CVE-2026-0543
- Source
- https://cve.org/CVERecord?id=CVE-2026-0543
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-0543.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-0543
- Aliases
- Downstream
- Published
- 2026-01-13T21:10:38Z
- Modified
- 2026-10-24T10:51:07Z
- Severity
-
- 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- Improper Input Validation in Kibana Email Connector Leading to Excessive Allocation
- Details
-
Improper Input Validation (CWE-20) in Kibana's Email Connector can allow an attacker to cause an Excessive Allocation (CAPEC-130) through a specially crafted email address parameter. This requires an attacker to have authenticated access with view-level privileges sufficient to execute connector actions. The application attempts to process specially crafted email format, resulting in complete service unavailability for all users until manual restart is performed.
- Database specific
{ "cna_assigner": "elastic", "cwe_ids": [ "CWE-20" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/0xxx/CVE-2026-0543.json", "unresolved_ranges": [ { "extracted_events": [ { "range": [ { "introduced": "8.0.0" }, { "last_affected": "8.19.9" }, { "introduced": "7.0.0" }, { "last_affected": "7.17.29" }, { "introduced": "9.0.0" }, { "last_affected": "9.1.9" }, { "introduced": "9.2.0" }, { "last_affected": "9.2.3" } ], "source": "AFFECTED_FIELD", "strategy": "StandardRange" } ] } ] }- References
Affected packages
Git / github.com/elastic/elasticsearch
Affected ranges
- Type
- GIT
- Repo
- https://github.com/elastic/elasticsearch
- Events
-
IntroducedLast AffectedIntroducedFixedIntroducedFixedIntroducedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "cpe": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*", "range": [ { "introduced": "7.0.0" }, { "last_affected": "7.17.29" } ], "source": "CPE_RANGE" }, { "cpe": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*", "range": [ { "introduced": "8.0.0" }, { "fixed": "8.19.0" } ], "source": "CPE_RANGE" }, { "cpe": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*", "range": [ { "introduced": "9.0.0" }, { "fixed": "9.1.10" } ], "source": "CPE_RANGE" }, { "cpe": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*", "range": [ { "introduced": "9.2.0" }, { "fixed": "9.2.4" } ], "source": "CPE_RANGE" } ] }
Git / github.com/elastic/kibana
Affected ranges
- Type
- GIT
- Repo
- https://github.com/elastic/kibana
- Events
-
IntroducedLast AffectedIntroducedFixedIntroducedFixedIntroducedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "cpe": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*", "range": [ { "introduced": "7.0.0" }, { "last_affected": "7.17.29" } ], "source": "CPE_RANGE" }, { "cpe": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*", "range": [ { "introduced": "8.0.0" }, { "fixed": "8.19.0" } ], "source": "CPE_RANGE" }, { "cpe": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*", "range": [ { "introduced": "9.0.0" }, { "fixed": "9.1.10" } ], "source": "CPE_RANGE" }, { "cpe": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*", "range": [ { "introduced": "9.2.0" }, { "fixed": "9.2.4" } ], "source": "CPE_RANGE" } ] }