Upstream information
Description
Every uncached /avatar/:hash request spawns a goroutine that refreshes the Gravatar image. If the refresh sits in the 10-slot worker queue longer than three seconds, the handler times out and stops listening for the result, so that goroutine blocks forever trying to send on an unbuffered channel. Sustained traffic with random hashes keeps tripping this timeout, so goroutine count grows linearly, eventually exhausting memory and causing Grafana to crash on some systems.SUSE information
Overall state of this security issue: Pending
This issue is currently rated as having important severity.
| CVSS detail | CNA (Grafana Labs) |
|---|---|
| Base Score | 7.5 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| Attack Vector | Network |
| Attack Complexity | Low |
| Privileges Required | None |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality Impact | None |
| Integrity Impact | None |
| Availability Impact | High |
| CVSSv3 Version | 3.1 |
Status of this issue by product and package
Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.
| Product(s) | Source package | State |
|---|---|---|
| Products under general support and receiving all security fixes. | ||
| SUSE Linux Enterprise Module for Package Hub 15 SP5 | grafana | Affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP6 | grafana | Affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP7 | grafana | Affected |
| SUSE Manager Client Tools 12 | grafana | Affected |
| SUSE Manager Client Tools 15 | grafana | Affected |
| SUSE Manager Client Tools for SLE 12 | grafana | Affected |
| SUSE Manager Client Tools for SLE 15 | grafana | Affected |
| SUSE Multi-Linux Manager Client Tools for SLE 12 | grafana | Affected |
| SUSE Multi-Linux Manager Client Tools for SLE 15 | grafana | Affected |
| openSUSE Leap 15.6 | grafana | Affected |
| Products past their end of life and not receiving proactive updates anymore. | ||
| SUSE Linux Enterprise Module for Package Hub 15 SP4 | grafana | Affected |
| openSUSE Leap 15.3 | grafana | Affected |
| openSUSE Leap 15.4 | grafana | Affected |
| openSUSE Leap 15.5 | grafana | Affected |
| Products at an unknown state of their lifecycle. | ||
| SUSE Multi Linux Manager Tools Beta SLE-12 | grafana | Affected |
| SUSE Multi Linux Manager Tools Beta SLE-15 | grafana | Affected |
| SUSE Multi Linux Manager Tools SLE-12 | grafana | Affected |
| SUSE Multi Linux Manager Tools SLE-15 | grafana | Affected |
| Container Status | ||
| ses/7.1/ceph/grafana ses/7/ceph/grafana | grafana | Affected |
SUSE Timeline for this CVE
CVE page created: Tue Jan 27 12:00:42 2026CVE page last modified: Tue Jan 27 16:51:13 2026