How severe is CVE-2025-44594?

CVE-2025-44594 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2025-44594 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-2025-44594?

CVE-2025-44594 affects Halo. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-44594?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2025-44594 have an EU (EUVD) identifier?

Yes. CVE-2025-44594 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-27469.

When was CVE-2025-44594 published?

CVE-2025-44594 was published on 2025-09-09 and last updated on 2026-06-17.

CVE-2025-44594

CVE-2025-44594 is a critical-severity vulnerability in Halo with a CVSS 3.x base score of 9.1. 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-918.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
EPSS exploit prediction: 0% (27th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-27469
Weakness: CWE-918
Affected product: Halo
Published: 2025-09-09
Last modified: 2026-06-17

Description

halo v2.20.17 and before is vulnerable to server-side request forgery (SSRF) in /apis/uc.api.storage.halo.run/v1alpha1/attachments/-/upload-from-url.

Frequently asked questions

What is CVE-2025-44594?: halo v2.20.17 and before is vulnerable to server-side request forgery (SSRF) in /apis/uc.api.storage.halo.run/v1alpha1/attachments/-/upload-from-url.
How severe is CVE-2025-44594?: CVE-2025-44594 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2025-44594 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-2025-44594?: CVE-2025-44594 affects Halo. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-44594?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-44594 have an EU (EUVD) identifier?: Yes. CVE-2025-44594 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-27469.
When was CVE-2025-44594 published?: CVE-2025-44594 was published on 2025-09-09 and last updated on 2026-06-17.

References

https://meadow-horn-b94.notion.site/halo-ssrf-14c42bd5b11880c09936df07f58f5bed?pvs=74

Affected products (1)

cpe:2.3:a:halo:halo:*:*:*:*:*:*:*:*

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