CVE-2026-31609 Affecting perf6.18-debuginfo package, versions <1:6.18.25-52.107.amzn2023


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.46% (37th percentile)

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  • Snyk IDSNYK-AMZN2023-PERF618DEBUGINFO-17287123
  • published10 Jun 2026
  • disclosed24 Apr 2026

Introduced: 24 Apr 2026

CVE-2026-31609  (opens in a new tab)
CWE-1341  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 perf6.18-debuginfo to version 1:6.18.25-52.107.amzn2023 or higher.
This issue was patched in ALAS2023-2026-1746.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perf6.18-debuginfo package and not the perf6.18-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

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

smb: client: avoid double-free in smbd_free_send_io() after smbd_send_batch_flush()

smbd_send_batch_flush() already calls smbd_free_send_io(), so we should not call it again after smbd_post_send() moved it to the batch list.

CVSS Base Scores

version 3.1