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.
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Affected Vendors & Products
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Solution
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References
History
Sun, 08 Nov 2026 01:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | imgproxy 3.3.0 before 4.0.16 Memory Exhaustion DoS via ICO Loader | |
| First Time appeared |
Evilmartians
Evilmartians imgproxy |
|
| Weaknesses | CWE-789 | |
| CPEs | cpe:2.3:a:evilmartians:imgproxy:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Evilmartians
Evilmartians imgproxy |
|
| References |
| |
| Metrics |
cvssV3_1
|
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MITRE
Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-11-08T01:38:40.389Z
Reserved: 2026-11-06T01:04:42.201Z
Link: CVE-2026-123616
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Weaknesses