161 lines
6.8 KiB
JSON
161 lines
6.8 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-2026-44253",
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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": "2026-05-05T16:33:55.844Z",
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"datePublished": "2026-08-19T16:06:06.158Z",
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"dateUpdated": "2026-08-25T02:13:49.793Z"
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},
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"containers": {
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"cna": {
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"title": "Wazuh: Cluster Protocol Memory Exhaustion (DoS) via unbounded receive_str allocation and div_msg_box accumulation",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-789",
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"lang": "en",
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"description": "CWE-789: Memory Allocation with Excessive Size Value",
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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-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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"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": 4.9,
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"baseSeverity": "MEDIUM",
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"confidentialityImpact": "NONE",
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"integrityImpact": "NONE",
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"privilegesRequired": "HIGH",
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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:H/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/wazuh/wazuh/security/advisories/GHSA-h5r8-gvhv-cmp2",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/wazuh/wazuh/security/advisories/GHSA-h5r8-gvhv-cmp2"
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},
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{
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"name": "https://github.com/wazuh/wazuh/pull/35173",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/wazuh/wazuh/pull/35173"
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},
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{
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"name": "https://github.com/wazuh/wazuh/commit/d29c5c89a0e16477545ca27f4e06229021e3183c",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/wazuh/wazuh/commit/d29c5c89a0e16477545ca27f4e06229021e3183c"
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},
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{
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"name": "https://github.com/wazuh/wazuh/releases/tag/v4.14.5",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/wazuh/wazuh/releases/tag/v4.14.5"
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}
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],
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"affected": [
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{
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"vendor": "wazuh",
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"product": "wazuh",
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"versions": [
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{
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"version": ">= 3.9.0, < 4.14.5",
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"status": "affected"
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},
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{
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"version": ">= 5.0.0-beta1, < 5.0.0-beta2",
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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": "2026-08-19T16:06:06.158Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "Wazuh is a free and open source platform used for threat prevention, detection, and response. From 3.9.0 until 4.14.5 and 5.0.0-beta2, the Wazuh cluster protocol in framework/wazuh/core/cluster/common.py allows an authenticated cluster node to exhaust memory on the master. The receive_str() method accepts an attacker-controlled total for InBuffer without a maximum, so a new_str command can request a multi-gigabyte bytearray and repeated requests accumulate in in_str. The divided-message path also retains flag_divided fragments under unique counters in div_msg_box without a count, aggregate-size, or expiration limit. Exploitation can disrupt agent connectivity and alert processing across the monitored environment. This issue is fixed in versions 4.14.5 and 5.0.0-beta2."
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}
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],
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"source": {
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"advisory": "GHSA-h5r8-gvhv-cmp2",
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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/wazuh/wazuh/security/advisories/GHSA-h5r8-gvhv-cmp2",
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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": "2026-08-25T02:13:22.111115Z",
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"id": "CVE-2026-44253",
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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": "2026-08-25T02:13:49.793Z"
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}
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}
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]
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}
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} |