CVE-2026-34983Low
ANC
ANC
Anchore Vulnerability Database overrides
Supplementary feed layered on top of upstream sources. Anchore maintainers publish override records to suppress known false positives and fill CPE/PURL gaps that would otherwise cause Grype and similar scanners to mis-report a system.
Region
US
Updates
6 ч
License
Apache-2.0
Curated corrections to the Anchore/Grype vulnerability database: false-positive suppressions, missing CPE mappings and distro-specific backport fixes.
https://github.com/anchore/grype-db →Share link
Anyone with the link can open this vulnerability.
Wasmtime is a runtime for WebAssembly. In 43.0.0, cloning a wasmtime::Linker is unsound and can result in use-after-free bugs. This bug is …
CVSS
1.0
Low
EPSS
0.00
p2
Published
2026-01-01
Updated
2026-01-01
Description
Wasmtime is a runtime for WebAssembly. In 43.0.0, cloning a wasmtime::Linker is unsound and can result in use-after-free bugs. This bug is not controllable by guest Wasm programs. It can only be triggered by a specific sequence of embedder API calls made by the host. Specifically, the following steps must occur to trigger the bug clone a wasmtime::Linker, drop the original linker instance, use the new, cloned linker instance, resulting in a use-after-free. This vulnerability is fixed in 43.0.1.
Tags · CWE
CWE-416
CWE-416VariantStable
Use After Free
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
https://cwe.mitre.org/data/definitions/416.html →Open in CWE collection →Affected products
Wasmtime
CVSS vector
CVSS:4.0/AV:P/AC:H/AT:P/PR:H/UI:A/VC:L/VI:L/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
Timeline
2026-01-01
Published
2026-01-01
Updated
CVSS 3.1 breakdown
Attack Vector
AV: P
Physical (P)
Attack Complexity
AC: H
High (H)
Attack Requirements
AT: P
Present
Privileges Required
PR: H
High (H)
User Interaction
UI: A
Active
Vulnerable System Confidentiality
VC: L
Low (L)
Vulnerable System Integrity
VI: L
Low (L)
Vulnerable System Availability
VA: L
Low (L)
Subsequent System Confidentiality
SC: N
None (N)
Subsequent System Integrity
SI: N
None (N)
Subsequent System Availability
SA: N
None (N)
Exploit Code Maturity
E: X
Not Defined
Confidentiality Requirement
CR: X
Not Defined
Integrity Requirement
IR: X
Not Defined
Availability Requirement
AR: X
Not Defined
Modified Attack Vector
MAV: X
Not Defined
Modified Attack Complexity
MAC: X
Not Defined
Modified Attack Requirements
MAT: X
Not Defined
Modified Privileges Required
MPR: X
Not Defined
Modified User Interaction
MUI: X
Not Defined
Modified Vulnerable System Confidentiality
MVC: X
Not Defined
Modified Vulnerable System Integrity
MVI: X
Not Defined
Modified Vulnerable System Availability
MVA: X
Not Defined
Modified Subsequent System Confidentiality
MSC: X
Not Defined
Modified Subsequent System Integrity
MSI: X
Not Defined
Modified Subsequent System Availability
MSA: X
Not Defined
s
S: X
X
au
AU: X
X
r
R: X
X
v
V: X
X
re
RE: X
X
u
U: X
X
Exploit indicators
EPSS
0.001 · p2
Known exploited (KEV)
No
Known exploits — Сканер-ВС
No Сканер-ВС checks registered for this vulnerability yet.
Affected products
| Product | Vendor | Status |
|---|---|---|
| Tracked | ||
| rust-wasmtime | Tracked | |
| rust-wasmtime | Tracked | |
| wasmtime | * | Tracked |
Source databases
ANC
ANC
Anchore Vulnerability Database overrides
Supplementary feed layered on top of upstream sources. Anchore maintainers publish override records to suppress known false positives and fill CPE/PURL gaps that would otherwise cause Grype and similar scanners to mis-report a system.
Region
US
Updates
6 ч
License
Apache-2.0
Curated corrections to the Anchore/Grype vulnerability database: false-positive suppressions, missing CPE mappings and distro-specific backport fixes.
https://github.com/anchore/grype-db →DEB
DEB
Debian Security Advisories (DSA)
DSAs are published by the Debian Security Team for issues affecting the stable distribution. The downstream tracker (security-tracker.debian.org) additionally maps every CVE to its package-level status across all supported suites.
Region
Intl.
Updates
1 ч
License
Public Domain
Advisories covering the Debian stable and oldstable releases. Ship notes include the exact .deb version that remediates each issue.
https://www.debian.org/security/ →CVE
CVE
National Vulnerability Database
NVD is the U.S. government repository of standards-based vulnerability management data, built on top of the MITRE CVE list. Every record includes CPE applicability statements, CVSS v2 and v3.x base scores, CWE mappings and cross-references to advisories.
Region
US
Updates
15 min
License
Public Domain
Comprehensive catalog of publicly disclosed vulnerabilities with CPE matches, CVSS scoring and reference URLs. De-facto standard for cross-vendor correlation.
https://nvd.nist.gov →