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OSV
OSV
added yesterday2 views

GHSA-2R75-CXRJ-CMPH wasmtime-wasi: WASI path_open(TRUNCATE) bypasses `FilePerms::WRITE` host restriction

Summary In wasmtime-wasi, when a filesystem preopen is given DirPerms::all and FilePerms::READ without FilePerms::WRITE, this wasmtime-wasi enforced access control mechanism can be bypassed by using the wasip2 descriptor.open-at or wasip1 pathopen interfaces by opening a file with...

7.5CVSS5.5AI score
Exploits0References7
Github Security Blog
Github Security Blog
added yesterday4 views

wasmtime-wasi: WASI path_open(TRUNCATE) bypasses `FilePerms::WRITE` host restriction

Summary In wasmtime-wasi, when a filesystem preopen is given DirPerms::all and FilePerms::READ without FilePerms::WRITE, this wasmtime-wasi enforced access control mechanism can be bypassed by using the wasip2 descriptor.open-at or wasip1 pathopen interfaces by opening a file with...

5.5AI score
Exploits0References7Affected Software1
OSV
OSV
added 5 days ago2 views

OPENSUSE-SU-2026:20863-1 Security update for tree-sitter

This update for tree-sitter fixes the following issue - CVE-2026-44216: wasmtime: allocation of a table exceeding the size of the host's address space leads to panic bsc1265300...

7.5CVSS5.8AI score0.00049EPSS
Exploits0References2
OSV
OSV
added 2026/05/21 2:49 p.m.4 views

MAL-2026-4762 Malicious code in pgrayy-wasmtime (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector e7c9cfd90d6de2acd86d50019dfa4a2b140ac9246fdcbae8d7aaa3d17bd4af6e The distribution is published as pgrayy-wasmtime but its toplevel.txt declares the top-level import name as wasmtime, and the entire Python source tr...

5.9AI score
Exploits0References2
OSSF Malicious Packages
OSSF Malicious Packages
added 2026/05/21 2:49 p.m.8 views

Malicious code in pgrayy-wasmtime (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector e7c9cfd90d6de2acd86d50019dfa4a2b140ac9246fdcbae8d7aaa3d17bd4af6e The distribution is published as pgrayy-wasmtime but its toplevel.txt declares the top-level import name as wasmtime, and the entire Python source tr...

5.9AI score
Exploits0References2
OSV
OSV
added 2026/05/21 12:0 p.m.5 views

RUSTSEC-2026-0149 WASI path_open(TRUNCATE) bypasses `FilePerms::WRITE` host restriction

This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-2r75-cxrj-cmph For more information see the GitHub-hosted security advisory...

7.5CVSS5.8AI score
Exploits0References3
RustSec
RustSec
added 2026/05/21 12:0 p.m.10 views

WASI path_open(TRUNCATE) bypasses `FilePerms::WRITE` host restriction

This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-2r75-cxrj-cmph For more information see the GitHub-hosted security advisory...

5.8AI score
Exploits0Affected Software1
Positive Technologies
Positive Technologies
added 2026/05/21 12:0 a.m.8 views

PT-2026-42815

Name of the Vulnerable Software and Affected Versions wasmtime-wasi affected versions not specified Description An access control mechanism bypass exists when a filesystem preopen is configured with DirPerms::all and FilePerms::READ without FilePerms::WRITE. This allows bypassing restrictions by...

7.5CVSS5.8AI score
Exploits0References10
RedhatCVE
RedhatCVE
added 2026/05/15 12:0 p.m.10 views

CVE-2026-44216

A flaw was found in Wasmtime, a runtime for WebAssembly. A remote attacker could exploit an arithmetic overflow vulnerability by instantiating a WebAssembly module or component that attempts to allocate an extremely large table using the WebAssembly memory64 proposal. This flaw causes Wasmtime to...

7.5CVSS5.8AI score0.00049EPSS
Exploits0References4
SUSE CVE
SUSE CVE
added 2026/05/15 1:58 a.m.7 views

SUSE CVE-2026-44216

Wasmtime is a runtime for WebAssembly. From 30.0.0 to 36.0.8, 43.0.2, and 44.0.1, Wasmtime's allocation logic for a WebAssembly table contained checked arithmetic which panicked on overflow. This overflow is possible to trigger, and thus panic, when a table with an extremely large size is...

7.5CVSS6AI score0.00049EPSS
Exploits0References3
NVD
NVD
added 2026/05/14 3:16 p.m.8 views

CVE-2026-44216

Wasmtime is a runtime for WebAssembly. From 30.0.0 to 36.0.8, 43.0.2, and 44.0.1, Wasmtime's allocation logic for a WebAssembly table contained checked arithmetic which panicked on overflow. This overflow is possible to trigger, and thus panic, when a table with an extremely large size is...

7.5CVSS0.00049EPSS
Exploits0References1
UbuntuCve
UbuntuCve
added 2026/05/14 3:16 p.m.7 views

CVE-2026-44216

Wasmtime is a runtime for WebAssembly. From 30.0.0 to 36.0.8, 43.0.2, and 44.0.1, Wasmtime's allocation logic for a WebAssembly table contained checked arithmetic which panicked on overflow. This overflow is possible to trigger, and thus panic, when a table with an extremely large size is...

7.5CVSS6AI score0.00049EPSS
Exploits0References2
OSV
OSV
added 2026/05/14 3:16 p.m.4 views

UBUNTU-CVE-2026-44216

Wasmtime is a runtime for WebAssembly. From 30.0.0 to 36.0.8, 43.0.2, and 44.0.1, Wasmtime's allocation logic for a WebAssembly table contained checked arithmetic which panicked on overflow. This overflow is possible to trigger, and thus panic, when a table with an extremely large size is...

7.5CVSS6AI score0.00049EPSS
Exploits0References3
Vulnrichment
Vulnrichment
added 2026/05/14 2:54 p.m.7 views

CVE-2026-44216 Wasmtime: Panic when allocating a table exceeding the size of the host's address space

Wasmtime is a runtime for WebAssembly. From 30.0.0 to 36.0.8, 43.0.2, and 44.0.1, Wasmtime's allocation logic for a WebAssembly table contained checked arithmetic which panicked on overflow. This overflow is possible to trigger, and thus panic, when a table with an extremely large size is...

5.9CVSS6AI score0.00049EPSS
Exploits0References1
Debian CVE
Debian CVE
added 2026/05/14 2:54 p.m.8 views

CVE-2026-44216

Wasmtime is a runtime for WebAssembly. From 30.0.0 to 36.0.8, 43.0.2, and 44.0.1, Wasmtime's allocation logic for a WebAssembly table contained checked arithmetic which panicked on overflow. This overflow is possible to trigger, and thus panic, when a table with an extremely large size is...

7.5CVSS6AI score0.00049EPSS
Exploits0
Cvelist
Cvelist
added 2026/05/14 2:54 p.m.33 views

CVE-2026-44216 Wasmtime: Panic when allocating a table exceeding the size of the host's address space

Wasmtime is a runtime for WebAssembly. From 30.0.0 to 36.0.8, 43.0.2, and 44.0.1, Wasmtime's allocation logic for a WebAssembly table contained checked arithmetic which panicked on overflow. This overflow is possible to trigger, and thus panic, when a table with an extremely large size is...

5.9CVSS0.00049EPSS
Exploits0References1
CVE
CVE
added 2026/05/14 2:54 p.m.7 views

CVE-2026-44216

Wasmtime (WebAssembly runtime) contains a vulnerability in its allocation logic for WebAssembly tables: checked arithmetic may panic on overflow when allocating extremely large tables (possible with memory64). Affects Wasmtime versions 30.0.0–36.0.8, 43.0.2, and 44.0.1. The panic occurs during cr...

7.5CVSS6AI score0.00049EPSS
Exploits0References1Affected Software1
ATTACKERKB
ATTACKERKB
added 2026/05/14 2:54 p.m.7 views

CVE-2026-44216

Wasmtime is a runtime for WebAssembly. From 30.0.0 to 36.0.8, 43.0.2, and 44.0.1, Wasmtime's allocation logic for a WebAssembly table contained checked arithmetic which panicked on overflow. This overflow is possible to trigger, and thus panic, when a table with an extremely large size is...

5.9CVSS6AI score0.00049EPSS
Exploits0References2Affected Software1
EUVD
EUVD
added 2026/05/14 2:54 p.m.8 views

EUVD-2026-30304

Wasmtime is a runtime for WebAssembly. From 30.0.0 to 36.0.8, 43.0.2, and 44.0.1, Wasmtime's allocation logic for a WebAssembly table contained checked arithmetic which panicked on overflow. This overflow is possible to trigger, and thus panic, when a table with an extremely large size is...

5.9CVSS6AI score0.00049EPSS
Exploits0References1
OSV
OSV
added 2026/05/14 8:9 a.m.3 views

SUSE-SU-2026:21789-1 Security update for tree-sitter

This update for tree-sitter fixes the following issues Security issues: - CVE-2026-34941: wasmtime: crafted input string can lead to an out-of-bound read bsc1261871. - CVE-2026-34942: wasmtime: unaligned pointers can lead to a denial of service bsc1261894. - CVE-2026-34943: wasmtime: lifting flag...

9.9CVSS5.8AI score0.00058EPSS
Exploits0References23
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