Distribution advisory
This page covers CVE-2026-42154 as tracked by Go (Root.io), for the package prometheus. The fix is available in version v0.308.1-aikido.3; earlier versions remain affected.
How this vulnerability can be exploited
This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.
CVSS metrics in full
The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Attack vector: Network — reachable from anywhere that can route to the service.
- Attack complexity: Low — the attack works reliably, with no preparation.
- Privileges required: None — an unauthenticated stranger can try it.
- User interaction: None — nobody has to be tricked into anything.
- Scope: Unchanged — the damage stays inside the vulnerable component.
- Confidentiality impact: None.
- Integrity impact: None.
- Availability impact: High — total loss, or loss the attacker controls.
Weakness class
ROOT-APP-GOBINARY-CVE-2026-42154 is classified as CWE-400: Uncontrolled Resource Consumption. A request can consume memory, CPU or storage without limit, exhausting capacity for everyone else.
Affected software
ROOT-APP-GOBINARY-CVE-2026-42154 is recorded against 2 packages.
- github.com/prometheus/prometheus (fixed in v0.308.1-aikido.3)
- rootio-github.com/prometheus/prometheus (fixed in v0.308.1-root.io.3)
Timeline and source
Published on 18 June 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.
Other advisories for this package
github.com/prometheus/prometheus has other advisories on record. If you are patching this one, these are worth checking on the same host:
Same weakness in other software
These advisories are the same class of weakness (CWE-400: Uncontrolled Resource Consumption) in other software:
