Resource Exhaustion Affecting nextcloud-server-34 package, versions <34.0.1-r5


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.61% (48th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-NEXTCLOUDSERVER34-17875565
  • published7 Jul 2026
  • disclosed27 Mar 2026

Introduced: 27 Mar 2026

CVE-2026-33750  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade Chainguard nextcloud-server-34 to version 34.0.1-r5 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nextcloud-server-34 package and not the nextcloud-server-34 package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

The brace-expansion library generates arbitrary strings containing a common prefix and suffix. Prior to versions 5.0.5, 3.0.2, 2.0.3, and 1.1.13, a brace pattern with a zero step value (e.g., {1..2..0}) causes the sequence generation loop to run indefinitely, making the process hang for seconds and allocate heaps of memory. Versions 5.0.5, 3.0.2, 2.0.3, and 1.1.13 fix the issue. As a workaround, sanitize strings passed to expand() to ensure a step value of 0 is not used.

CVSS Base Scores

version 3.1