CVE-2026-115383
- Source
- https://cve.org/CVERecord?id=CVE-2026-115383
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-115383.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-115383
- Aliases
-
- GHSA-cfhf-m2cr-62wj
- RUSTSEC-2026-0325
- Downstream
UBUNTU (1)
- Published
- 2026-10-22T19:13:50Z
- Modified
- 2026-11-05T21:15:51Z
- Severity
-
- 5.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- Wasmtime 47.0.0 before 48.0.4 and 49.0.0 before 49.0.2 GC Heap Corruption via Tag Imports
- Details
-
Wasmtime 47.0.0 before 48.0.4 and 49.0.0 before 49.0.2 contains an improper validation vulnerability that accepts components whose core modules import WebAssembly tags with a subtype of the original type. Malicious guests can mis-type exception object payloads to corrupt the GC heap, causing Wasmtime to panic when the exceptions proposal is enabled.
- Database specific
{ "cna_assigner": "VulnCheck", "cwe_ids": [ "CWE-1287" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/115xxx/CVE-2026-115383.json" }- References
-
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/115xxx/CVE-2026-115383.json
- https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-cfhf-m2cr-62wj
- https://nvd.nist.gov/vuln/detail/CVE-2026-115383
- https://www.vulncheck.com/advisories/wasmtime-47.0.0-before-48.0.4-and-49.0.0-before-49.0.2-gc-heap-corruption-via-tag-imports
Affected packages
Git / github.com/bytecodealliance/wasmtime
Affected ranges
- Type
- GIT
- Repo
- https://github.com/bytecodealliance/wasmtime
- Events
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "47.0.0" }, { "fixed": "48.0.4" } ], "source": "AFFECTED_FIELD", "strategy": "StandardRange" }, { "range": [ { "introduced": "49.0.0" }, { "fixed": "49.0.2" } ], "source": "AFFECTED_FIELD", "strategy": "StandardRange" } ] }