CVE-2026-26940
- Source
- https://cve.org/CVERecord?id=CVE-2026-26940
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-26940.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-26940
- Downstream
- Published
- 2026-03-19T17:14:31.734Z
- Modified
- 2026-07-15T19:14:45.871586Z
- 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 Validation of Specified Quantity in Input in Kibana Leading to Denial of Service
- Details
-
Improper Validation of Specified Quantity in Input (CWE-1284) in the Timelion visualization plugin in Kibana can lead Denial of Service via Excessive Allocation (CAPEC-130). The vulnerability allows an authenticated user to send a specially crafted Timelion expression that overwrites internal series data properties with an excessively large quantity value.
- Database specific
{ "cna_assigner": "elastic", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/26xxx/CVE-2026-26940.json", "unresolved_ranges": [ { "extracted_events": [ { "introduced": "9.3.0" }, { "last_affected": "9.3.1" }, { "introduced": "9.0.0" }, { "last_affected": "9.2.6" }, { "introduced": "8.0.0" }, { "last_affected": "8.19.12" } ], "source": "AFFECTED_FIELD" } ], "cwe_ids": [ "CWE-1284" ] }- References
Affected packages
Git / github.com/elastic/elasticsearch
Affected ranges
- Type
- GIT
- Repo
- https://github.com/elastic/elasticsearch
- Events
- Database specific
{ "cpe": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*", "extracted_events": [ { "introduced": "8.0.0" }, { "fixed": "8.19.13" }, { "introduced": "9.0.0" }, { "fixed": "9.2.7" }, { "introduced": "9.3.0" }, { "fixed": "9.3.2" } ], "source": "CPE_RANGE" }
Database specific
vanir_signatures_modified
"2026-07-15T19:14:45Z"
vanir_signatures
[
{
"target": {
"file": "server/src/test/java/org/elasticsearch/index/query/PrefixQueryBuilderTests.java"
},
"id": "CVE-2026-26940-2e203cf7",
"digest": {
"line_hashes": [
"47078404655310713527206886804508652819",
"9736821135205453259684021960045915104",
"321479224129948038347422783508630426551",
"336929828005760250217549392973710757538",
"87981632530719927991976872050798427068",
"241140473887075321789748749310666516124",
"296709739770584752465477459733490979822"
],
"threshold": 0.9
},
"deprecated": false,
"signature_version": "v1",
"signature_type": "Line",
"source": "https://github.com/elastic/elasticsearch/commit/39e49969374b9cb20b84dc00f7d505d67480deeb"
},
{
"target": {
"file": "server/src/test/java/org/elasticsearch/index/query/PrefixQueryBuilderTests.java"
},
"id": "CVE-2026-26940-6bc40983",
"digest": {
"line_hashes": [
"47078404655310713527206886804508652819",
"9736821135205453259684021960045915104",
"321479224129948038347422783508630426551",
"336929828005760250217549392973710757538",
"87981632530719927991976872050798427068",
"241140473887075321789748749310666516124",
"296709739770584752465477459733490979822"
],
"threshold": 0.9
},
"deprecated": false,
"signature_version": "v1",
"signature_type": "Line",
"source": "https://github.com/elastic/elasticsearch/commit/43a703737aab6baefa748bc7b69e4054926f2b2c"
},
{
"target": {
"function": "testPrefixCircuitBreakerTripsWithLowLimit",
"file": "server/src/test/java/org/elasticsearch/index/query/PrefixQueryBuilderTests.java"
},
"id": "CVE-2026-26940-95865c28",
"digest": {
"function_hash": "107649075361093097895479135995297736263",
"length": 292.0
},
"deprecated": false,
"signature_version": "v1",
"signature_type": "Function",
"source": "https://github.com/elastic/elasticsearch/commit/39e49969374b9cb20b84dc00f7d505d67480deeb"
},
{
"target": {
"function": "testPrefixCircuitBreakerTripsWithLowLimit",
"file": "server/src/test/java/org/elasticsearch/index/query/PrefixQueryBuilderTests.java"
},
"id": "CVE-2026-26940-e8da0d97",
"digest": {
"function_hash": "107649075361093097895479135995297736263",
"length": 292.0
},
"deprecated": false,
"signature_version": "v1",
"signature_type": "Function",
"source": "https://github.com/elastic/elasticsearch/commit/43a703737aab6baefa748bc7b69e4054926f2b2c"
}
]
source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-26940.json"
Git / github.com/elastic/kibana
Affected ranges
- Type
- GIT
- Repo
- https://github.com/elastic/kibana
- Events
- Database specific
{ "cpe": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*", "extracted_events": [ { "introduced": "8.0.0" }, { "fixed": "8.19.13" }, { "introduced": "9.0.0" }, { "fixed": "9.2.7" }, { "introduced": "9.3.0" }, { "fixed": "9.3.2" } ], "source": "CPE_RANGE" }