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Vulnerabilities

Vulnerability · CVE-2026-115393

Stores can mix up type indices between engines

Published Jul 31, 2026 · catalog updated Oct 24, 2026 · Red Hat Red Hat Enterprise Linux

Last checked Oct 29, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-115393. EPSS is 0.09%. Act only if a listed version of Red Hat Red Hat Enterprise Linux is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Low3.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.09%
Remediation
Advisory link
Affected products
crates.io wasmtime

This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-hgjw-h833-99q9 For more information see the GitHub-hosted security advisory.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • crates.io wasmtime0.0.0-0 → 24.0.12

How to fix CVE-2026-115393

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-115393. EPSS is 0.09%. Act only if a listed version of Red Hat Red Hat Enterprise Linux is installed.

Which versions are affected?

Compare what you have installed with 0.0.0-0 → 24.0.12. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-843: Access of Resource Using Incompatible Type (Type Confusion). EPSS 0.09%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 22, 2026 · Red Hat Security Data

    Detected

    wasmtime: wasmtime: Memory corruption via cross-engine object validation failure

  2. Oct 23, 2026 · GitHub Advisory Database

    Fix available

    wasmtime fixed in 24.0.12

  3. Oct 23, 2026 · GitHub Advisory Database

    Fix available

    wasmtime fixed in 24.0.12

  4. Oct 23, 2026 · GitHub Advisory Database

    Updated

    This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-hgjw-h833-99q9 For more information see the GitHub-hosted security advisory.

  5. Oct 24, 2026 · GitHub Advisory Database

    Updated

    This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-hgjw-h833-99q9 For more information see the GitHub-hosted security advisory.

Sources

References

Freshness

Last verified in this catalog Oct 29, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 29, 2026
  • GitHub Advisory DatabaseOct 26, 2026
  • OpenSSF OSV / OSV ScannerOct 26, 2026
  • Red Hat Security DataOct 24, 2026
  • CVE.orgOct 23, 2026