136 lines
5.5 KiB
JSON
136 lines
5.5 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-2026-54522",
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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": "2026-06-15T18:40:01.651Z",
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"datePublished": "2026-07-30T16:33:06.080Z",
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"dateUpdated": "2026-07-30T17:39:15.020Z"
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},
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"containers": {
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"cna": {
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"title": "MessagePack::Buffer#clear Use-After-Free that Enables Cross-Buffer Disclosure",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-416",
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"lang": "en",
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"description": "CWE-416: Use After Free",
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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": "LOCAL",
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"attackComplexity": "LOW",
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"attackRequirements": "PRESENT",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"vulnConfidentialityImpact": "LOW",
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"vulnIntegrityImpact": "NONE",
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"vulnAvailabilityImpact": "NONE",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"subAvailabilityImpact": "NONE",
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"baseScore": 2.1,
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"baseSeverity": "LOW",
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"vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
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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/msgpack/msgpack-ruby/security/advisories/GHSA-4mrv-5p47-p938",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/msgpack/msgpack-ruby/security/advisories/GHSA-4mrv-5p47-p938"
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},
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{
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"name": "https://github.com/msgpack/msgpack-ruby/commit/5627d71606b565641d2dd501b82aae862f4abe90",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/msgpack/msgpack-ruby/commit/5627d71606b565641d2dd501b82aae862f4abe90"
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}
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],
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"affected": [
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{
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"vendor": "msgpack",
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"product": "msgpack-ruby",
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"versions": [
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{
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"version": "< 1.8.2",
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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": "2026-07-30T16:33:06.080Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "MessagePack for Ruby is an implementation of the MessagePack binary serialization format. Prior to 1.8.2, MessagePack::Buffer#clear in ext/msgpack/buffer.c leaves rmem_last, rmem_end, and rmem_owner stale after _msgpack_buffer_shift_chunk returns an rmem page to the shared pool, allowing a subsequent Buffer#write and a second MessagePack::Buffer to alias the page and disclose or corrupt cross-buffer data. This issue is fixed in version 1.8.2."
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}
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],
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"source": {
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"advisory": "GHSA-4mrv-5p47-p938",
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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/msgpack/msgpack-ruby/security/advisories/GHSA-4mrv-5p47-p938",
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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": "2026-07-30T17:38:58.315032Z",
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"id": "CVE-2026-54522",
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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": "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": "2026-07-30T17:39:15.020Z"
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}
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}
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]
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}
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} |