How severe is CVE-2026-44283?

CVE-2026-44283 has a CVSS 3.x base score of 0.0, rated none severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability none.

Is CVE-2026-44283 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-44283?

CVE-2026-44283 affects Etcd. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-44283?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-44283 have an EU (EUVD) identifier?

Yes. CVE-2026-44283 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30345.

When was CVE-2026-44283 published?

CVE-2026-44283 was published on 2026-05-14 and last updated on 2026-06-17.

CVE-2026-44283

CVE-2026-44283 is a none-severity vulnerability in Etcd with a CVSS 3.x base score of 0.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-863.

Key facts

Severity: None (CVSS 3.x base score 0.0)
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-30345
Weakness: CWE-863
Affected product: Etcd
Published: 2026-05-14
Last modified: 2026-06-17

Description

etcd is a distributed key-value store for the data of a distributed system. Prior to 3.4.44, 3.5.30, and 3.6.11, a vulnerability in etcd allows read access via PrevKv, or lease attachment in Put requests within transaction operations, to bypass RBAC authorization checks. An authenticated user without sufficient read or lease-related permissions may be able to access unauthorized data or attach leases by invoking transaction operations with these features enabled. This vulnerability is fixed in 3.4.44, 3.5.30, and 3.6.11.

Frequently asked questions

What is CVE-2026-44283?: etcd is a distributed key-value store for the data of a distributed system. Prior to 3.4.44, 3.5.30, and 3.6.11, a vulnerability in etcd allows read access via PrevKv, or lease attachment in Put requests within transaction operations, to bypass RBAC authorization checks. An authenticated user without sufficient read or lease-related permissions may be able to access unauthorized data or attach leases by invoking transaction operations with these features enabled. This vulnerability is fixed in 3.4.44, 3.5.30, and 3.6.11.
How severe is CVE-2026-44283?: CVE-2026-44283 has a CVSS 3.x base score of 0.0, rated none severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability none.
Is CVE-2026-44283 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-44283?: CVE-2026-44283 affects Etcd. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-44283?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-44283 have an EU (EUVD) identifier?: Yes. CVE-2026-44283 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30345.
When was CVE-2026-44283 published?: CVE-2026-44283 was published on 2026-05-14 and last updated on 2026-06-17.

References

https://github.com/etcd-io/etcd/security/advisories/GHSA-x35m-3gp4-4fh5

Affected products (1)

cpe:2.3:a:etcd:etcd:*:*:*:*:*:*:*:*

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