How severe is CVE-2023-46739?

CVE-2023-46739 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2023-46739 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-46739?

CVE-2023-46739 affects Linuxfoundation Cubefs. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-46739?

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

Does CVE-2023-46739 have an EU (EUVD) identifier?

Yes. CVE-2023-46739 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-0290.

When was CVE-2023-46739 published?

CVE-2023-46739 was published on 2024-01-03 and last updated on 2026-06-17.

CVE-2023-46739

CVE-2023-46739 is a medium-severity vulnerability in Linuxfoundation Cubefs with a CVSS 3.x base score of 6.5. 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-203.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (27th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-0290
Weakness: CWE-203
Affected product: Linuxfoundation Cubefs
Published: 2024-01-03
Last modified: 2026-06-17

Description

CubeFS is an open-source cloud-native file storage system. A vulnerability was found during in the CubeFS master component in versions prior to 3.3.1 that could allow an untrusted attacker to steal user passwords by carrying out a timing attack. The root case of the vulnerability was that CubeFS used raw string comparison of passwords. The vulnerable part of CubeFS was the UserService of the master component. The UserService gets instantiated when starting the server of the master component. The issue has been patched in v3.3.1. For impacted users, there is no other way to mitigate the issue besides upgrading.

Frequently asked questions

What is CVE-2023-46739?: CubeFS is an open-source cloud-native file storage system. A vulnerability was found during in the CubeFS master component in versions prior to 3.3.1 that could allow an untrusted attacker to steal user passwords by carrying out a timing attack. The root case of the vulnerability was that CubeFS used raw string comparison of passwords. The vulnerable part of CubeFS was the UserService of the master component. The UserService gets instantiated when starting the server of the master component. The issue has been patched in v3.3.1. For impacted users, there is no other way to mitigate the issue besides upgrading.
How severe is CVE-2023-46739?: CVE-2023-46739 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2023-46739 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-46739?: CVE-2023-46739 affects Linuxfoundation Cubefs. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-46739?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-46739 have an EU (EUVD) identifier?: Yes. CVE-2023-46739 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-0290.
When was CVE-2023-46739 published?: CVE-2023-46739 was published on 2024-01-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:linuxfoundation:cubefs:*:*:*:*:*:*:*:*

More vulnerabilities in Linuxfoundation Cubefs

CVE-2023-46740 — Medium (CVSS 6.5): CubeFS is an open-source cloud-native file storage system. Prior to version 3.3.1, CubeFS used an insecure random…
CVE-2023-46738 — Medium (CVSS 6.5): CubeFS is an open-source cloud-native file storage system. A security vulnerability was found in CubeFS HandlerNode in…
CVE-2023-30512 — Medium (CVSS 6.5): CubeFS through 3.2.1 allows Kubernetes cluster-level privilege escalation. This occurs because DaemonSet has…
CVE-2023-46742 — Medium (CVSS 4.8): CubeFS is an open-source cloud-native file storage system. CubeFS prior to version 3.3.1 was found to leak users secret…
CVE-2023-46741 — Medium (CVSS 4.8): CubeFS is an open-source cloud-native file storage system. A vulnerability was found in CubeFS prior to version 3.3.1…

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