CVE catalog
CVE-2026-27880
The OpenFeature feature toggle evaluation endpoint reads unbounded values into memory, which can cause out-of-memory crashes.
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.79% · Oct 25, 2026
A flaw was found in Grafana. A remote attacker can exploit the feature toggle evaluation endpoint by sending unbounded values, causing the system to read excessive data into memory. This can lead to out-of-memory crashes, resulting in a Denial of Service (DoS) for the affected service. Grafana: Grafana: Denial of Service via unbounded memory read in feature toggle evaluation The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Cpe | grafana | Not reported | 12.1.0 | fixed |
| Cpe | grafana | Not reported | 12.2.0 | fixed |
| Cpe | grafana | Not reported | 12.3.0 | fixed |
| Cpe | grafana | Not reported | 12.4.0 | fixed |
| Ubuntu | grafana | 16.04 | 2.6.0+dfsg-1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Cpe | grafana | cpe | Not reported | 12.1.0 | Not reported | Not reported | Not reported |
| Cpe | grafana | cpe | Not reported | 12.2.0 | Not reported | Not reported | Not reported |
| Cpe | grafana | cpe | Not reported | 12.3.0 | Not reported | Not reported | Not reported |
| Cpe | grafana | cpe | Not reported | 12.4.0 | Not reported | Not reported | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed:
References
- [https://nvd.nist.gov/vuln/detail/CVE-2026-27880]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-27880]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-27880.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0899.json]
[CERT-Bund public advisories] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]