cause a device power cycle resulting in downtime for the device. An attacker can send one packet to trigger this vulnerability.
{
"affected": [],
"aliases": [
"CVE-2017-12090"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-04-05T21:29:00Z",
"severity": "HIGH"
},
"details": "An exploitable denial of service vulnerability exists in the processing of snmp-set commands of the Allen Bradley Micrologix 1400 Series B FRN 21.2 and below. A specially crafted snmp-set request, when sent without associated firmware flashing snmp-set commands, can cause a device power cycle resulting in downtime for the device. An attacker can send one packet to trigger this vulnerability.",
"id": "GHSA-qjvr-cgcx-rp8g",
"modified": "2022-05-13T01:01:40Z",
"published": "2022-05-13T01:01:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-12090"
},
{
"type": "WEB",
"url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0442"
}
],
"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-QJXF-F2MG-C6MC
Vulnerability from github – Published: 2026-03-12 14:19 – Updated: 2026-06-08 19:51In versions of Tornado prior to 6.5.5, the only limit on the number of parts in multipart/form-data is the max_body_size setting (default 100MB). Since parsing occurs synchronously on the main thread, this creates the possibility of denial-of-service due to the cost of parsing very large multipart bodies with many parts.
Tornado 6.5.5 introduces new limits on the size and complexity of multipart bodies, including a default limit of 100 parts per request. These limits are configurable if needed; see tornado.httputil.ParseMultipartConfig. It is also now possible to disable multipart/form-data parsing entirely if it is not required for the application.
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 6.5.4"
},
"package": {
"ecosystem": "PyPI",
"name": "tornado"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "6.5.5"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-31958"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": true,
"github_reviewed_at": "2026-03-12T14:19:52Z",
"nvd_published_at": "2026-03-11T20:16:16Z",
"severity": "HIGH"
},
"details": "In versions of Tornado prior to 6.5.5, the only limit on the number of parts in `multipart/form-data` is the `max_body_size` setting (default 100MB). Since parsing occurs synchronously on the main thread, this creates the possibility of denial-of-service due to the cost of parsing very large multipart bodies with many parts. \n\nTornado 6.5.5 introduces new limits on the size and complexity of multipart bodies, including a default limit of 100 parts per request. These limits are configurable if needed; see `tornado.httputil.ParseMultipartConfig`. It is also now possible to disable `multipart/form-data` parsing entirely if it is not required for the application.",
"id": "GHSA-qjxf-f2mg-c6mc",
"modified": "2026-06-08T19:51:12Z",
"published": "2026-03-12T14:19:52Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/tornadoweb/tornado/security/advisories/GHSA-qjxf-f2mg-c6mc"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31958"
},
{
"type": "WEB",
"url": "https://github.com/tornadoweb/tornado/commit/119a195e290c43ad2d63a2cf012c29d43d6ed839"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/tornado/PYSEC-2026-140.yaml"
},
{
"type": "PACKAGE",
"url": "https://github.com/tornadoweb/tornado"
},
{
"type": "WEB",
"url": "https://github.com/tornadoweb/tornado/releases/tag/v6.5.5"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2026/04/msg00000.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"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Tornado is vulnerable to DoS due to too many multipart parts"
}
GHSA-QM3H-46XC-W7W4
Vulnerability from github – Published: 2025-11-05 17:48 – Updated: 2025-11-05 17:48An issue was discovered in libarchive bsdtar before version 3.8.1 in function apply_substitution in file tar/subst.c when processing crafted -s substitution rules. This can cause unbounded memory allocation and lead to denial of service (Out-of-Memory crash).
{
"affected": [],
"aliases": [
"CVE-2025-60753"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-11-05T16:15:40Z",
"severity": "MODERATE"
},
"details": "An issue was discovered in libarchive bsdtar before version 3.8.1 in function apply_substitution in file tar/subst.c when processing crafted -s substitution rules. This can cause unbounded memory allocation and lead to denial of service (Out-of-Memory crash).",
"id": "GHSA-qm3h-46xc-w7w4",
"modified": "2025-11-05T17:48:28Z",
"published": "2025-11-05T17:48:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-60753"
},
{
"type": "WEB",
"url": "https://github.com/libarchive/libarchive/issues/2725"
},
{
"type": "WEB",
"url": "https://github.com/Papya-j/CVE/tree/main/CVE-2025-60753"
}
],
"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-QMF9-6JQF-J8FQ
Vulnerability from github – Published: 2023-11-02 06:30 – Updated: 2024-09-20 16:05An issue was discovered in Django 3.2 before 3.2.23, 4.1 before 4.1.13, and 4.2 before 4.2.7. The NFKC normalization is slow on Windows. As a consequence, django.contrib.auth.forms.UsernameField is subject to a potential DoS (denial of service) attack via certain inputs with a very large number of Unicode characters.
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "Django"
},
"ranges": [
{
"events": [
{
"introduced": "3.2a1"
},
{
"fixed": "3.2.23"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "Django"
},
"ranges": [
{
"events": [
{
"introduced": "4.1a1"
},
{
"fixed": "4.1.13"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "Django"
},
"ranges": [
{
"events": [
{
"introduced": "4.2a1"
},
{
"fixed": "4.2.7"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2023-46695"
],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-770"
],
"github_reviewed": true,
"github_reviewed_at": "2023-11-02T21:26:14Z",
"nvd_published_at": "2023-11-02T06:15:08Z",
"severity": "HIGH"
},
"details": "An issue was discovered in Django 3.2 before 3.2.23, 4.1 before 4.1.13, and 4.2 before 4.2.7. The NFKC normalization is slow on Windows. As a consequence, django.contrib.auth.forms.UsernameField is subject to a potential DoS (denial of service) attack via certain inputs with a very large number of Unicode characters.",
"id": "GHSA-qmf9-6jqf-j8fq",
"modified": "2024-09-20T16:05:09Z",
"published": "2023-11-02T06:30:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-46695"
},
{
"type": "WEB",
"url": "https://github.com/django/django/commit/048a9ebb6ea468426cb4e57c71572cbbd975517f"
},
{
"type": "WEB",
"url": "https://github.com/django/django/commit/4965bfdde2e5a5c883685019e57d123a3368a75e"
},
{
"type": "WEB",
"url": "https://github.com/django/django/commit/f9a7fb8466a7ba4857eaf930099b5258f3eafb2b"
},
{
"type": "WEB",
"url": "https://docs.djangoproject.com/en/4.2/releases/security"
},
{
"type": "PACKAGE",
"url": "https://github.com/django/django"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2023-222.yaml"
},
{
"type": "WEB",
"url": "https://groups.google.com/forum/#!forum/django-announce"
},
{
"type": "WEB",
"url": "https://groups.google.com/forum/#%21forum/django-announce"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20231214-0001"
},
{
"type": "WEB",
"url": "https://www.djangoproject.com/weblog/2023/nov/01/security-releases"
}
],
"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"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Django potential denial of service vulnerability in UsernameField on Windows"
}
GHSA-QMVJ-4QR9-V547
Vulnerability from github – Published: 2023-11-27 23:27 – Updated: 2023-12-04 15:16Summary
A vulnerability was fond in Knative Serving that could allow an attacker to crash the Knative Serving autoscaler resulting in a denial of service. The attacker would need to have compromised one pod in the Knative Serving deployment, and with that position they could launch the attack against the autoscaler.
When the autoscaler scrapes the metrics of pods, it sends a request to the /metrics endpoint of each pod and reads the response. The attacker would need to detect the request from the autoscaler to the /metrics endpoint of the pod they had compromised and send a malicious response back to the autoscaler. At this point, the autoscaler would crash. The root cause of the vulnerability was a memory exhaustion issue in the autoscaler that the attacker could trigger with the malicious reponse.
The vulnerability would allow a privilege escalation by the attacker from controlling one point to having negative impact on the entire Knative Serving deployment.
Impact
All users are vulnerable to this; Users that have not had any of their pods compromised are not at risk of this vulnerability.
Mitigation
The vulnerability has been patched in v1.10.5, v1.11.3 and v1.12.0
Credits
The vulnerability was reported by Ada Logics during an ongoing security audit of Knative involving Ada Logics, the Knative maintainers, OSTIF and CNCF.
{
"affected": [
{
"package": {
"ecosystem": "Go",
"name": "knative.dev/serving"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.39.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2023-48713"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": true,
"github_reviewed_at": "2023-11-27T23:27:04Z",
"nvd_published_at": "2023-11-28T04:15:07Z",
"severity": "MODERATE"
},
"details": "### Summary\nA vulnerability was fond in Knative Serving that could allow an attacker to crash the Knative Serving autoscaler resulting in a denial of service. The attacker would need to have compromised one pod in the Knative Serving deployment, and with that position they could launch the attack against the autoscaler. \nWhen the autoscaler scrapes the metrics of pods, it sends a request to the `/metrics` endpoint of each pod and reads the response. The attacker would need to detect the request from the autoscaler to the `/metrics` endpoint of the pod they had compromised and send a malicious response back to the autoscaler. At this point, the autoscaler would crash. The root cause of the vulnerability was a memory exhaustion issue in the autoscaler that the attacker could trigger with the malicious reponse.\n\nThe vulnerability would allow a privilege escalation by the attacker from controlling one point to having negative impact on the entire Knative Serving deployment.\n\n### Impact\nAll users are vulnerable to this; Users that have not had any of their pods compromised are not at risk of this vulnerability. \n\n### Mitigation\nThe vulnerability has been patched in v1.10.5, v1.11.3 and v1.12.0\n\n### Credits\nThe vulnerability was reported by Ada Logics during an ongoing security audit of Knative involving Ada Logics, the Knative maintainers, OSTIF and CNCF.",
"id": "GHSA-qmvj-4qr9-v547",
"modified": "2023-12-04T15:16:16Z",
"published": "2023-11-27T23:27:04Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/knative/serving/security/advisories/GHSA-qmvj-4qr9-v547"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-48713"
},
{
"type": "WEB",
"url": "https://github.com/knative/serving/commit/012ee2509231b80b7842139bfabc30516d3026ca"
},
{
"type": "WEB",
"url": "https://github.com/knative/serving/commit/101f814112b9ca0767f457e7e616b46205551cf1"
},
{
"type": "WEB",
"url": "https://github.com/knative/serving/commit/fff40ef7bac9be8380ec3d1c70fc15b57093382a"
},
{
"type": "PACKAGE",
"url": "https://github.com/knative/serving"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "Knative Serving vulnerable to attacker-controlled pod causing denial of service of autoscaler"
}
GHSA-QP7G-8WJQ-92RC
Vulnerability from github – Published: 2026-05-28 21:32 – Updated: 2026-05-28 21:32Vulnerability in Oracle REST Data Services (component: Mongoapi). Supported versions that are affected are 24.2.0-26.1.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTPS to compromise Oracle REST Data Services. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle REST Data Services. CVSS 3.1 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
{
"affected": [],
"aliases": [
"CVE-2026-46829"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-28T21:16:32Z",
"severity": "HIGH"
},
"details": "Vulnerability in Oracle REST Data Services (component: Mongoapi). Supported versions that are affected are 24.2.0-26.1.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTPS to compromise Oracle REST Data Services. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle REST Data Services. CVSS 3.1 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).",
"id": "GHSA-qp7g-8wjq-92rc",
"modified": "2026-05-28T21:32:06Z",
"published": "2026-05-28T21:32:06Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46829"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cspumay2026.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-QP9Q-4RH4-M8JC
Vulnerability from github – Published: 2026-06-03 03:30 – Updated: 2026-06-03 03:30A flaw has been found in dask up to 3.0. Affected by this issue is the function nunique_approx of the file dask/dataframe/hyperloglog.py of the component HLL Handler. This manipulation causes resource consumption. The attack is possible to be carried out remotely. A high degree of complexity is needed for the attack. The exploitation is known to be difficult. The pull request to fix this issue awaits acceptance.
{
"affected": [],
"aliases": [
"CVE-2026-10705"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-03T02:16:17Z",
"severity": "LOW"
},
"details": "A flaw has been found in dask up to 3.0. Affected by this issue is the function nunique_approx of the file dask/dataframe/hyperloglog.py of the component HLL Handler. This manipulation causes resource consumption. The attack is possible to be carried out remotely. A high degree of complexity is needed for the attack. The exploitation is known to be difficult. The pull request to fix this issue awaits acceptance.",
"id": "GHSA-qp9q-4rh4-m8jc",
"modified": "2026-06-03T03:30:25Z",
"published": "2026-06-03T03:30:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-10705"
},
{
"type": "WEB",
"url": "https://github.com/dask/dask/issues/12403"
},
{
"type": "WEB",
"url": "https://github.com/dask/dask/pull/12401"
},
{
"type": "WEB",
"url": "https://github.com/dask/dask"
},
{
"type": "WEB",
"url": "https://vuldb.com/cve/CVE-2026-10705"
},
{
"type": "WEB",
"url": "https://vuldb.com/submit/831411"
},
{
"type": "WEB",
"url": "https://vuldb.com/vuln/368018"
},
{
"type": "WEB",
"url": "https://vuldb.com/vuln/368018/cti"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/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-QPGP-93VX-G8V8
Vulnerability from github – Published: 2026-06-08 23:55 – Updated: 2026-06-08 23:55Impact
PROXY protocol support for Puma was added in version 5.5.0.
When PROXY protocol v1 support is enabled, Puma reads incoming bytes into an internal buffer. It waits for "\r\n" to determine whether a PROXY v1 line is present. If an attacker opens a TCP connection and continuously sends bytes without CRLF, Puma keeps appending to this pre-parse buffer.
This can cause unbounded in-process memory growth and additional CPU cost from repeatedly scanning the growing buffer for CRLF. A single, unauthenticated TCP connection can drive significant memory growth and may cause process/container OOM or degraded availability.
Only Puma servers using the following non-default config are affected:
set_remote_address proxy_protocol: :v1
Patches
Users should upgrade to versions 7.2.1 or 8.0.2.
Workarounds
- Disable PROXY protocol v1 parsing if it is not required:
ruby
# remove/comment this:
# set_remote_address proxy_protocol: :v1
- Restrict direct network access to Puma listeners using PROXY protocol:
- Only allow trusted load balancers/reverse proxies to connect.
- Block arbitrary client TCP access with firewall/security group rules.
Resources
{
"affected": [
{
"package": {
"ecosystem": "RubyGems",
"name": "puma"
},
"ranges": [
{
"events": [
{
"introduced": "8.0.0"
},
{
"fixed": "8.0.2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "RubyGems",
"name": "puma"
},
"ranges": [
{
"events": [
{
"introduced": "5.5.0"
},
{
"fixed": "7.2.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-47736"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": true,
"github_reviewed_at": "2026-06-08T23:55:44Z",
"nvd_published_at": null,
"severity": "HIGH"
},
"details": "### Impact\n\n[PROXY protocol support for Puma](https://github.com/puma/puma/issues/2651) was added in version 5.5.0.\n\nWhen PROXY protocol v1 support is enabled, Puma reads incoming bytes into an internal buffer. It waits for \"\\r\\n\" to determine whether a PROXY v1 line is present. If an attacker opens a TCP connection and continuously sends bytes without CRLF, Puma keeps appending to this pre-parse buffer.\n\nThis can cause unbounded in-process memory growth and additional CPU cost from repeatedly scanning the growing buffer for CRLF. A single, unauthenticated TCP connection can drive significant memory growth and may cause process/container OOM or degraded availability.\n\n**Only Puma servers using the following non-default config are affected:**\n\n```ruby\n set_remote_address proxy_protocol: :v1\n```\n\n### Patches\n\nUsers should upgrade to versions 7.2.1 or 8.0.2.\n\n### Workarounds\n\n- Disable PROXY protocol v1 parsing if it is not required:\n\n ```ruby\n # remove/comment this:\n # set_remote_address proxy_protocol: :v1\n ```\n\n - Restrict direct network access to Puma listeners using PROXY protocol:\n - Only allow trusted load balancers/reverse proxies to connect.\n - Block arbitrary client TCP access with firewall/security group rules.\n\n### Resources\n- [HAProxy PROXY protocol specification](https://www.haproxy.org/download/1.8/doc/proxy-protocol.txt)\n- [CWE-400: Uncontrolled Resource Consumption](https://cwe.mitre.org/data/definitions/400.html)\n- [CWE-770: Allocation of Resources Without Limits or Throttling](https://cwe.mitre.org/data/definitions/770.html)\n- [Puma `set_remote_address` documentation](https://github.com/puma/puma/blob/master/lib/puma/dsl.rb)\n- [Puma client PROXY protocol parsing code](https://github.com/puma/puma/blob/master/lib/puma/client.rb)\n- [Puma constants, including `PROXY_PROTOCOL_V1_REGEX`](https://github.com/puma/puma/blob/master/lib/puma/const.rb)",
"id": "GHSA-qpgp-93vx-g8v8",
"modified": "2026-06-08T23:55:44Z",
"published": "2026-06-08T23:55:44Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/puma/puma/security/advisories/GHSA-qpgp-93vx-g8v8"
},
{
"type": "PACKAGE",
"url": "https://github.com/puma/puma"
},
{
"type": "WEB",
"url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/puma/CVE-2026-47736.yml"
},
{
"type": "WEB",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-47736"
}
],
"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": "Puma PROXY Protocol v1 Parser Allows Remote Memory Exhaustion "
}
GHSA-QPGV-G792-WH6X
Vulnerability from github – Published: 2021-08-25 20:54 – Updated: 2021-08-19 17:21An issue was discovered in the parse_duration crate through 2021-03-18 for Rust. It allows attackers to cause a denial of service (CPU and memory consumption) via a duration string with a large exponent.
{
"affected": [
{
"package": {
"ecosystem": "crates.io",
"name": "parse_duration"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "2.1.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2021-29932"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": true,
"github_reviewed_at": "2021-08-19T17:21:25Z",
"nvd_published_at": "2021-04-01T05:15:00Z",
"severity": "HIGH"
},
"details": "An issue was discovered in the parse_duration crate through 2021-03-18 for Rust. It allows attackers to cause a denial of service (CPU and memory consumption) via a duration string with a large exponent.",
"id": "GHSA-qpgv-g792-wh6x",
"modified": "2021-08-19T17:21:25Z",
"published": "2021-08-25T20:54:04Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-29932"
},
{
"type": "WEB",
"url": "https://github.com/zeta12ti/parse_duration/issues/21"
},
{
"type": "PACKAGE",
"url": "https://github.com/zeta12ti/parse_duration"
},
{
"type": "WEB",
"url": "https://rustsec.org/advisories/RUSTSEC-2021-0041.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"
}
],
"summary": "Uncontrolled Resource Consumption in parse_duration"
}
Mitigation
Design throttling mechanisms into the system architecture. The best protection is to limit the amount of resources that an unauthorized user can cause to be expended. A strong authentication and access control model will help prevent such attacks from occurring in the first place. The login application should be protected against DoS attacks as much as possible. Limiting the database access, perhaps by caching result sets, can help minimize the resources expended. To further limit the potential for a DoS attack, consider tracking the rate of requests received from users and blocking requests that exceed a defined rate threshold.
Mitigation
- Mitigation of resource exhaustion attacks requires that the target system either:
- The first of these solutions is an issue in itself though, since it may allow attackers to prevent the use of the system by a particular valid user. If the attacker impersonates the valid user, they may be able to prevent the user from accessing the server in question.
- The second solution is simply difficult to effectively institute -- and even when properly done, it does not provide a full solution. It simply makes the attack require more resources on the part of the attacker.
- recognizes the attack and denies that user further access for a given amount of time, or
- uniformly throttles all requests in order to make it more difficult to consume resources more quickly than they can again be freed.
Mitigation
Ensure that protocols have specific limits of scale placed on them.
Mitigation
Ensure that all failures in resource allocation place the system into a safe posture.
CAPEC-147: XML Ping of the Death
An attacker initiates a resource depletion attack where a large number of small XML messages are delivered at a sufficiently rapid rate to cause a denial of service or crash of the target. Transactions such as repetitive SOAP transactions can deplete resources faster than a simple flooding attack because of the additional resources used by the SOAP protocol and the resources necessary to process SOAP messages. The transactions used are immaterial as long as they cause resource utilization on the target. In other words, this is a normal flooding attack augmented by using messages that will require extra processing on the target.
CAPEC-227: Sustained Client Engagement
An adversary attempts to deny legitimate users access to a resource by continually engaging a specific resource in an attempt to keep the resource tied up as long as possible. The adversary's primary goal is not to crash or flood the target, which would alert defenders; rather it is to repeatedly perform actions or abuse algorithmic flaws such that a given resource is tied up and not available to a legitimate user. By carefully crafting a requests that keep the resource engaged through what is seemingly benign requests, legitimate users are limited or completely denied access to the resource.
CAPEC-492: Regular Expression Exponential Blowup
An adversary may execute an attack on a program that uses a poor Regular Expression(Regex) implementation by choosing input that results in an extreme situation for the Regex. A typical extreme situation operates at exponential time compared to the input size. This is due to most implementations using a Nondeterministic Finite Automaton(NFA) state machine to be built by the Regex algorithm since NFA allows backtracking and thus more complex regular expressions.