What is GHSA-pmgg-x2vj-36cv?

GHSA-pmgg-x2vj-36cv is a security advisory published by GitHub Security Advisories with Critical severity. iperf3 3.21 (esnet/iperf) contains a remote, unauthenticated heap use-after-free: the server's...

Which CVE IDs does GHSA-pmgg-x2vj-36cv cover?

GHSA-pmgg-x2vj-36cv covers the following CVE IDs: CVE-2026-101276. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

GHSA-pmgg-x2vj-36cvCritical

iperf3 3.21 (esnet/iperf) contains a remote, unauthenticated heap use-after-free: the server's...

Vendor

GitHub Security Advisories

Published

September 30, 2026

Last Modified

September 30, 2026

🔗 CVE IDs covered (1)

CVE-2026-101276 →

📋 Description

iperf3 3.21 (esnet/iperf) contains a remote, unauthenticated heap use-after-free: the server's per-test watchdog server_timer_proc() frees streams without cancelling/joining their worker threads, so a blocked worker dereferences a freed iperf_stream; fixed in 3.22.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-101276
https://newreleases.io/project/github/esnet/iperf/release/3.22
https://github.com/advisories/GHSA-pmgg-x2vj-36cv