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CVE-2026-123523 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

Vikunja before 2.7.1 contains an uncontrolled resource consumption vulnerability that allows authenticated users to exhaust server memory by requesting avatars at many distinct sizes. Attackers can upload a noisy avatar and fetch it at each size up to 1024, caching roughly a gigabyte per account without eviction and causing the API process to be OOM-killed.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CNA: [email protected]CVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/go-vikunja/vikunja/security/advisories/GHSA-3x3m-2j93-w46j	[email protected]	AdvisoryExploitTechnical AnalysisVendor
https://www.vulncheck.com/advisories/vikunja-before-2.7.1-memory-exhaustion-via-unbounded-avatar-size-cache	[email protected]	AdvisoryRemedy

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-770	Allocation of Resources Without Limits or Throttling	[email protected]

Affected Products

Product	Versions
Vikunja	<= 2.7.0 (semver)
CPE No CPEs found in CPE dictionary for this product. Remediation Upgrade: 2.7.1moderate effort

Change History

1 change record found show changes