SB2026072433 - Uncontrolled Memory Allocation in Loki

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Main Vulnerability Database SB2026072433

SB2026072433 - Uncontrolled Memory Allocation in Loki

Published: July 24, 2026

Security Bulletin ID SB2026072433
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Uncontrolled Memory Allocation (CVE-ID: CVE-2026-21729)

CWE-ID: CWE-789 - Uncontrolled Memory Allocation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to uncontrolled memory allocation in the detected_fields endpoint when processing a user-supplied limit query parameter. A remote attacker can send a specially crafted request with a massive limit value to cause a denial of service.

The issue can trigger out-of-memory conditions even when there are no matching results.


Remediation

Install update from vendor's website.

References