CVE-2026-57304

CVE-2026-57304 is a medium-severity vulnerability in Jenkins Assembla with a CVSS 3.x base score of 5.4. 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

Description

A missing permission check in Jenkins Assembla Plugin 1.4 and earlier allows attackers with Overall/Read permission to connect to an attacker-specified URL using an attacker-specified username and password.

Frequently asked questions

What is CVE-2026-57304?
A missing permission check in Jenkins Assembla Plugin 1.4 and earlier allows attackers with Overall/Read permission to connect to an attacker-specified URL using an attacker-specified username and password.
How severe is CVE-2026-57304?
CVE-2026-57304 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-57304 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-57304?
CVE-2026-57304 affects Jenkins Assembla. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-57304?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-57304 have an EU (EUVD) identifier?
Yes. CVE-2026-57304 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-38785.
When was CVE-2026-57304 published?
CVE-2026-57304 was published on 2026-06-24 and last updated on 2026-06-25.

References

Affected products (1)

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