Common Weakness Enumeration
CWE-843
AllowedAccess of Resource Using Incompatible Type ('Type Confusion')
Abstraction: Base · Status: Incomplete
The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.
1202 vulnerabilities reference this CWE, most recent first.
GHSA-PGCQ-8HV5-FRGJ
Vulnerability from github – Published: 2026-04-22 15:31 – Updated: 2026-07-24 15:32
VLAI
Details
In the Linux kernel, the following vulnerability has been resolved:
team: fix header_ops type confusion with non-Ethernet ports
Similar to commit 950803f72547 ("bonding: fix type confusion in bond_setup_by_slave()") team has the same class of header_ops type confusion.
For non-Ethernet ports, team_setup_by_port() copies port_dev->header_ops directly. When the team device later calls dev_hard_header() or dev_parse_header(), these callbacks can run with the team net_device instead of the real lower device, so netdev_priv(dev) is interpreted as the wrong private type and can crash.
The syzbot report shows a crash in bond_header_create(), but the root cause is in team: the topology is gre -> bond -> team, and team calls the inherited header_ops with its own net_device instead of the lower device, so bond_header_create() receives a team device and interprets netdev_priv() as bonding private data, causing a type confusion crash.
Fix this by introducing team header_ops wrappers for create/parse, selecting a team port under RCU, and calling the lower device callbacks with port->dev, so each callback always sees the correct net_device context.
Also pass the selected lower device to the lower parse callback, so recursion is bounded in stacked non-Ethernet topologies and parse callbacks always run with the correct device context.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2026-31502"
],
"database_specific": {
"cwe_ids": [
"CWE-843"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-04-22T14:16:48Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nteam: fix header_ops type confusion with non-Ethernet ports\n\nSimilar to commit 950803f72547 (\"bonding: fix type confusion in\nbond_setup_by_slave()\") team has the same class of header_ops type\nconfusion.\n\nFor non-Ethernet ports, team_setup_by_port() copies port_dev-\u003eheader_ops\ndirectly. When the team device later calls dev_hard_header() or\ndev_parse_header(), these callbacks can run with the team net_device\ninstead of the real lower device, so netdev_priv(dev) is interpreted as\nthe wrong private type and can crash.\n\nThe syzbot report shows a crash in bond_header_create(), but the root\ncause is in team: the topology is gre -\u003e bond -\u003e team, and team calls\nthe inherited header_ops with its own net_device instead of the lower\ndevice, so bond_header_create() receives a team device and interprets\nnetdev_priv() as bonding private data, causing a type confusion crash.\n\nFix this by introducing team header_ops wrappers for create/parse,\nselecting a team port under RCU, and calling the lower device callbacks\nwith port-\u003edev, so each callback always sees the correct net_device\ncontext.\n\nAlso pass the selected lower device to the lower parse callback, so\nrecursion is bounded in stacked non-Ethernet topologies and parse\ncallbacks always run with the correct device context.",
"id": "GHSA-pgcq-8hv5-frgj",
"modified": "2026-07-24T15:32:21Z",
"published": "2026-04-22T15:31:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31502"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0a7468ed49a6b65d34abcc6eb60e15f7f6d34da0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/20491d384d973a63fbdaf7a71e38d69b0659ea55"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/420e5aad7ba89e8f79e2dc8327b0c0c24c1c1d53"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/425000dbf17373a4ab8be9428f5dc055ef870a56"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6d3161fa3eee64d46b766fb0db33ec7f300ef52d"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-PH64-QJWG-MXWQ
Vulnerability from github – Published: 2026-08-13 15:34 – Updated: 2026-08-13 15:34
VLAI
Details
Type confusion regarding input of PostgreSQL ctid data type selectivity estimator allows an object creator to view a calculation derived from the value of an arbitrary 4-byte span of memory, via a chosen non-ctid input. While the calculation loses precision, substantial memory value recovery appears possible. Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.
Severity
8.1 (High)
{
"affected": [],
"aliases": [
"CVE-2026-14668"
],
"database_specific": {
"cwe_ids": [
"CWE-843"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-13T13:17:44Z",
"severity": "HIGH"
},
"details": "Type confusion regarding input of PostgreSQL ctid data type selectivity estimator allows an object creator to view a calculation derived from the value of an arbitrary 4-byte span of memory, via a chosen non-ctid input. While the calculation loses precision, substantial memory value recovery appears possible. Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.",
"id": "GHSA-ph64-qjwg-mxwq",
"modified": "2026-08-13T15:34:35Z",
"published": "2026-08-13T15:34:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-14668"
},
{
"type": "WEB",
"url": "https://www.postgresql.org/support/security/CVE-2026-14668"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-PHF6-JQQC-C956
Vulnerability from github – Published: 2026-09-08 18:33 – Updated: 2026-09-08 18:33
VLAI
Details
Access of resource using incompatible type ('type confusion') in Windows DHCP Server allows an unauthorized attacker to deny service over a network.
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2026-77890"
],
"database_specific": {
"cwe_ids": [
"CWE-843"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-08T18:20:38Z",
"severity": "HIGH"
},
"details": "Access of resource using incompatible type (\u0027type confusion\u0027) in Windows DHCP Server allows an unauthorized attacker to deny service over a network.",
"id": "GHSA-phf6-jqqc-c956",
"modified": "2026-09-08T18:33:21Z",
"published": "2026-09-08T18:33:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-77890"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-77890"
}
],
"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-PJPC-J872-96J4
Vulnerability from github – Published: 2026-09-08 18:33 – Updated: 2026-09-08 18:33
VLAI
Details
Access of resource using incompatible type ('type confusion') in Windows Core Messaging allows an authorized attacker to elevate privileges locally.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2026-70584"
],
"database_specific": {
"cwe_ids": [
"CWE-843"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-08T18:20:11Z",
"severity": "HIGH"
},
"details": "Access of resource using incompatible type (\u0027type confusion\u0027) in Windows Core Messaging allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-pjpc-j872-96j4",
"modified": "2026-09-08T18:33:07Z",
"published": "2026-09-08T18:33:07Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-70584"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70584"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-PM2F-26P8-MCC2
Vulnerability from github – Published: 2026-09-29 21:33 – Updated: 2026-09-29 21:33
VLAI
Details
Type confusion in V8 in Google Chrome prior to 154.0.8037.92 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2026-102328"
],
"database_specific": {
"cwe_ids": [
"CWE-843"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-29T20:17:16Z",
"severity": "HIGH"
},
"details": "Type confusion in V8 in Google Chrome prior to 154.0.8037.92 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)",
"id": "GHSA-pm2f-26p8-mcc2",
"modified": "2026-09-29T21:33:24Z",
"published": "2026-09-29T21:33:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-102328"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_01807488085.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/560536732"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-PMC4-H8JW-3HC9
Vulnerability from github – Published: 2024-08-29 00:31 – Updated: 2024-08-29 21:31
VLAI
Details
Type Confusion in V8 in Google Chrome prior to 128.0.6613.113 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2024-8194"
],
"database_specific": {
"cwe_ids": [
"CWE-843"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-08-28T23:15:06Z",
"severity": "HIGH"
},
"details": "Type Confusion in V8 in Google Chrome prior to 128.0.6613.113 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)",
"id": "GHSA-pmc4-h8jw-3hc9",
"modified": "2024-08-29T21:31:03Z",
"published": "2024-08-29T00:31:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-8194"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2024/08/stable-channel-update-for-desktop_28.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/360533914"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-PMJJ-2M89-X72G
Vulnerability from github – Published: 2022-05-24 17:49 – Updated: 2022-05-24 17:49
VLAI
Details
Type confusion in V8 in Google Chrome prior to 90.0.4430.93 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
{
"affected": [],
"aliases": [
"CVE-2021-21230"
],
"database_specific": {
"cwe_ids": [
"CWE-843"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-04-30T21:15:00Z",
"severity": "HIGH"
},
"details": "Type confusion in V8 in Google Chrome prior to 90.0.4430.93 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.",
"id": "GHSA-pmjj-2m89-x72g",
"modified": "2022-05-24T17:49:22Z",
"published": "2022-05-24T17:49:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21230"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2021/04/stable-channel-update-for-desktop_26.html"
},
{
"type": "WEB",
"url": "https://crbug.com/1198705"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EAJ42L4JFPBJATCZ7MOZQTUDGV4OEHHG"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U3GZ42MYPGD35V652ZPVPYYS7A7LVXVY"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VUZBGKGVZADNA3I24NVG7HAYYUTOSN5A"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202104-08"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2021/dsa-4911"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-PMVM-2CHP-49MC
Vulnerability from github – Published: 2026-03-10 18:31 – Updated: 2026-03-10 18:31
VLAI
Details
Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to execute code locally.
Severity
8.4 (High)
{
"affected": [],
"aliases": [
"CVE-2026-26110"
],
"database_specific": {
"cwe_ids": [
"CWE-843"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-10T18:18:39Z",
"severity": "HIGH"
},
"details": "Access of resource using incompatible type (\u0027type confusion\u0027) in Microsoft Office allows an unauthorized attacker to execute code locally.",
"id": "GHSA-pmvm-2chp-49mc",
"modified": "2026-03-10T18:31:21Z",
"published": "2026-03-10T18:31:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-26110"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26110"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-PP6J-X3QR-CJGJ
Vulnerability from github – Published: 2026-06-16 15:33 – Updated: 2026-07-15 12:31
VLAI
Details
Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152 and Firefox ESR 140.12.
Severity
5.4 (Medium)
{
"affected": [],
"aliases": [
"CVE-2026-12298"
],
"database_specific": {
"cwe_ids": [
"CWE-125",
"CWE-843"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-16T13:16:30Z",
"severity": "MODERATE"
},
"details": "Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152 and Firefox ESR 140.12.",
"id": "GHSA-pp6j-x3qr-cjgj",
"modified": "2026-07-15T12:31:49Z",
"published": "2026-06-16T15:33:48Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-12298"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2026-61"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2026-60"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2026-58"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2026-57"
},
{
"type": "WEB",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-12298.json"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2489248"
},
{
"type": "WEB",
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2041981"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2026-12298"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:39706"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:39428"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:39142"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:39141"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:39011"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:38753"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:38751"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:38750"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:38506"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:37391"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:37210"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:36103"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:36102"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:36101"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:36100"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:33445"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:30846"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:29940"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:27734"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:27733"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:27717"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-PP89-RWQV-PGH4
Vulnerability from github – Published: 2021-11-24 00:00 – Updated: 2022-01-11 00:02
VLAI
Details
Type confusion in V8 in Google Chrome prior to 95.0.4638.69 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
{
"affected": [],
"aliases": [
"CVE-2021-38001"
],
"database_specific": {
"cwe_ids": [
"CWE-843"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-11-23T22:15:00Z",
"severity": "HIGH"
},
"details": "Type confusion in V8 in Google Chrome prior to 95.0.4638.69 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.",
"id": "GHSA-pp89-rwqv-pgh4",
"modified": "2022-01-11T00:02:38Z",
"published": "2021-11-24T00:00:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-38001"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2021/10/stable-channel-update-for-desktop_28.html"
},
{
"type": "WEB",
"url": "https://crbug.com/1260577"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3W46HRT2UVHWSLZB6JZHQF6JNQWKV744"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2022/dsa-5046"
}
],
"schema_version": "1.4.0",
"severity": []
}
No mitigation information available for this CWE.
No CAPEC attack patterns related to this CWE.