Allocation of Resources Without Limits or Throttling Affecting github.com/linkerd/linkerd2/cli/cmd package, versions <25.2.1
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-GOLANG-GITHUBCOMLINKERDLINKERD2CLICMD-10946356
- published25 Jul 2025
- disclosed20 May 2025
- creditJohn Howard
Introduced: 20 May 2025
CVE-2025-43915 Â (opens in a new tab)How to fix?
Upgrade github.com/linkerd/linkerd2/cli/cmd to version 25.2.1 or higher.
Overview
Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling due to improper handling of inbound network traffic with hostname label. An attacker can cause a denial of service by sending requests with a large number of unique hostnames that may overwhelm metrics ingestion infrastructure.