CVE-2026-74039
- Source
- https://cve.org/CVERecord?id=CVE-2026-74039
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74039.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-74039
- Aliases
-
- GHSA-5vh8-34r8-q74q
- Published
- 2026-08-18T17:26:12Z
- Modified
- 2026-10-28T02:30:53Z
- Severity
-
- 7.1 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- Wazuh 4.0.0 < 4.14.7 API DoS via Deeply Nested JSON auth_context
- Details
-
Wazuh 4.0.0 before 4.14.7 and 5.0.0-beta2 contain a denial of service vulnerability that allows authenticated attackers with allow_run_as enabled to exhaust CPU resources by submitting arbitrarily deeply nested JSON structures to the POST /security/user/authenticate/run_as endpoint. Attackers can repeatedly submit malformed auth_context bodies with unlimited nesting depth to cause the API framework to consume excessive CPU, denying service to all other API consumers.
- Database specific
{ "cna_assigner": "VulnCheck", "cwe_ids": [ "CWE-1333", "CWE-770" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74039.json" }- References
-
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74039.json
- https://github.com/wazuh/wazuh/security/advisories/GHSA-5vh8-34r8-q74q
- https://nvd.nist.gov/vuln/detail/CVE-2026-74039
- https://www.vulncheck.com/advisories/wazuh-api-dos-via-deeply-nested-json-auth-context
- https://github.com/wazuh/wazuh/pull/37034
- https://github.com/wazuh/wazuh
Affected packages
Git / github.com/wazuh/wazuh
Affected ranges
- Type
- GIT
- Repo
- https://github.com/wazuh/wazuh
- Events
-
IntroducedFixedIntroducedLast Affected
- Database specific
-
Show details
{ "extracted_events": [ { "cpe": "cpe:2.3:a:wazuh:wazuh:*:*:*:*:*:*:*:*", "range": [ { "introduced": "4.0.0" }, { "fixed": "4.14.7" } ], "source": "CPE_RANGE" }, { "cpe": "cpe:2.3:a:wazuh:wazuh:5.0.0:beta1:*:*:*:*:*:*", "range": [ { "introduced": "5.0.0-beta1" }, { "last_affected": "5.0.0-beta1" } ], "source": "CPE_STRING" }, { "cpe": "cpe:2.3:a:wazuh:wazuh:5.0.0:beta2:*:*:*:*:*:*", "range": [ { "introduced": "5.0.0-beta2" }, { "last_affected": "5.0.0-beta2" } ], "source": "CPE_STRING" } ] }