CVE-2026-42005

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Source
https://cve.org/CVERecord?id=CVE-2026-42005
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42005.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-42005
Downstream
DEBIAN (1)
openSUSE (2)
SUSE (2)
UBUNTU (1)
Related
openSUSE (2)
SUSE (2)
Published
2026-06-25T11:57:16Z
Modified
2026-10-27T07:16:30Z
Severity
  • 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Summary
Insufficient input validation of internal web server
Details

An attacker can send a web request that causes unlimited memory allocation in the internal web server, leading to a denial of service. The internal web server is disabled by default.

Database specific 
{
    "cna_assigner":  "OX",
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42005.json"
}
References

Affected packages

Git / github.com/powerdns/pdns

Affected ranges

Type
GIT
Repo
https://github.com/powerdns/pdns
Events
Introduced
99d7f7a403baf29714a9f640c24f106c402c5891
Fixed
7c1b70088307490488d0db23ced174fcad9ff0a6
Introduced
d1499af06af5dfdff785e9b0595ee692074dba6e
Fixed
bedb98023c7c20eddaeb63662a72c22b1ed15c34
Introduced
f6109dd21a7e7a936912a5c7605a88b4f10719b3
Fixed
9872469c75619fd857e63f31aab165e63a6dbec5
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "4.9.0"
                },
                {
                    "fixed":  "4.9.16"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StandardRange"
        },
        {
            "range":  [
                {
                    "introduced":  "5.0.0"
                },
                {
                    "fixed":  "5.0.6"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StandardRange"
        },
        {
            "range":  [
                {
                    "introduced":  "5.1.0"
                },
                {
                    "fixed":  "5.1.2"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StandardRange"
        }
    ]
}

Affected versions

rec-5.*
rec-5.0.0
rec-5.0.0-rc2
rec-5.0.1
rec-5.0.3
rec-5.0.5
rec-5.1.0
rec-5.1.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42005.json"
vanir_signatures 
[
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "149977703169693183970481022797089936531",
                "128800879354160129135192148672564007913",
                "194495915763764426460250727679407693777",
                "301358666311042758090520590971451344316",
                "108333809648636550108848020263271164138",
                "302283086660993946339744286960854591367",
                "146485727435344565036667152563049843607",
                "21473893049952292151124117765904740188",
                "128387126165100483431975823158888248599",
                "175913592699814803004011903524774806640",
                "126464941360936261869796750946822632760",
                "323024048001473663020295365652119218843",
                "322343155045960585134841169695977094416",
                "320963312289492138364242567080894622589",
                "173213027477966697672281318542692063133",
                "103778123790719189400834905417306033715",
                "37268508562009860443609354301301880124",
                "262138621126659433039107303462253244753",
                "39375183591857516344602869033912555084",
                "108333809648636550108848020263271164138",
                "302283086660993946339744286960854591367",
                "146485727435344565036667152563049843607",
                "21473893049952292151124117765904740188",
                "128387126165100483431975823158888248599",
                "175913592699814803004011903524774806640",
                "126464941360936261869796750946822632760",
                "323024048001473663020295365652119218843",
                "322343155045960585134841169695977094416",
                "320963312289492138364242567080894622589",
                "173213027477966697672281318542692063133",
                "250583059997623998670205291640302319047",
                "326218598847239084116976408860006675095",
                "215297024700022141306993727489588481608",
                "3074995750411330785293275916231266670"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2026-42005-c17c52ca",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/powerdns/pdns/commit/9872469c75619fd857e63f31aab165e63a6dbec5",
        "target":  {
            "file":  "pdns/recursordist/recursor_cache.cc"
        }
    }
]
vanir_signatures_modified 
"2026-10-27T07:16:30Z"