175 lines
7.7 KiB
JSON
175 lines
7.7 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-27572",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-02-20T17:40:28.448Z",
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"datePublished": "2026-02-24T21:31:50.186Z",
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"dateUpdated": "2026-02-27T20:55:29.879Z"
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},
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"containers": {
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"cna": {
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"title": "Wasmtime can panic when adding excessive fields to a `wasi:http/types.fields` instance",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-770",
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"lang": "en",
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"description": "CWE-770: Allocation of Resources Without Limits or Throttling",
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"type": "CWE"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV4_0": {
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"attackRequirements": "PRESENT",
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"privilegesRequired": "LOW",
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"userInteraction": "PASSIVE",
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"vulnConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "NONE",
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"vulnAvailabilityImpact": "HIGH",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"subAvailabilityImpact": "HIGH",
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"baseScore": 6.9,
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"baseSeverity": "MEDIUM",
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"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:H",
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"version": "4.0"
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}
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}
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],
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"references": [
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{
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"name": "https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-243v-98vx-264h",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-243v-98vx-264h"
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},
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{
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"name": "https://github.com/bytecodealliance/wasmtime/commit/301dc7162cca51def19131019af1187f45901c0a",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/bytecodealliance/wasmtime/commit/301dc7162cca51def19131019af1187f45901c0a"
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},
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{
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"name": "https://docs.rs/http/1.4.0/http/header/#limitations",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://docs.rs/http/1.4.0/http/header/#limitations"
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},
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{
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"name": "https://github.com/bytecodealliance/wasmtime/releases/tag/v24.0.6",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/bytecodealliance/wasmtime/releases/tag/v24.0.6"
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},
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{
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"name": "https://github.com/bytecodealliance/wasmtime/releases/tag/v36.0.6",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/bytecodealliance/wasmtime/releases/tag/v36.0.6"
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},
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{
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"name": "https://github.com/bytecodealliance/wasmtime/releases/tag/v40.0.4",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/bytecodealliance/wasmtime/releases/tag/v40.0.4"
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},
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{
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"name": "https://github.com/bytecodealliance/wasmtime/releases/tag/v41.0.4",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/bytecodealliance/wasmtime/releases/tag/v41.0.4"
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}
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],
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"affected": [
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{
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"vendor": "bytecodealliance",
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"product": "wasmtime",
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"versions": [
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{
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"version": "< 24.0.6",
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"status": "affected"
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},
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{
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"version": ">= 25.0.0, < 36.0.6",
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"status": "affected"
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},
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{
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"version": ">= 37.0.0, < 40.0.4",
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"status": "affected"
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},
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{
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"version": ">= 41.0.0, < 41.0.4",
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"status": "affected"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-02-24T21:31:50.186Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "Wasmtime is a runtime for WebAssembly. Prior to versions 24.0.6, 36.0.6, 4.0.04, 41.0.4, and 42.0.0, Wasmtime's implementation of the `wasi:http/types.fields` resource is susceptible to panics when too many fields are added to the set of headers. Wasmtime's implementation in the `wasmtime-wasi-http` crate is backed by a data structure which panics when it reaches excessive capacity and this condition was not handled gracefully in Wasmtime. Panicking in a WASI implementation is a Denial of Service vector for embedders and is treated as a security vulnerability in Wasmtime. Wasmtime 24.0.6, 36.0.6, 40.0.4, 41.0.4, and 42.0.0 patch this vulnerability and return a trap to the guest instead of panicking. There are no known workarounds at this time. Embedders are encouraged to update to a patched version of Wasmtime."
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}
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],
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"source": {
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"advisory": "GHSA-243v-98vx-264h",
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"discovery": "UNKNOWN"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-02-27T20:55:20.616278Z",
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"id": "CVE-2026-27572",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-02-27T20:55:29.879Z"
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}
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}
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]
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}
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} |