CVE Explorer
CVE-2026-26931
Memory Allocation with Excessive Size Value (CWE-789) in the Prometheus remote_write HTTP handler in Metricbeat can lead Denial of Service via Excessive Allocation (CAPEC-130).
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"Metricbeat","vendor":"Elastic","versions":[{"lessThanOrEqual":"8.19.12","status":"affected","version":"8.0.0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:192451c1ca9587aaceba50e482f83c3c04f3506a046934154a758c0981db74d4 · sha256:cc0a6b2d69203a69… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"ADJACENT_NETWORK","availabilityImpact":"HIGH","baseScore":5.7,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:192451c1ca9587aaceba50e482f83c3c04f3506a046934154a758c0981db74d4 · sha256:cc0a6b2d69203a69… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-789","description":"CWE-789 Memory Allocation with Excessive Size Value","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:192451c1ca9587aaceba50e482f83c3c04f3506a046934154a758c0981db74d4 · sha256:cc0a6b2d69203a69… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"url":"https://discuss.elastic.co/t/metricbeat-8-19-13-9-2-5-security-update-esa-2026-09/385532"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:192451c1ca9587aaceba50e482f83c3c04f3506a046934154a758c0981db74d4 · sha256:cc0a6b2d69203a69… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.