CVE-2026-27880 | Grafana up to 12.1.9/12.2.7/12.3.5/12.4.1 OpenFeature denial of service

VDB-353917 · CVE-2026-27880 · GCVE-0-2026-27880 GRAFANA UP TO 12.1.9/12.2.7/12.3.5/12.4.1 OPENFEATURE DENIAL OF SERVICE HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 6.3 $0-$5k 1.27+ Summaryinfo A vulnerability marked as problematic has been reported in Grafana up to 12.1.9/12.2.7/12.3.5/12.4.1. This vulnerability affects unknown code of the component OpenFeature. This manipulation causes denial of service. This vulnerability is tracked as CVE-2026-27880. The attack is possible to be carried out remotely. No exploit exists. It is suggested to upgrade the affected component. Detailsinfo A vulnerability classified as problematic was found in Grafana up to 12.1.9/12.2.7/12.3.5/12.4.1. Affected by this vulnerability is an unknown code of the component OpenFeature. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is: The OpenFeature feature toggle evaluation endpoint reads unbounded values into memory, which can cause out-of-memory crashes. The advisory is shared at grafana.com. This vulnerability is known as CVE-2026-27880 since 02/24/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue. Upgrading to version 12.1.10, 12.2.8, 12.3.6 or 12.4.2 eliminates this vulnerability. Productinfo Name Grafana Version 12.1.0 12.1.1 12.1.2 12.1.3 12.1.4 12.1.5 12.1.6 12.1.7 12.1.8 12.1.9 12.2.0 12.2.1 12.2.2 12.2.3 12.2.4 12.2.5 12.2.6 12.2.7 12.3.0 12.3.1 12.3.2 12.3.3 12.3.4 12.3.5 12.4.0 12.4.1 License open-source CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 6.4 VulDB Meta Temp Score: 6.3 VulDB Base Score: 5.3 VulDB Temp Score: 5.1 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 7.5 CNA Vector (GRAFANA): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Denial of service CWE: CWE-404 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: Grafana 12.1.10/12.2.8/12.3.6/12.4.2 Timelineinfo 02/24/2026 CVE reserved 03/27/2026 +31 days Advisory disclosed 03/27/2026 +0 days VulDB entry created 03/27/2026 +0 days VulDB entry last update Sourcesinfo Advisory: grafana.com Status: Confirmed CVE: CVE-2026-27880 (🔒) GCVE (CVE): GCVE-0-2026-27880 GCVE (VulDB): GCVE-100-353917 Entryinfo Created: 03/27/2026 15:44 Changes: 03/27/2026 15:44 (63) Complete: 🔍 Cache ID: 99:588:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸