Description (CNA)
Unfurl before 2026.04 contains an unbounded zlib decompression vulnerability in parse_compressed.py that allows remote attackers to cause denial of service. Attackers can submit highly compressed payloads via URL parameters to the /json/visjs endpoint that expand to gigabytes, exhausting server memory and crashing the service.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| obsidianforensics / unfurl | affected 0 before 2026.04 |
CWE
CWE-770, CWE-409
References
- https://github.com/obsidianforensics/unfurl/security/advisories/GHSA-h5qv-qjv4-pc5m
- https://github.com/obsidianforensics/unfurl/releases/tag/v2026.04
- https://www.vulncheck.com/advisories/dfir-unfurl-denial-of-service-via-unbounded-zlib-decompression
ADP enrichment
No English description supplied.
No references supplied.