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CVE-2026-126409

Wasmtime 47.0.0 before 48.0.8 Cross-Engine Type Confusion via StructType Supertype

Wasmtime 47.0.0 before 48.0.8, 49.0.0 before 49.0.5, and 50.0.0 before 50.0.1 contains a cross-engine type confusion vulnerability because StructType::with_finality_and_supertype does not validate that the supplied supertype belongs to the same Engine. Embedders using multiple engines that create a GC struct type with another engine's supertype can trigger runtime panics or GC heap corruption, causing denial of service; guest WebAssembly cannot trigger it.

CVSS 4.0 · 1.8 Low EPSS n/a KEV · Not listed
Vendors
Bytecodealliance
Products
Wasmtime
CVE-2026-6460

PostgreSQL type confusion after ALTER ... SET DATA TYPE executes arbitrary code

Type confusion in PostgreSQL allows an object creator to execute arbitrary code as the operating system user running the database, via ALTER ... SET DATA TYPE primarily. Other DDL attack routes exist, such as "ALTER TABLE ... ADD COLUMN; ROLLBACK; ALTER TABLE ... ADD COLUMN". The system had inadequate tracking of typed values, and values were not self-identifying. Stale values could appear in data dictionary entries, PL/pgSQL variables, and many other parts of the system. PostgreSQL Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.

CVSS 3.1 · 8.8 High EPSS n/a KEV · Not listed
Vendors
Postgresql
Products
Postgresql
CVE-2026-126874

chromium-browser: chromium-browser: Type confusion in V8

Type confusion in V8 in Google Chrome prior to 157.0.8103.78 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Vendors
Google
Products
Chrome
CVE-2026-126908

chromium-browser: chromium-browser: arbitrary code execution via type confusion in V8

Type confusion in V8 in Google Chrome prior to 157.0.8103.78 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Vendors
Google
Products
Chrome
CVE-2026-126910

chromium-browser: chromium-browser: arbitrary code execution via crafted HTML page

Type confusion in V8 in Google Chrome prior to 157.0.8103.78 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Vendors
Google
Products
Chrome
CVE-2026-18447

PostgreSQL output parameter type confusion executes arbitrary code

Type confusion in PostgreSQL SQL-language functions allows an object creator to execute arbitrary code as the operating system user running the database, via an output parameter of type "any". Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.

CVSS 3.1 · 8.8 High EPSS n/a KEV · Not listed
Vendors
Postgresql
Products
Postgresql
CVE-2026-126897

chromium-browser: chromium-browser: Type confusion in V8

Type confusion in V8 in Google Chrome prior to 157.0.8103.78 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Vendors
Google
Products
Chrome
CVE-2026-126843

chromium-browser: chromium-browser: arbitrary code execution via a crafted HTML page

Type confusion in Turbolev in Google Chrome prior to 157.0.8103.78 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Vendors
Google
Products
Chrome
CVE-2026-126868

chromium-browser: chromium-browser: Arbitrary code execution via type confusion in V8

Type confusion in V8 in Google Chrome prior to 157.0.8103.78 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Vendors
Google
Products
Chrome
CVE-2026-116309

PostgreSQL plperl blessed-reference type confusion may execute arbitrary code

Type confusion in PostgreSQL plperl may allow an object creator to execute arbitrary code, via blessing a non-hash reference into PostgreSQL::InServer::ARRAY. We have not confirmed or ruled out a way to control the pointer sufficiently to achieve security impact, but we are proceeding as though that is possible. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.

CVSS 3.1 · 8.8 High EPSS n/a KEV · Not listed
Vendors
Postgresql
Products
Postgresql
CVE-2026-116304

PostgreSQL parallel RECORD typmod use-after-free executes arbitrary code

Use after free in PostgreSQL coordination of anonymous RECORD type identifiers among parallel workers allows a database user to execute arbitrary code as the operating system user running the database, via causing one process to free a shared tuple descriptor while another process retains and later uses its address. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.

CVSS 3.1 · 8.8 High EPSS n/a KEV · Not listed
Vendors
Postgresql
Products
Postgresql
CVE-2026-116306

PostgreSQL composite-type change during field assignment executes arbitrary code

Type confusion in PostgreSQL composite-value field assignment allows an object creator to execute arbitrary code as the operating system user running the database, via changing a composite type between deforming and reforming a value. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.

CVSS 3.1 · 8.8 High EPSS n/a KEV · Not listed
Vendors
Postgresql
Products
Postgresql
CVE-2026-120141

PostgreSQL materialized set-returning function type confusion executes arbitrary code

Type confusion in PostgreSQL materialized set-returning functions allows a database user to execute arbitrary code as the operating system user running the database, via returning rows having different dynamic RECORD return types. json_populate_recordset() is one affected function. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.

CVSS 3.1 · 8.8 High EPSS n/a KEV · Not listed
Vendors
Postgresql
Products
Postgresql
CVE-2026-120142

PostgreSQL dropped-column type confusion executes arbitrary code

Type confusion in PostgreSQL anonymous RECORD types allows an object creator to execute arbitrary code as the operating system user running the database, via row types having dropped attributes in the same positions but with different widths or alignments. Within major versions 17-18, minor versions before PostgreSQL 18.7 and 17.12 are affected. Versions before PostgreSQL 17 are unaffected.

CVSS 3.1 · 8.8 High EPSS n/a KEV · Not listed
Vendors
Postgresql
Products
Postgresql
CVE-2026-120144

PostgreSQL type-cache invalidation gap executes arbitrary code

Type confusion from incomplete PostgreSQL type-cache invalidation allows an object creator to execute arbitrary code as the operating system user running the database, via a composite type change while its cache entry is being populated. Within major version 18, minor versions before PostgreSQL 18.7 are affected. Versions before PostgreSQL 18 are unaffected.

CVSS 3.1 · 8.8 High EPSS n/a KEV · Not listed
Vendors
Postgresql
Products
Postgresql
CVE-2026-120148

PostgreSQL extended-statistics pseudo-type confusion executes arbitrary code

Type confusion in PostgreSQL extended statistics allows an object creator to execute arbitrary code as the operating system user running the database, via a statistics expression of an anonymous RECORD type whose backend-local type identifier denotes a different row type in another session. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.

CVSS 3.1 · 8.1 High EPSS n/a KEV · Not listed
Vendors
Postgresql
Products
Postgresql
CVE-2026-120151

PostgreSQL plpgsql record-field type confusion executes arbitrary code

Type confusion in PostgreSQL plpgsql record-field assignment allows an object creator to execute arbitrary code as the operating system user running the database, via a reentrant domain CHECK that changes a RECORD variable's row type while a value is being cast. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.

CVSS 3.1 · 8.8 High EPSS n/a KEV · Not listed
Vendors
Postgresql
Products
Postgresql
CVE-2026-116329

PostgreSQL statistics import type confusion executes arbitrary code

Type confusion in PostgreSQL statistics import allows a table maintainer to execute arbitrary code as the operating system user running the database, via nested SET DATA TYPE during conversion of values to import. Within major version 18, minor versions before PostgreSQL 18.7 are affected. Versions before PostgreSQL 18 are unaffected.

CVSS 3.1 · 8.8 High EPSS n/a KEV · Not listed
Vendors
Postgresql
Products
Postgresql
CVE-2026-116331

PostgreSQL min/max aggregate type confusion executes arbitrary code

Type confusion in PostgreSQL min/max aggregate optimization allows an object creator to execute arbitrary code as the operating system user running the database, via a user-defined aggregate whose SORTOP option causes the planner to treat the aggregate's input and result as the same type when they differ. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.

CVSS 3.1 · 8.8 High EPSS n/a KEV · Not listed
Vendors
Postgresql
Products
Postgresql
CVE-2026-116335

PostgreSQL commutator or negator result-type confusion executes arbitrary code

Type confusion in PostgreSQL operator commutator and negator links allows an object creator to execute arbitrary code as the operating system user running the database, via linking operators having different result types or creating inconsistent reciprocal links. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.

CVSS 3.1 · 8.8 High EPSS n/a KEV · Not listed
Vendors
Postgresql
Products
Postgresql