CVE-2026-34984: External Secrets Operator reads information from a third-party service and automatically injects the values as

Q: How do I fix CVE-2026-34984?

external secrets operator: upgrade to 2.3.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-34984 being exploited?

CVE-2026-34984 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-34984 affect?

CVE-2026-34984 affects external secrets operator. Severity is medium (CVSS 6.5). External Secrets Operator reads information from a third-party service and automatically injects the values as Kubernetes Secrets. Versions 2.2.0 and below contain a vulnerability in runtime/template/v2/template.go where the v2 template eng

Q: How urgent is CVE-2026-34984?

Priority 27/100. No elevated risk signals yet.

Routine

MEDIUM 6.5UPGRADE

CVE-2026-34984 is a medium-severity flaw (CVSS 6.5) affecting external secrets operator. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

External Secrets Operator reads information from a third-party service and automatically injects the values as Kubernetes Secrets. Versions 2.2.0 and below contain a vulnerability in runtime/template/v2/template.go where the v2 template engine removes env and expandenv from Sprig's TxtFuncMap() but leaves the getHostByName function accessible to user-controlled templates. Since ESO executes templates within the controller process, an attacker who

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 82%)
CISA exploited list	No
Weakness	CWE-200
Published	2026-04-14
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: external-secrets

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-14 03:16 UTCPublished CVE record published
2026-06-17 10:39 UTCUpdated Record last modified

external-secrets external secrets operator UPGRADE

Affected: < 2.3.0

Fixed in: 2.3.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy external-secrets-operator || rpm -q external-secrets-operator || external-secrets-operator --version

2. UPGRADE to 2.3.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade external-secrets-operator

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade external-secrets-operator

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-34984?

external secrets operator: upgrade to 2.3.0. Exact commands for each OS are on this page.

Is CVE-2026-34984 being exploited?

CVE-2026-34984 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-34984 affect?

CVE-2026-34984 affects external secrets operator. Severity is medium (CVSS 6.5). External Secrets Operator reads information from a third-party service and automatically injects the values as Kubernetes Secrets. Versions 2.2.0 and below contain a vulnerability in runtime/template/v2/template.go where the v2 template eng

How urgent is CVE-2026-34984?

Priority 27/100. No elevated risk signals yet.

Software pages

Kubernetes vulnerabilities

References

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