GHSA-c3f2-qg8v-25q2

Source

https://github.com/advisories/GHSA-c3f2-qg8v-25q2

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-c3f2-qg8v-25q2/GHSA-c3f2-qg8v-25q2.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-c3f2-qg8v-25q2

Withdrawn

2026-04-10T17:18:31Z

Published

2026-04-09T00:31:59Z

Modified

2026-04-10T17:34:50Z

Severity

7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator

Summary

Duplicate Advisory: Unfurl's unbounded zlib decompression allows decompression bomb DoS

Details

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-h5qv-qjv4-pc5m. This link is maintained to preserve external references.

Original Description

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.

Database specific

{
    "cwe_ids": [
        "CWE-409"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-04-10T17:18:31Z",
    "nvd_published_at": "2026-04-08T22:16:24Z",
    "severity": "HIGH"
}

References

Affected packages

PyPI / dfir-unfurl

Package

Name: dfir-unfurl; View open source insights on deps.dev
Purl: pkg:pypi/dfir-unfurl

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

2026.04

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-c3f2-qg8v-25q2/GHSA-c3f2-qg8v-25q2.json"