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TI-2025-28482 Aliases CVE-2025-43915GHSA-42mr-jpwh-m9rv

In Linkerd edge releases before edge-25.2.1, and Buoyant Enterprise for Linkerd releases…

Priority LOW 29CWE-400Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Denial of service
Confidentiality · integrity · availability
None · Low · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-400.

Summary

In Linkerd edge releases before edge-25.2.1, and Buoyant Enterprise for Linkerd releases 2.13.0–2.13.7, 2.14.0–2.14.10, 2.15.0–2.15.7, 2.16.0–2.16.4, and 2.17.0–2.17.1, resource exhaustion can occur for Linkerd proxy metrics.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00336 27th percentileScored 2026-11-07
Fix Fixed github.com/linkerd/linkerd2 (Go): 0.0.0-20250212165942-faa3f617eef5

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—github.com/linkerd/linkerd2 (Go)before 0.0.0-20250212165942-faa3f617eef50.0.0-20250212165942-faa3f617eef5Patch availableGHSA-42mr-jpwh-m9rv
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • github.com/linkerd/linkerd2 (Go) Vendor— Affected before 0.0.0-20250212165942-faa3f617eef5 Fixed in 0.0.0-20250212165942-faa3f617eef5 Patch available GHSA-42mr-jpwh-m9rv

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:linkerd:buoyant:*:*:*:*:enterprise:linkerd:*:*2.13.0 – 2.13.7; 2.14.0 – 2.14.10; 2.15.0 – 2.15.7; 2.16.0 to before 2.16.5; 2.17.0 to before 2.17.2Vulnerablelinkerd
cpe:2.3:a:linkerd:linkerd:*:*:*:*:edge:kubernetes:*:*before 25.2.1Vulnerablelinkerd
  • cpe:2.3:a:linkerd:buoyant:*:*:*:*:enterprise:linkerd:*:* Versions 2.13.0 – 2.13.7; 2.14.0 – 2.14.10; 2.15.0 – 2.15.7; 2.16.0 to before 2.16.5; 2.17.0 to before 2.17.2 Vulnerable ·linkerd
  • cpe:2.3:a:linkerd:linkerd:*:*:*:*:edge:kubernetes:*:* Versions before 25.2.1 Vulnerable ·linkerd

Remediation

  • Fix · GHSA-42mr-jpwh-m9rv github.com/linkerd/linkerd2 (Go) Fixed in 0.0.0-20250212165942-faa3f617eef5 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-43915
  2. 2026-10-03 Alias added: GHSA-42mr-jpwh-m9rv

References

Advisory 2

Other 4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences