Out-of-bounds Write Affecting cockpit package, versions *


Severity

Recommended
0.0
low
0
10

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Threat Intelligence

EPSS
0.09% (1st percentile)

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  • Snyk IDSNYK-ECHOLATEST-COCKPIT-19946133
  • published19 Sept 2026
  • disclosed18 Sept 2026

Introduced: 18 Sep 2026

NewCVE-2026-91142  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

There is no fixed version for Echo:latest cockpit.

NVD Description

Note: Versions mentioned in the description apply only to the upstream cockpit package and not the cockpit package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

A flaw was found in Cockpit. An integer overflow vulnerability in the do_lastlog() function, specifically in the offset calculation for lastlog entries on ILP32 (Integer, Long, Pointer 32-bit) builds, can be exploited. A low-privileged authenticated user with a specially provisioned large User ID (UID) can cause the computed offset to wrap around. This allows the user to perform unauthorized reads and writes to other users' lastlog records, potentially disclosing or altering sensitive login accounting information.

CVSS Base Scores

version 3.1