CVE-2026-123501
Deferred Deferred - Pending Action

Memory Exhaustion in Vikunja via PNG Decode

Publication date: 2026-11-08

Last updated on: 2026-11-08

Assigner: VulnCheck

Description
Vikunja before 2.7.1 contains an uncontrolled resource consumption vulnerability that allows authenticated users to exhaust server memory through concurrent image decodes in avatar and background uploads. Attackers can send several parallel tiny, highly compressible PNGs decoded at up to 50 megapixels each, pushing the API process into memory pressure or an OOM kill.

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Meta Information

Published
2026-11-08
Last Modified
2026-11-08
Generated
2026-11-08
EPSS Evaluated
N/A
NVD
CVE-2026-123501
EUVD
EUVD-2026-119386

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
vikunja vikunja to 2.7.1 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-400 The product does not properly control the allocation and maintenance of a limited resource.

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