CVE-2026-48497

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Source
https://cve.org/CVERecord?id=CVE-2026-48497
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-48497.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-48497
Aliases
Downstream
Related
Published
2026-06-26T17:32:58.310Z
Modified
2026-07-08T08:26:35.454405046Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Envoy: Abnormal process termination in DNS UDP filter
Details

Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.35.11, 1.36.7, 1.37.3, and 1.38.1, in cases where UDP DNS filter is configured with local resolution containing a name with the length of 255 octets or remote resolution for a name of 255 octets long can complete successfully, a query with such name will result in abnormal process termination. The abnormal process termination is triggered by an invalid runtime precondition that the query name is strictly less than 255 octets, contradicting DNS specification rfc1035#section-2.3.4 that the name can be 255 or less octets. This vulnerability is fixed in 1.35.11, 1.36.7, 1.37.3, and 1.38.1.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48497.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-480"
    ]
}
References

Affected packages

Git / github.com/envoyproxy/envoy

Affected ranges

Type
GIT
Repo
https://github.com/envoyproxy/envoy
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
adb998f2875986005be294d10231a9c9a497e30d
Introduced
63ee0dc79dce88117c6bd2df5a742f8eb67ea980
Fixed
57198c441a298a75097c690726d90974549a9778
Introduced
6d9bb7d9a85d616b220d1f8fe67b61f82bbdb8d3
Fixed
f97695a50e11f5ff6719e129a466bf9204b64a7f
Introduced
f1dd21b16c244bda00edfb5ffce577e12d0d2ec2
Fixed
0ebfcfe5b0484b89ca85b761da9e05ce75dbda8d
Database specific 
{
    "source": "CPE_RANGE",
    "cpe": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.35.13"
        },
        {
            "introduced": "1.36.0"
        },
        {
            "fixed": "1.36.9"
        },
        {
            "introduced": "1.37.0"
        },
        {
            "fixed": "1.37.5"
        },
        {
            "introduced": "1.38.0"
        },
        {
            "fixed": "1.38.3"
        }
    ]
}

Affected versions

v1.*
v1.0.0
v1.1.0
v1.10.0
v1.11.0
v1.12.0
v1.13.0
v1.14.0
v1.15.0
v1.16.0
v1.17.0
v1.18.0
v1.18.1
v1.18.2
v1.19.0
v1.2.0
v1.20.0
v1.21.0
v1.22.0
v1.23.0
v1.24.0
v1.25.0
v1.26.0
v1.27.0
v1.28.0
v1.29.0
v1.3.0
v1.30.0
v1.31.0
v1.32.0
v1.33.0
v1.34.0
v1.35.0
v1.35.1
v1.35.10
v1.35.11
v1.35.12
v1.35.2
v1.35.3
v1.35.4
v1.35.5
v1.35.6
v1.35.7
v1.35.8
v1.35.9
v1.36.0
v1.36.1
v1.36.2
v1.36.3
v1.36.4
v1.36.5
v1.36.6
v1.36.7
v1.36.8
v1.37.0
v1.37.1
v1.37.2
v1.37.3
v1.37.4
v1.38.0
v1.38.1
v1.38.2
v1.4.0
v1.5.0
v1.6.0
v1.7.0
v1.8.0
v1.9.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-48497.json"