CVE-2026-45901 Affecting linux-qemu-melange package, versions <6.18.49-r2


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.16% (5th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-LINUXQEMUMELANGE-19656026
  • published10 Sept 2026
  • disclosed27 May 2026

Introduced: 27 May 2026

CVE-2026-45901  (opens in a new tab)

How to fix?

Upgrade Chainguard linux-qemu-melange to version 6.18.49-r2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream linux-qemu-melange package and not the linux-qemu-melange package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nf_tables: revert commit_mutex usage in reset path

It causes circular lock dependency between commit_mutex, nfnl_subsys_ipset and nlk_cb_mutex when nft reset, ipset list, and iptables-nft with '-m set' rule run at the same time.

Previous patches made it safe to run individual reset handlers concurrently so commit_mutex is no longer required to prevent this.

CVSS Base Scores

version 3.1