How severe is CVE-2026-39901?

CVE-2026-39901 has a CVSS 3.x base score of 5.7, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2026-39901 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-39901?

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

Does CVE-2026-39901 have an EU (EUVD) identifier?

Yes. CVE-2026-39901 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-20641.

When was CVE-2026-39901 published?

CVE-2026-39901 was published on 2026-04-08 and last updated on 2026-06-17.

CVE-2026-39901

CVE-2026-39901 is a medium-severity vulnerability with a CVSS 3.x base score of 5.7. 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-285.

Key facts

Severity: Medium (CVSS 3.x base score 5.7)
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-20641
Weakness: CWE-285
Published: 2026-04-08
Last modified: 2026-06-17

Description

monetr is a budgeting application focused on planning for recurring expenses. Prior to 1.12.3, a transaction integrity flaw allows an authenticated tenant user to soft-delete synced non-manual transactions through the transaction update endpoint, despite the application explicitly blocking deletion of those transactions via the normal DELETE path. This bypass undermines the intended protection for imported transaction records and allows protected transactions to be hidden from normal views. This vulnerability is fixed in 1.12.3.

Frequently asked questions

What is CVE-2026-39901?: monetr is a budgeting application focused on planning for recurring expenses. Prior to 1.12.3, a transaction integrity flaw allows an authenticated tenant user to soft-delete synced non-manual transactions through the transaction update endpoint, despite the application explicitly blocking deletion of those transactions via the normal DELETE path. This bypass undermines the intended protection for imported transaction records and allows protected transactions to be hidden from normal views. This vulnerability is fixed in 1.12.3.
How severe is CVE-2026-39901?: CVE-2026-39901 has a CVSS 3.x base score of 5.7, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2026-39901 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-39901?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-39901 have an EU (EUVD) identifier?: Yes. CVE-2026-39901 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-20641.
When was CVE-2026-39901 published?: CVE-2026-39901 was published on 2026-04-08 and last updated on 2026-06-17.

References

https://github.com/monetr/monetr/security/advisories/GHSA-hqxq-hwqf-wg83

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