185 lines
7.8 KiB
JSON
185 lines
7.8 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-2026-84375",
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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": "2026-09-01T16:27:58.129Z",
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"datePublished": "2026-09-01T21:43:13.617Z",
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"dateUpdated": "2026-09-28T21:32:39.387Z"
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},
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"containers": {
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"cna": {
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"title": "js-yaml: maxTotalMergeKeys does not limit CPU use for empty merge sources",
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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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"descriptions": [
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{
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"cweId": "CWE-407",
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"lang": "en",
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"description": "CWE-407: Inefficient Algorithmic Complexity",
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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": "HIGH",
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"baseScore": 7.5,
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"baseSeverity": "HIGH",
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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:H",
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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/nodeca/js-yaml/security/advisories/GHSA-2883-xcg3-v3hh",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/nodeca/js-yaml/security/advisories/GHSA-2883-xcg3-v3hh"
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},
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{
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"name": "https://github.com/nodeca/js-yaml/pull/797",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/nodeca/js-yaml/pull/797"
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},
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{
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"name": "https://github.com/nodeca/js-yaml/commit/3485bc06ff8a0251505f44a00414d90df2466639",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/nodeca/js-yaml/commit/3485bc06ff8a0251505f44a00414d90df2466639"
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},
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{
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"name": "https://github.com/nodeca/js-yaml/commit/6a8e05f9a485188ed730ac81e81ae221352ef480",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/nodeca/js-yaml/commit/6a8e05f9a485188ed730ac81e81ae221352ef480"
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},
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{
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"name": "https://github.com/nodeca/js-yaml/commit/d90b6612a5a84385bdcb556c44578eac76dc0f6b",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/nodeca/js-yaml/commit/d90b6612a5a84385bdcb556c44578eac76dc0f6b"
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},
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{
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"name": "https://github.com/nodeca/js-yaml/releases/tag/3.15.2",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/nodeca/js-yaml/releases/tag/3.15.2"
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},
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{
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"name": "https://github.com/nodeca/js-yaml/releases/tag/4.3.2",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/nodeca/js-yaml/releases/tag/4.3.2"
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},
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{
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"name": "https://github.com/nodeca/js-yaml/releases/tag/5.4.1",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/nodeca/js-yaml/releases/tag/5.4.1"
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}
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],
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"affected": [
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{
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"vendor": "nodeca",
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"product": "js-yaml",
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"versions": [
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{
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"version": ">= 3.0.0, < 3.15.2",
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"status": "affected"
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},
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{
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"version": ">= 4.0.0, < 4.3.2",
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"status": "affected"
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},
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{
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"version": ">= 5.0.0, < 5.4.1",
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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": "2026-09-28T21:32:39.387Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "js-yaml is a JavaScript YAML parser and dumper. From 3.0.0 until 3.15.2, 4.3.2, and 5.4.1, maxTotalMergeKeys in lib/js-yaml/loader.js and lib/loader.js does not count empty mapping sources while processing the merge key <<. An attacker can alias a large sequence of empty mappings into many merge targets, causing O(N * K) processing while totalMergeKeys remains unchanged and the configured resource limit is never reached. A relatively small YAML document can therefore cause prolonged CPU consumption in applications that parse untrusted YAML, and merge processing is enabled by default on these release lines. In v3 & v4, merge is enabled by default so the severity score is higher. This issue is fixed in versions 3.15.2, 4.3.2, and 5.4.1."
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}
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],
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"source": {
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"advisory": "GHSA-2883-xcg3-v3hh",
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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": "2026-09-02T13:43:50.850378Z",
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"id": "CVE-2026-84375",
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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": "2026-09-02T16:02:06.745Z"
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}
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}
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]
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}
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} |