CVE-2026-34984
External Secrets Operator has DNS-based secret exfiltration via getHostByName in External Secrets v2 template engine in github.com/external-secrets/external-secrets
Description
External Secrets Operator has DNS-based secret exfiltration via getHostByName in External Secrets v2 template engine in github.com/external-secrets/external-secrets. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. (If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.) The additional affected modules and versions are: .
How to fix CVE-2026-34984
To remediate CVE-2026-34984, upgrade the affected package to a fixed version below.
- —upgrade to 1.3.3-0.20260331202714-6800989bdc12 or later
- —upgrade to 1.3.3-0.20260331202714-6800989bdc12 or later
Is CVE-2026-34984 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 1.3.3-0.20260331202714-6800989bdc12
- from 0, < 1.3.3-0.20260331202714-6800989bdc12
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |