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CVE-2026-91971: Vikunja: Unbounded image decode on avatar and project-background uploads enables decode/resize amplification

HIGH CVSS 0.0 EPSS 0.44% Exploit Available 1 PoC

Published: October 9, 2026 | Last Modified: October 9, 2026

Description

Vikunja: Unbounded image decode on avatar and project-background uploads enables decode/resize amplification

Ghostwire Analysis — What This Means Practically

Exploitation Probability (EPSS): Low — 0.44% (36th percentile)

Low exploitation probability based on current threat landscape data. Standard patching timeline is appropriate.

This analysis is generated by Ghostwire from NVD, CISA KEV, EPSS, and open-source intelligence data. Verify findings through primary sources before acting.

Proof-of-Concept Exploits (1)

References