CVE catalog
CVE-2026-40011
An attacker sending a large number of crafted DNS queries might be able to trigger a dynamic block being inserted with a value causing invalid output to be produced in the prometheus endpoint. The pro
- Severity
- Medium · CVSS 5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.22% · Oct 25, 2026
An attacker sending a large number of crafted DNS queries might be able to trigger a dynamic block being inserted with a value causing invalid output to be produced in the prometheus endpoint. The prometheus endpoint will then be rejected by the scraper until the dynamic block expires.
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 |
|---|---|---|---|---|
| Debian | dnsdist | sid | 2.1.3-1 | fixed |
| Debian | dnsdist | forky | 2.1.3-1 | fixed |
| Debian | dnsdist | trixie | 1.9.16-0+deb13u1 | fixed |
| Debian | dnsdist | trixie-security | 1.9.16-0+deb13u1 | fixed |
| Debian | dnsdist | bookworm | 1.7.3-2 | vulnerable |
| Cpe | dnsdist | Not reported | Not reported | vulnerable |
| Suse | dnsdist | linux enterprise server 16.0 | 1.9.15-160000.1.1 | fixed |
| Suse | dnsdist | linux enterprise server for sap applications 16.0 | 1.9.15-160000.1.1 | fixed |
| Suse | dnsdist | linux enterprise server 16.0 | 1.9.15-160000.1.1 | fixed |
| Suse | dnsdist | linux enterprise server for sap applications 16.0 | 1.9.15-160000.1.1 | fixed |
| Opensuse | dnsdist | leap 16.0 | 1.9.15-160000.1.1 | fixed |
| Opensuse | dnsdist | tumbleweed | 2.0.7-1.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | dnsdist | source | sid | 2.1.0-1 | not yet assigned | Not reported | Not reported |
| Debian | dnsdist | source | forky | 2.1.0-1 | not yet assigned | Not reported | Not reported |
| Debian | dnsdist | source | trixie | 1.9.15-0+deb13u1 | not yet assigned | Not reported | Not reported |
| Debian | dnsdist | source | bookworm | (unfixed) | end-of-life | Not reported | Not reported |
| Suse | dnsdist | rpm | linux enterprise server 16.0 | 1.9.15-160000.1.1 | Not reported | SUSE-SU-2026:23146-1 | Not reported |
| Suse | dnsdist | rpm | linux enterprise server for sap applications 16.0 | 1.9.15-160000.1.1 | Not reported | SUSE-SU-2026:23146-1 | Not reported |
| Suse | dnsdist | rpm | linux enterprise server 16.0 | 1.9.15-160000.1.1 | Not reported | SUSE-SU-2026:23123-1 | Not reported |
| Suse | dnsdist | rpm | linux enterprise server for sap applications 16.0 | 1.9.15-160000.1.1 | Not reported | SUSE-SU-2026:23123-1 | Not reported |
| Opensuse | dnsdist | rpm | leap 16.0 | 1.9.15-160000.1.1 | Not reported | OPENSUSE-SU-2026:21533-1 | Not reported |
| Opensuse | dnsdist | rpm | tumbleweed | 2.0.7-1.1 | Not reported | OPENSUSE-SU-2026:11411-1 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [dnsdist]Affected
Details (2)
1.7.3-2· amd64 · bookwormAffected
nvd · dnsdist · debian · bookworm; nvd · dnsdist · debian · 12
1.7.3-2· arm64 · bookwormAffected
nvd · dnsdist · debian · bookworm; nvd · dnsdist · debian · 12
[Debian 13 (Trixie)]
- [dnsdist]Fixed
Details (4)
1.9.15-0+deb13u1· amd64 · trixieFixed · Fixed:
1.9.15-0+deb13u1nvd · dnsdist · debian · 13
1.9.15-0+deb13u1· arm64 · trixieFixed · Fixed:
1.9.15-0+deb13u1nvd · dnsdist · debian · 13
1.9.16-0+deb13u1· amd64 · trixie-securityFixed · Fixed:
1.9.15-0+deb13u1nvd · dnsdist · debian · 13
1.9.16-0+deb13u1· arm64 · trixie-securityFixed · Fixed:
1.9.15-0+deb13u1nvd · dnsdist · debian · 13
[openSUSE Tumbleweed]
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_11411-1.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-40011]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-40011]
- [https://osv.dev/vulnerability/SUSE-SU-2026:23123-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:23146-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:11411-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:21533-1]
- [https://security-tracker.debian.org/tracker/CVE-2026-40011]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-40011.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2091.json]
- [https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-09.html]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]