CVE-2026-4893

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Source
https://cve.org/CVERecord?id=CVE-2026-4893
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-4893.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-4893
Downstream
ALPINE (1)
AZL (1)
BELL (1)
CGA (4)
CLEANSTART (2)
CLSA (3)
DEBIAN (1)
MGASA (1)
OESA (5)
openSUSE (2)
RHSA (4)
RLSA (3)
SUSE (6)
UBUNTU (1)
Related
ALSA (3)
openSUSE (2)
SUSE (6)
Published
2026-05-11T16:48:15Z
Modified
2026-10-22T10:34:51Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
Summary
CVE-2026-4893
Details

An information disclosure vulnerability in dnsmasq allows remote attackers to bypass source checks via a crafted DNS packet with RFC 7871 client subnet information.

Database specific 
{
    "cna_assigner": "certcc",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/4xxx/CVE-2026-4893.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "range": [
                        {
                            "fixed": "2.92rel2"
                        }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                }
            ]
        }
    ]
}
References

Affected packages

Git / github.com/pi-hole/ftl

Affected ranges

Type
GIT
Repo
https://github.com/pi-hole/ftl
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
82c58cc45435ddd77875daf368cf64398bc15966
Database specific
Show details 
{
    "extracted_events": [
        {
            "original_tag": "v6.6.2",
            "range": [
                {
                    "fixed": "82c58cc45435ddd77875daf368cf64398bc15966"
                }
            ],
            "source": "REFERENCES_TAG"
        }
    ]
}

Affected versions

v1.*
v1.0
v1.1
v1.10
v1.10.1
v1.10.2
v1.10.3
v1.11
v1.11.1
v1.2
v1.2.1
v1.3
v1.3.1
v1.4
v1.5
v1.5.1
v1.6
v1.7
v1.8
v1.9
v2.*
v2.0
v2.1
v2.10
v2.11
v2.11.1
v2.12
v2.13
v2.13.1
v2.13.2
v2.2
v2.3
v2.3.1
v2.4
v2.4.1
v2.5
v2.6
v2.6.1
v2.6.2
v2.7
v2.7.1
v2.7.2
v2.7.3
v2.7.4
v2.8
v2.9
v2.9.1
v2.9.2
v2.9.3
v2.9.4
v3.*
v3.0
v4.*
v4.0
v4.1
v4.1.1
v4.1.2
v4.2
v4.2.1
v4.2.2
v4.2.3
v4.3
v4.3.1
v5.*
v5.0
v5.1
v5.10
v5.10.1
v5.10.2
v5.11
v5.12
v5.12.1
v5.13
v5.14
v5.15
v5.16
v5.16.1
v5.16.2
v5.16.3
v5.17
v5.18
v5.18.1
v5.18.2
v5.19
v5.19.1
v5.19.2
v5.2
v5.20
v5.20.1
v5.21
v5.22
v5.23
v5.24
v5.25
v5.25.1
v5.25.2
v5.3
v5.3.1
v5.3.2
v5.3.3
v5.3.4
v5.4
v5.5
v5.5.1
v5.6
v5.7
v5.8
v5.8.1
v5.9
v6.*
v6.0
v6.0.1
v6.0.2
v6.0.3
v6.0.4
v6.1
v6.2
v6.2.1
v6.2.2
v6.2.3
v6.3
v6.3.1
v6.3.2
v6.3.3
v6.4.1
v6.5
v6.6
v6.6.1

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-4893.json"