Incomplete Filtering of Special Elements Affecting virt-firmware-rs package, versions *


Severity

Recommended
0.0
low
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.22% (14th percentile)

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  • Snyk IDSNYK-RHEL10-VIRTFIRMWARERS-22183579
  • published4 Nov 2026
  • disclosed3 Nov 2026

Introduced: 3 Nov 2026

NewCVE-2026-121440  (opens in a new tab)
CWE-791  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:10 virt-firmware-rs.

NVD Description

Note: Versions mentioned in the description apply only to the upstream virt-firmware-rs package and not the virt-firmware-rs package as distributed by RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

Wasmtime 46.0.0 before 48.0.7 and 49.0.0 before 49.0.4 fails to check forwarded trailers against the WasiHttpHooks::is_forbidden_header hook in wasi-http p3. WASIp3 guests can forward a request or response body so its trailers skip embedder-customized forbidden header filtering, undermining header restrictions the embedder intended.

CVSS Base Scores

version 3.1