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Low, CVSS 2.1amended

Guests can send absolute-form HTTP requests to different hosts

CVE-2026-119130GHSA-5qpp-g3j2-8frx

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (wasmtime-wasi-http 49.0.3, 48.0.6, 36.0.18), redeploy, then verify what is actually installed.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

  • crates.io wasmtime-wasi-http

    Affected
    >= 0.0.0-0, < 36.0.18>= 37.0.0, < 48.0.6>= 49.0.0, < 49.0.3
    Fixed in
    48.0.6, 49.0.3, 36.0.18

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS 4.0
2.1 · CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N · score source
EPSS
  • CVE-2026-119130: 0.24% estimated exploitation activity in the next 30 days; percentile 14.74 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-5qpp-g3j2-8frx For more information see the GitHub-hosted security advisory.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 3 · amended ·

    Amended from osv record RUSTSEC-2026-0350

  2. Revision 2 · amended ·

    Reviewed OSV alias/range/CVSS4 correction; package source scopes and original publication preserved. No customer finding resolved.

  3. Revision 1 · created ·

    Published from osv record RUSTSEC-2026-0350

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: CVE-2026-119130

Advisory: Guests can send absolute-form HTTP requests to different hosts
IDs: CVE-2026-119130, GHSA-5qpp-g3j2-8frx
Record: https://patchnext.com/advisories/rustsec-2026-0350 (revision 3, source checked 30 Oct 2026, 07:10 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Low (CVSS 2.1)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: wasmtime-wasi-http 49.0.3, 48.0.6, 36.0.18. A vendor fix does not mean a deployment is fixed.

## Affected components
- crates.io wasmtime-wasi-http: affected >= 0.0.0-0, < 36.0.18; >= 37.0.0, < 48.0.6; >= 49.0.0, < 49.0.3; fixed in 48.0.6, 49.0.3, 36.0.18

## Suggested inspection (read-only)
- crates.io wasmtime-wasi-http: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on wasmtime-wasi-http.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/RUSTSEC-2026-0350 (OSV record RUSTSEC-2026-0350 lists affected ranges: crates.io wasmtime-wasi-http >=0.0.0-0 =37.0.0 =49.0.0 <49.0.3 (fixed))

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