CVE catalog
CVE-2026-48497
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 c
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.40% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Cpe | envoy | Not reported | 1.35.13 | fixed |
| Cpe | envoy | Not reported | 1.36.9 | fixed |
| Cpe | envoy | Not reported | 1.37.5 | fixed |
| Cpe | envoy | Not reported | 1.38.3 | fixed |
| Cpe | envoy | Not reported | 1.38.3 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Cpe | envoy | cpe | Not reported | 1.35.13 | Not reported | Not reported | Not reported |
| Cpe | envoy | cpe | Not reported | 1.36.9 | Not reported | Not reported | Not reported |
| Cpe | envoy | cpe | Not reported | 1.37.5 | Not reported | Not reported | Not reported |
| Cpe | envoy | cpe | Not reported | 1.38.3 | Not reported | Not reported | Not reported |
| Cpe | envoy | cpe | Not reported | 1.38.3 | Not reported | NVD-CVE-2026-48497 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_11141-1.json]
- [https://github.com/envoyproxy/envoy/security/advisories/GHSA-j6g2-wf95-q66q]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-48497]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2048.json]
[CERT-Bund public advisories] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [SUSE security advisories and VEX]