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        "state": "PUBLISHED",
        "assignerShortName": "NLnet Labs",
        "dateReserved": "2026-10-14T09:16:14.093Z",
        "datePublished": "2026-10-21T08:57:26.986Z",
        "dateUpdated": "2026-10-29T19:07:33.197Z"
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            "title": "Aggregate DNS name chained pointer decompression work leads to degradation of service.",
            "datePublic": "2026-10-21T00:00:00.000Z",
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                    "vendor": "NLnet Labs",
                    "product": "Unbound",
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                            "version": "0",
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                            "lessThan": "1.26.2",
                            "versionType": "semver"
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                    "lang": "en",
                    "value": "NLnet Labs Unbound up to and including version 1.26.1 limits compression-pointer traversal for each individual domain-name operation but has no aggregate inbound decompression-work budget. Many chained compression pointers in a message results in a lot of CPU usage following them. A malicious actor with recursive-query access and control of an ordinarily delegated authority that serves specially crafted replies can exploit the vulnerability and degrade Unbound's general performance."
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                            "cweId": "CWE-770",
                            "description": "CWE-770: Allocation of Resources Without Limits or Throttling",
                            "type": "CWE"
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            "solutions": [
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                    "lang": "en",
                    "value": "This issue is fixed starting with version 1.26.2"
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                {
                    "time": "2026-07-16T00:00:00.000Z",
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                    "value": "Issue reported by Yuheng Zhang"
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                    "time": "2026-09-30T00:00:00.000Z",
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                    "time": "2026-09-16T00:00:00.000Z",
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                    "value": "Yuheng Zhang (Tsinghua University & Jingxian Technology Co., Ltd.)",
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                    "lang": "en",
                    "value": "Jianjun Chen (Tsinghua University)",
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                    "value": "Zihan Wang (Z.AI Co., Ltd.)",
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                    "value": "Kaiwen Shen (CloudItera)",
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            "references": [
                {
                    "url": "https://www.nlnetlabs.nl/downloads/unbound/CVE-2026-96405.txt",
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                                        "Exploitation": "none"
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