136 lines
6.0 KiB
JSON
136 lines
6.0 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-2026-47244",
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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": "2026-05-18T22:54:18.272Z",
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"datePublished": "2026-06-12T14:23:50.316Z",
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"dateUpdated": "2026-06-12T14:59:15.823Z"
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},
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"containers": {
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"cna": {
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"title": "Netty HTTP/2: Advertised MAX_CONCURRENT_STREAMS are not enforced",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-400",
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"lang": "en",
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"description": "CWE-400: Uncontrolled Resource Consumption",
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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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"cvssV3_1": {
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"attackComplexity": "LOW",
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"attackVector": "NETWORK",
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"availabilityImpact": "LOW",
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"baseScore": 5.3,
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"baseSeverity": "MEDIUM",
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"confidentialityImpact": "NONE",
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"integrityImpact": "NONE",
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"privilegesRequired": "NONE",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
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"version": "3.1"
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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/netty/netty/security/advisories/GHSA-5x3r-wrvg-rp6q",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/netty/netty/security/advisories/GHSA-5x3r-wrvg-rp6q"
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},
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{
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"name": "https://github.com/netty/netty/releases/tag/netty-4.1.135.Final",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/netty/netty/releases/tag/netty-4.1.135.Final"
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},
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{
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"name": "https://github.com/netty/netty/releases/tag/netty-4.2.15.Final",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/netty/netty/releases/tag/netty-4.2.15.Final"
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}
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],
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"affected": [
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{
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"vendor": "netty",
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"product": "netty",
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"versions": [
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{
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"version": ">= 4.2.0.Final, < 4.2.15.Final",
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"status": "affected"
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},
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{
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"version": "< 4.1.135.Final",
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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": "2026-06-12T14:23:50.316Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, DefaultHttp2Connection.DefaultEndpoint initialises maxActiveStreams/maxStreams to Integer.MAX_VALUE, and Http2Settings never inserts SETTINGS_MAX_CONCURRENT_STREAMS by default (Http2Settings.java:305-307 only clamps a user-supplied value). Unless the application explicitly calls initialSettings().maxConcurrentStreams(n), a Netty HTTP/2 server advertises no limit and enforces none locally. Each open stream allocates a DefaultStream object, PropertyMap slots, flow-controller state and IntObjectHashMap entry; with ~2^30 permissible odd stream IDs a single TCP connection can create hundreds of thousands of long-lived stream objects. This is also the precondition for CVE-2023-44487-style Rapid-Reset amplification, where the absence of a low concurrent cap multiplies backend work. Versions 4.1.135.Final and 4.2.15.Final patch the issue."
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}
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],
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"source": {
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"advisory": "GHSA-5x3r-wrvg-rp6q",
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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": "2026-06-12T14:59:00.141106Z",
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"id": "CVE-2026-47244",
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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": "yes"
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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": "2026-06-12T14:59:15.823Z"
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}
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}
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]
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}
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} |