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Vulnerabilities

Vulnerability · RUSTSEC-2026-0357

Out-of-bounds zero-length stream writes can panic

Published Oct 14, 2026 · catalog updated Oct 14, 2026 · RustSec Rust

Open the advisory

Exploitation likelihood is not on this record for RUSTSEC-2026-0357. A missing EPSS score is not a low risk. Compare RustSec Rust with the linked advisory before you change production.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
  • EPSS is missing. A missing score is not a low risk.
Severity
Unknown—
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
Awaiting synchronization with FIRST
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-93g3-36p8-x2gc 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 wasmtime46.0.0 → 48.0.6

How to fix RUSTSEC-2026-0357

What to do

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

Should you patch?

Exploitation likelihood is not on this record for RUSTSEC-2026-0357. A missing EPSS score is not a low risk. Compare RustSec Rust with the linked advisory before you change production.

Which versions are affected?

Compare what you have installed with 46.0.0 → 48.0.6. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS is not on this record yet. 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 14, 2026 · GitHub Advisory Database

    Detected

    This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-93g3-36p8-x2gc For more information see the GitHub-hosted security advisory.

  2. Oct 14, 2026 · GitHub Advisory Database

    Fix available

    wasmtime fixed in 48.0.6

  3. Oct 14, 2026 · GitHub Advisory Database

    Fix available

    wasmtime fixed in 48.0.6

  4. Oct 14, 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-93g3-36p8-x2gc For more information see the GitHub-hosted security advisory.

Sources

  • GitHub Advisory DatabasePackage advisoryGHSA-93g3-36p8-x2gc

    GitHub Advisory Database record mirrored by OSV.

    github.com
  • OpenSSF OSV / OSV ScannerPackage advisoryRUSTSEC-2026-0357

    Out-of-bounds zero-length stream writes can panic

    osv.dev
  • RustSec Advisory DBVendor advisoryRUSTSEC-2026-0357

    This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-93g3-36p8-x2gc For more information see the GitHub-hosted security advisory.

    crates.io

References

Freshness

Last verified in this catalog Oct 14, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.