CVE catalog

CVE-2022-31146

UBUNTU-

[CVE catalog]

Wasmtime is a standalone runtime for WebAssembly. There is a bug in the Wasmtime's code generator, Cranelift, where functions using reference types may be incorrectly missing metadata required for runtime garbage collection. This means that if a GC happens at runtime then the GC pass will mistakenly think these functions do not have live references to GC'd values, reclaiming them and deallocating them. The function will then subsequently continue to use the values assuming they had not been GC'd, leading later to a use-after-free. This bug was introduced in the migration to the `regalloc2` register allocator that occurred in the Wasmtime 0.37.0 release on 2022-05-20. This bug has been patched and users should upgrade to Wasmtime version 0.38.2. Mitigations for this issue can be achieved by disabling the reference types proposal by passing `false` to `wasmtime::Config::wasm_reference_types` or downgrading to Wasmtime 0.36.0 or prior.

Severity
Unknown
Published
Updated
Source
[NVD] · [CVE record]
EPSS
1.25% · Oct 27, 2026

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Distribution / releasePackageVersionStatusSource
Ubuntu24.04thunderbird1:115.3.1+build1-0ubuntu1Affected[UBUNTU-CVE-2022-31146]
Ubuntu24.04thunderbird1:115.4.1+build1-0ubuntu1Affected[UBUNTU-CVE-2022-31146]
Ubuntu24.04thunderbird1:115.4.3+build1-0ubuntu1Affected[UBUNTU-CVE-2022-31146]
Ubuntu24.04thunderbird1:115.5.0+build1-0ubuntu1Affected[UBUNTU-CVE-2022-31146]
Ubuntu24.04thunderbird1:115.5.1+build1-0ubuntu1Affected[UBUNTU-CVE-2022-31146]
Ubuntu24.04thunderbird1:115.5.2+build2-0ubuntu1Affected[UBUNTU-CVE-2022-31146]
Ubuntu24.04thunderbird1:115.6.0+build1-0ubuntu1Affected[UBUNTU-CVE-2022-31146]
Ubuntu24.04thunderbird1:115.6.0+build2-0ubuntu1Affected[UBUNTU-CVE-2022-31146]
Ubuntu24.04thunderbird1:115.6.1+build1-0ubuntu1Affected[UBUNTU-CVE-2022-31146]
Ubuntu24.04thunderbird1:115.8.0+build1-0ubuntu1Affected[UBUNTU-CVE-2022-31146]
Ubuntu24.04thunderbird1:115.8.1+build1+snap2Affected[UBUNTU-CVE-2022-31146]
Ubuntu24.04thunderbird1:115.8.1+build1+snap3Affected[UBUNTU-CVE-2022-31146]

Showing 12 observations. All 74 observations, including unknown and conflicting reports, are available below.

Provider details and historical evidence
Distribution / releasePackageVersionStatusSource
Ubuntu18.04mozjs3838.8.0~repack1-0ubuntu1Affected[UBUNTU-CVE-2022-31146]
Ubuntu18.04mozjs3838.8.0~repack1-0ubuntu3Affected[UBUNTU-CVE-2022-31146]
Ubuntu18.04mozjs3838.8.0~repack1-0ubuntu4Affected[UBUNTU-CVE-2022-31146]
Ubuntu18.04mozjs5252.3.1-0ubuntu3Affected[UBUNTU-CVE-2022-31146]
Ubuntu18.04mozjs5252.3.1-7fakesync1Affected[UBUNTU-CVE-2022-31146]
Ubuntu18.04mozjs5252.8.1-0ubuntu0.18.04.1Affected[UBUNTU-CVE-2022-31146]
Ubuntu18.04mozjs5252.9.1-0ubuntu0.18.04.1Affected[UBUNTU-CVE-2022-31146]
Ubuntu20.04mozjs5252.9.1-1build1Affected[UBUNTU-CVE-2022-31146]
Ubuntu20.04mozjs5252.9.1-1ubuntu3Affected[UBUNTU-CVE-2022-31146]
Ubuntu20.04mozjs6868.5.0-1~fakesyncAffected[UBUNTU-CVE-2022-31146]
Ubuntu20.04mozjs6868.5.0-2~fakesyncAffected[UBUNTU-CVE-2022-31146]
Ubuntu20.04mozjs6868.6.0-1Affected[UBUNTU-CVE-2022-31146]
Ubuntu20.04mozjs6868.6.0-1ubuntu1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04mozjs7878.13.0-1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04mozjs7878.15.0-2Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04mozjs7878.15.0-4ubuntu1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04mozjs9191.10.0-0ubuntu1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04mozjs9191.5.1-0ubuntu1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04mozjs9191.6.0-1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04mozjs9191.6.0-2Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04mozjs9191.7.0-2Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04thunderbird1:102.10.0+build2-0ubuntu0.22.04.1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04thunderbird1:102.11.0+build1-0ubuntu0.22.04.1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04thunderbird1:102.13.0+build1-0ubuntu0.22.04.1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04thunderbird1:102.15.0+build1-0ubuntu0.22.04.1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04thunderbird1:102.15.1+build1-0ubuntu0.22.04.1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04thunderbird1:102.2.2+build1-0ubuntu0.22.04.1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04thunderbird1:102.4.2+build2-0ubuntu0.22.04.1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04thunderbird1:102.7.1+build2-0ubuntu0.22.04.1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04thunderbird1:102.8.0+build2-0ubuntu0.22.04.1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04thunderbird1:102.9.0+build1-0ubuntu0.22.04.1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04thunderbird1:115.10.1+build1-0ubuntu0.22.04.1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04thunderbird1:115.11.0+build2-0ubuntu0.22.04.1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04thunderbird1:115.12.0+build3-0ubuntu0.22.04.1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04thunderbird1:115.13.0+build5-0ubuntu0.22.04.1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04thunderbird1:115.15.0+build1-0ubuntu0.22.04.1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04thunderbird1:115.16.0+build2-0ubuntu0.22.04.1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04thunderbird1:115.18.0+build1-0ubuntu0.22.04.1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04thunderbird1:115.3.1+build1-0ubuntu0.22.04.2Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04thunderbird1:115.4.1+build1-0ubuntu0.22.04.1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04thunderbird1:115.5.0+build1-0ubuntu0.22.04.1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04thunderbird1:115.6.0+build2-0ubuntu0.22.04.1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04thunderbird1:115.8.1+build1-0ubuntu0.22.04.1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04thunderbird1:115.9.0+build1-0ubuntu0.22.04.1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04thunderbird1:128.12.0+build1-0ubuntu0.22.04.1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04thunderbird1:140.7.1+build1-0ubuntu0.22.04.1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04thunderbird1:91.1.2+build1-0ubuntu1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04thunderbird1:91.11.0+build2-0ubuntu0.22.04.1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04thunderbird1:91.3.0+build2-0ubuntu1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04thunderbird1:91.3.1+build1-0ubuntu1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04thunderbird1:91.3.2+build1-0ubuntu1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04thunderbird1:91.4.0+build1.1-0ubuntu1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04thunderbird1:91.4.0+build2-0ubuntu1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04thunderbird1:91.5.0+build1-0ubuntu1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04thunderbird1:91.5.1+build1-0ubuntu1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04thunderbird1:91.6.1+build1-0ubuntu1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04thunderbird1:91.7.0+build1-0ubuntu1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04thunderbird1:91.7.0+build2-0ubuntu1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04thunderbird1:91.8.0+build2-0ubuntu1Affected[UBUNTU-CVE-2022-31146]
Ubuntu22.04thunderbird1:91.9.1+build1-0ubuntu0.22.04.1Affected[UBUNTU-CVE-2022-31146]
Ubuntu24.04thunderbird1:115.3.1+build1-0ubuntu1Affected[UBUNTU-CVE-2022-31146]
Ubuntu24.04thunderbird1:115.4.1+build1-0ubuntu1Affected[UBUNTU-CVE-2022-31146]
Ubuntu24.04thunderbird1:115.4.3+build1-0ubuntu1Affected[UBUNTU-CVE-2022-31146]
Ubuntu24.04thunderbird1:115.5.0+build1-0ubuntu1Affected[UBUNTU-CVE-2022-31146]
Ubuntu24.04thunderbird1:115.5.1+build1-0ubuntu1Affected[UBUNTU-CVE-2022-31146]
Ubuntu24.04thunderbird1:115.5.2+build2-0ubuntu1Affected[UBUNTU-CVE-2022-31146]
Ubuntu24.04thunderbird1:115.6.0+build1-0ubuntu1Affected[UBUNTU-CVE-2022-31146]
Ubuntu24.04thunderbird1:115.6.0+build2-0ubuntu1Affected[UBUNTU-CVE-2022-31146]
Ubuntu24.04thunderbird1:115.6.1+build1-0ubuntu1Affected[UBUNTU-CVE-2022-31146]
Ubuntu24.04thunderbird1:115.8.0+build1-0ubuntu1Affected[UBUNTU-CVE-2022-31146]
Ubuntu24.04thunderbird1:115.8.1+build1+snap2Affected[UBUNTU-CVE-2022-31146]
Ubuntu24.04thunderbird1:115.8.1+build1+snap3Affected[UBUNTU-CVE-2022-31146]
Ubuntu24.04thunderbird2:1snap1-0ubuntu1Affected[UBUNTU-CVE-2022-31146]
Ubuntu24.04thunderbird2:1snap1-0ubuntu3Affected[UBUNTU-CVE-2022-31146]
Original provider fields
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  "fixed_versions": [],
  "distribution_packages": [
    {
      "name": "mozjs52",
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        "52.9.1-0ubuntu0.18.04.1"
      ],
      "ecosystem": "deb",
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      "fixed_version": "",
      "provider_source": "pypi",
      "provider_record_id": "UBUNTU-CVE-2022-31146",
      "provider_updated_at": "2026-04-22T13:24:35.632733Z"
    },
    {
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    },
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      "release": "20.04",
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      "provider_updated_at": "2026-04-22T13:24:35.632733Z"
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    {
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      "provider_record_id": "UBUNTU-CVE-2022-31146",
      "provider_updated_at": "2026-04-22T13:24:35.632733Z"
    },
    {
      "name": "mozjs78",
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      ],
      "release": "22.04",
      "versions": [
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        "78.15.0-4ubuntu1"
      ],
      "ecosystem": "deb",
      "provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2022-31146",
      "fixed_version": "",
      "provider_source": "pypi",
      "provider_record_id": "UBUNTU-CVE-2022-31146",
      "provider_updated_at": "2026-04-22T13:24:35.632733Z"
    },
    {
      "name": "mozjs91",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
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      ],
      "release": "22.04",
      "versions": [
        "91.5.1-0ubuntu1",
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      "provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2022-31146",
      "fixed_version": "",
      "provider_source": "pypi",
      "provider_record_id": "UBUNTU-CVE-2022-31146",
      "provider_updated_at": "2026-04-22T13:24:35.632733Z"
    },
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        "1:91.7.0+build1-0ubuntu1",
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        "1:91.8.0+build2-0ubuntu1",
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        "2:1snap1-0ubuntu1",
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      "provider_updated_at": "2026-04-22T13:24:35.632733Z"
    }
  ]
}

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

Observed:

References

[FIRST EPSS] · [OSV Package Vulnerability Database]