How severe is CVE-2026-58428?

CVE-2026-58428 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2026-58428 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-58428?

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

When was CVE-2026-58428 published?

CVE-2026-58428 was published on 2026-08-13 and last updated on 2026-08-14.

CVE-2026-58428

CVE-2026-58428 is a medium-severity vulnerability 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-424.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (26th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-424
Published: 2026-08-13
Last modified: 2026-08-14

Description

Release attachment extension allowlist bypass via web release edit form (variant of CVE-2025-68939)

Frequently asked questions

What is CVE-2026-58428?: Release attachment extension allowlist bypass via web release edit form (variant of CVE-2025-68939)
How severe is CVE-2026-58428?: CVE-2026-58428 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2026-58428 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-58428?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-58428 published?: CVE-2026-58428 was published on 2026-08-13 and last updated on 2026-08-14.

References

Other CWE-424 vulnerabilities

CVE-2025-48827 — Critical (CVSS 10.0): vBulletin 5.0.0 through 5.7.5 and 6.0.0 through 6.0.3 allows unauthenticated users to invoke protected API controllers'…
CVE-2026-66756 — Critical (CVSS 9.8): Improper Protection of Alternate Path vulnerability in Apache Tika. This issue affects Apache Tika: from 4.0.0-alpha-1…
CVE-2025-48828 — Critical (CVSS 9.0): Certain vBulletin versions might allow attackers to execute arbitrary PHP code by abusing Template Conditionals in the…
CVE-2024-58136 — Critical (CVSS 9.0): Yii 2 before 2.0.52 mishandles the attaching of behavior that is defined by an __class array key, a CVE-2024-4990…
CVE-2023-52952 — High (CVSS 8.5): A vulnerability has been identified in HiMed Cockpit 12 pro (J31032-K2017-H259) (All versions >= V11.5.1 < V11.6.2),…
CVE-2024-3459 — High (CVSS 8.4): KioWare for Windows (versions all through 8.34) allows to escape the environment by downloading PDF files, which then…

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