CVE-2026-123616
imgproxy 3.3.0 before 4.0.16 Memory Exhaustion DoS via ICO Loader
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
imgproxy from 3.3.0 before 4.0.16 contains an unbounded memory allocation vulnerability in the ICO loader that fails to validate the data_size field. Attackers can supply a crafted 23-byte ICO file declaring a ~4GB data_size to trigger memory exhaustion and worker crashes without authentication.
| CWE | CWE-789 |
| Vendor | imgproxy |
| Product | imgproxy |
| Published | Nov 8, 2026 |
Stay Ahead of the Next One
Get instant alerts for imgproxy imgproxy
Be the first to know when new high vulnerabilities affecting imgproxy imgproxy are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
imgproxy / imgproxy
3.3.0 < 4.0.16
References
Credits
🔍 haileyok