CVE-2026-27880
OpenFeature evaluation API reads input data with no bounds
Description
The OpenFeature feature toggle evaluation endpoint reads unbounded values into memory, which can cause out-of-memory crashes.
INFO
Published Date :
March 27, 2026, 3:16 p.m.
Last Modified :
March 31, 2026, 6:56 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Validate and limit the size of input values.
- Implement memory usage controls for feature evaluations.
- Update the OpenFeature SDK to the latest version.
- Apply relevant security patches.
Public PoC/Exploit Available at Github
CVE-2026-27880 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-27880.
| URL | Resource |
|---|---|
| https://grafana.com/security/security-advisories/cve-2026-27880 | Vendor Advisory |
| https://grafana.com/security/security-advisories/cve-2026-27880 | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-27880 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-27880
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
CVE-2026-27876
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-27880 vulnerability anywhere in the article.
-
CybersecurityNews
Critical Grafana Vulnerabilities Let Attackers Achieve Remote Code Execution
Urgent security updates for Grafana version 12.4.2 address two critical vulnerabilities that could allow attackers to achieve full remote code execution (RCE) and execute denial-of-service (DoS) attac ... Read more
-
Daily CyberSecurity
SQL to SSH: Critical 9.1 CVSS RCE in Grafana Turns Monitoring into a Remote Hijack
The Grafana team has released an urgent security advisory following the discovery of two significant vulnerabilities that could allow attackers to hijack servers or crash instances. The release of Gra ... Read more
The following table lists the changes that have been made to the
CVE-2026-27880 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Mar. 31, 2026
Action Type Old Value New Value Added CWE CWE-787 Added CPE Configuration OR *cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:* versions from (including) 12.1.10 up to (excluding) 12.2.0 *cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:* versions from (including) 12.2.8 up to (excluding) 12.3.0 *cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:* versions from (including) 12.3.6 up to (excluding) 12.4.0 *cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:* versions up to (excluding) 12.1.0 Added Reference Type CISA-ADP: https://grafana.com/security/security-advisories/cve-2026-27880 Types: Vendor Advisory Added Reference Type Grafana Labs: https://grafana.com/security/security-advisories/cve-2026-27880 Types: Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Mar. 27, 2026
Action Type Old Value New Value Added Reference https://grafana.com/security/security-advisories/cve-2026-27880 -
New CVE Received by [email protected]
Mar. 27, 2026
Action Type Old Value New Value Added Description The OpenFeature feature toggle evaluation endpoint reads unbounded values into memory, which can cause out-of-memory crashes. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added Reference https://grafana.com/security/security-advisories/cve-2026-27880