How severe is CVE-2026-42865?

CVE-2026-42865 has a CVSS 3.x base score of 4.3, 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 none, and availability none.

Is CVE-2026-42865 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-42865?

CVE-2026-42865 affects Getinboxzero Inbox Zero. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-42865?

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

Does CVE-2026-42865 have an EU (EUVD) identifier?

Yes. CVE-2026-42865 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29169.

When was CVE-2026-42865 published?

CVE-2026-42865 was published on 2026-05-11 and last updated on 2026-06-17.

CVE-2026-42865

CVE-2026-42865 is a medium-severity vulnerability in Getinboxzero Inbox Zero 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-200.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v4: 2.3
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-29169
Weakness: CWE-200
Affected product: Getinboxzero Inbox Zero
Published: 2026-05-11
Last modified: 2026-06-17

Description

Inbox Zero is an AI personal assistant for email. Prior to 2.29.3, the cleaner email stream endpoint used a shared Redis subscription listener, which could deliver thread events for one authenticated account to another authenticated account using the cleaner feature at the same time. This vulnerability is fixed in 2.29.3.

Frequently asked questions

What is CVE-2026-42865?: Inbox Zero is an AI personal assistant for email. Prior to 2.29.3, the cleaner email stream endpoint used a shared Redis subscription listener, which could deliver thread events for one authenticated account to another authenticated account using the cleaner feature at the same time. This vulnerability is fixed in 2.29.3.
How severe is CVE-2026-42865?: CVE-2026-42865 has a CVSS 3.x base score of 4.3, 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 none, and availability none.
Is CVE-2026-42865 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-42865?: CVE-2026-42865 affects Getinboxzero Inbox Zero. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-42865?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-42865 have an EU (EUVD) identifier?: Yes. CVE-2026-42865 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29169.
When was CVE-2026-42865 published?: CVE-2026-42865 was published on 2026-05-11 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:getinboxzero:inbox_zero:*:*:*:*:*:*:*:*

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