How severe is CVE-2026-33284?

CVE-2026-33284 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2026-33284 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-33284?

CVE-2026-33284 affects Globaleaks. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-33284?

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

Does CVE-2026-33284 have an EU (EUVD) identifier?

Yes. CVE-2026-33284 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-16614.

When was CVE-2026-33284 published?

CVE-2026-33284 was published on 2026-03-27 and last updated on 2026-06-17.

CVE-2026-33284

CVE-2026-33284 is a medium-severity vulnerability in Globaleaks with a CVSS 3.x base score of 4.3. 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-20.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v4: 1.2
EPSS exploit prediction: 0% (9th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-16614
Weakness: CWE-20
Affected product: Globaleaks
Published: 2026-03-27
Last modified: 2026-06-17

Description

GlobaLeaks is free and open-source whistleblowing software. Prior to version 5.0.89, the /api/support endpoint of GlobaLeaks performs minimal validation on user-submitted support requests. As a result, arbitrary URLs can be included in support emails sent to administrators. Version 5.0.89 patches the issue.

Frequently asked questions

What is CVE-2026-33284?: GlobaLeaks is free and open-source whistleblowing software. Prior to version 5.0.89, the /api/support endpoint of GlobaLeaks performs minimal validation on user-submitted support requests. As a result, arbitrary URLs can be included in support emails sent to administrators. Version 5.0.89 patches the issue.
How severe is CVE-2026-33284?: CVE-2026-33284 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2026-33284 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-33284?: CVE-2026-33284 affects Globaleaks. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-33284?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-33284 have an EU (EUVD) identifier?: Yes. CVE-2026-33284 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-16614.
When was CVE-2026-33284 published?: CVE-2026-33284 was published on 2026-03-27 and last updated on 2026-06-17.

References

https://github.com/globaleaks/globaleaks-whistleblowing-software/security/advisories/GHSA-84wr-q36q-wqhv

Affected products (1)

cpe:2.3:a:globaleaks:globaleaks:*:*:*:*:*:*:*:*

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