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CVE-2026-44216

A flaw was found in Wasmtime, a runtime for WebAssembly. A remote attacker could exploit an arithmetic overflow vulnerability by instantiating a WebAssembly module or component that attempts to allocate an extremely large table using the WebAssembly memory64 proposal. This flaw causes Wasmtime to panic, resulting in a Denial of Service (DoS) for the affected system.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:d1447ce13cd14029e9886a55f7a693726c4b190c76e9a0ae661017c909e88fcf
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
3

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 3 assertions

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10"],"defaultStatus":"unaffected","packageName":"virt-firmware-rs","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2f41d57479ac2c922839b619969af49878afac2f0461590aff3478a2d1217b9d · sha256:6c4cfb316dd4ae03… · /containers/adp/1/affected/1

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:hummingbird:1"],"defaultStatus":"affected","packageName":"rust-main","product":"Red Hat Hardened Images","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1.97.1-2.hum1","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2f41d57479ac2c922839b619969af49878afac2f0461590aff3478a2d1217b9d · sha256:6c4cfb316dd4ae03… · /containers/adp/1/affected/0

{"product":"wasmtime","vendor":"bytecodealliance","versions":[{"status":"affected","version":">= 30.0.0, < 36.0.8"},{"status":"affected","version":">= 37.0.0, < 43.0.2"},{"status":"affected","version":"44.0.0"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2f41d57479ac2c922839b619969af49878afac2f0461590aff3478a2d1217b9d · sha256:6c4cfb316dd4ae03… · /containers/cna/affected/0
cvss · 2 assertions

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:2f41d57479ac2c922839b619969af49878afac2f0461590aff3478a2d1217b9d · sha256:6c4cfb316dd4ae03… · /containers/adp/1/metrics/1/cvssV3_1

{"metric":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":5.9,"baseSeverity":"MEDIUM","privilegesRequired":"LOW","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"PASSIVE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:2f41d57479ac2c922839b619969af49878afac2f0461590aff3478a2d1217b9d · sha256:6c4cfb316dd4ae03… · /containers/cna/metrics/0/cvssV4_0
cwe · 2 assertions

{"cweId":"CWE-770","description":"CWE-770: Allocation of Resources Without Limits or Throttling","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:2f41d57479ac2c922839b619969af49878afac2f0461590aff3478a2d1217b9d · sha256:6c4cfb316dd4ae03… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-190","description":"Integer Overflow or Wraparound","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:2f41d57479ac2c922839b619969af49878afac2f0461590aff3478a2d1217b9d · sha256:6c4cfb316dd4ae03… · /containers/adp/1/problemTypes/0/descriptions/0

Affected products and versions

3 source assertions
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10"],"defaultStatus":"unaffected","packageName":"virt-firmware-rs","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2f41d57479ac2c922839b619969af49878afac2f0461590aff3478a2d1217b9d · sha256:6c4cfb316dd4ae03… · /containers/adp/1/affected/1
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:hummingbird:1"],"defaultStatus":"affected","packageName":"rust-main","product":"Red Hat Hardened Images","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"1.97.1-2.hum1","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2f41d57479ac2c922839b619969af49878afac2f0461590aff3478a2d1217b9d · sha256:6c4cfb316dd4ae03… · /containers/adp/1/affected/0
{"product":"wasmtime","vendor":"bytecodealliance","versions":[{"status":"affected","version":">= 30.0.0, < 36.0.8"},{"status":"affected","version":">= 37.0.0, < 43.0.2"},{"status":"affected","version":"44.0.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2f41d57479ac2c922839b619969af49878afac2f0461590aff3478a2d1217b9d · sha256:6c4cfb316dd4ae03… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:2f41d57479ac2c922839b619969af49878afac2f0461590aff3478a2d1217b9d · sha256:6c4cfb316dd4ae03… · /containers/adp/1/metrics/1/cvssV3_1
{"metric":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":5.9,"baseSeverity":"MEDIUM","privilegesRequired":"LOW","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"PASSIVE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:2f41d57479ac2c922839b619969af49878afac2f0461590aff3478a2d1217b9d · sha256:6c4cfb316dd4ae03… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-770","description":"CWE-770: Allocation of Resources Without Limits or Throttling","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:2f41d57479ac2c922839b619969af49878afac2f0461590aff3478a2d1217b9d · sha256:6c4cfb316dd4ae03… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-190","description":"Integer Overflow or Wraparound","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:2f41d57479ac2c922839b619969af49878afac2f0461590aff3478a2d1217b9d · sha256:6c4cfb316dd4ae03… · /containers/adp/1/problemTypes/0/descriptions/0

Source references

5 source assertions
{"tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:45341"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2f41d57479ac2c922839b619969af49878afac2f0461590aff3478a2d1217b9d · sha256:6c4cfb316dd4ae03… · /containers/adp/1/references/3
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-44216"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2f41d57479ac2c922839b619969af49878afac2f0461590aff3478a2d1217b9d · sha256:6c4cfb316dd4ae03… · /containers/adp/1/references/0
{"name":"RHBZ#2477467","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2477467"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2f41d57479ac2c922839b619969af49878afac2f0461590aff3478a2d1217b9d · sha256:6c4cfb316dd4ae03… · /containers/adp/1/references/1
{"name":"https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-p8xm-42r7-89xg","tags":["x_refsource_CONFIRM"],"url":"https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-p8xm-42r7-89xg"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2f41d57479ac2c922839b619969af49878afac2f0461590aff3478a2d1217b9d · sha256:6c4cfb316dd4ae03… · /containers/cna/references/0
{"tags":["x_sadp-csaf-vex"],"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44216.json"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2f41d57479ac2c922839b619969af49878afac2f0461590aff3478a2d1217b9d · sha256:6c4cfb316dd4ae03… · /containers/adp/1/references/2

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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