How severe is CVE-2026-66377?

CVE-2026-66377 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-66377 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-66377?

CVE-2026-66377 affects Jfrog Artifactory. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-66377?

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

When was CVE-2026-66377 published?

CVE-2026-66377 was published on 2026-08-12 and last updated on 2026-09-02.

CVE-2026-66377

CVE-2026-66377 is a medium-severity vulnerability in Jfrog Artifactory with a CVSS 3.x base score of 5.3. 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-862.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (28th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-862
Affected product: Jfrog Artifactory
Published: 2026-08-12
Last modified: 2026-09-02

Description

An unauthenticated user may access restricted repository information under specific conditions.

Frequently asked questions

What is CVE-2026-66377?: An unauthenticated user may access restricted repository information under specific conditions.
How severe is CVE-2026-66377?: CVE-2026-66377 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-66377 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-66377?: CVE-2026-66377 affects Jfrog Artifactory. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-66377?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-66377 published?: CVE-2026-66377 was published on 2026-08-12 and last updated on 2026-09-02.

References

Affected products (1)

cpe:2.3:a:jfrog:artifactory:*:*:*:*:*:*:*:*

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