160 lines
7.0 KiB
JSON
160 lines
7.0 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-2026-49293",
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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": "2026-05-28T20:07:58.862Z",
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"datePublished": "2026-06-19T18:14:20.150Z",
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"dateUpdated": "2026-11-04T03:42:15.699Z"
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},
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"containers": {
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"cna": {
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"title": "CPU exhaustion via O(n^2) BigInt construction on radix-prefixed integer literals",
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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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"descriptions": [
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{
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"cweId": "CWE-1333",
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"lang": "en",
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"description": "CWE-1333: Inefficient Regular Expression 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/sunnyadn/js-toml/security/advisories/GHSA-wp3c-266w-4qfq",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/sunnyadn/js-toml/security/advisories/GHSA-wp3c-266w-4qfq"
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},
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{
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"name": "https://github.com/sunnyadn/js-toml/commit/1e45ca56ba12e98508f8aae3e31c4aff7603d711",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/sunnyadn/js-toml/commit/1e45ca56ba12e98508f8aae3e31c4aff7603d711"
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},
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{
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"name": "https://github.com/sunnyadn/js-toml/releases/tag/v1.1.2",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/sunnyadn/js-toml/releases/tag/v1.1.2"
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}
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],
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"affected": [
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{
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"vendor": "sunnyadn",
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"product": "js-toml",
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"versions": [
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{
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"version": "< 1.1.2",
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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": "2026-11-04T03:42:15.699Z"
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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-toml is a TOML parser for JavaScript, fully compliant with the TOML 1.0.0 Spec. Versions up to and including 1.1.1 parse hexadecimal / octal / binary integer literals via a hand-written `parseBigInt` loop that multiplies a `BigInt` accumulator by the radix once per input digit. Each iteration performs a `BigInt * BigInt` operation on an accumulator that grows linearly with the number of digits already consumed, so the whole loop is O(n²) in the literal length. The lexer regex places no upper bound on the literal length, so a single TOML document containing one ~500 kB hex literal pins one CPU core for ~40 seconds on a modern laptop (Apple M-series, Node v22). Memory amplification is bounded but CPU amplification is severe and grows quadratically: doubling the literal length quadruples the work. A caller that invokes `load()` on attacker-controlled TOML (configuration upload endpoints, CI/CD systems ingesting third-party `*.toml`, IDE plugins, build tools) is exposed to a single-request CPU exhaustion DoS. Version 1.1.2 fixes the issue."
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}
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],
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"source": {
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"advisory": "GHSA-wp3c-266w-4qfq",
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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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"references": [
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{
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"url": "https://github.com/sunnyadn/js-toml/security/advisories/GHSA-wp3c-266w-4qfq",
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"tags": [
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"exploit"
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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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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-06-22T14:09:42.727540Z",
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"id": "CVE-2026-49293",
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"options": [
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{
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"Exploitation": "poc"
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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": "2026-06-22T14:10:09.458Z"
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}
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}
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]
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}
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} |