How severe is CVE-2026-34970?

CVE-2026-34970 has a CVSS 4.0 base score of 5.3, rated medium severity.

Is CVE-2026-34970 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-34970?

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

Does CVE-2026-34970 have an EU (EUVD) identifier?

Yes. CVE-2026-34970 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-31005.

When was CVE-2026-34970 published?

CVE-2026-34970 was published on 2026-05-20 and last updated on 2026-06-17.

CVE-2026-34970

CVE-2026-34970 is a medium-severity vulnerability with a CVSS 4.0 base score of 5.3. 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 4.0 base score 5.3)
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-31005
Weakness: CWE-200
Published: 2026-05-20
Last modified: 2026-06-17

Description

Mantis Bug Tracker (MantisBT) is an open source issue tracker. Versions 2.28.1 and prior allow a bugnote author to access the note's Revisions page after losing access to the parent private issue. This issue has been fixed in version 2.28.2.

Frequently asked questions

What is CVE-2026-34970?: Mantis Bug Tracker (MantisBT) is an open source issue tracker. Versions 2.28.1 and prior allow a bugnote author to access the note's Revisions page after losing access to the parent private issue. This issue has been fixed in version 2.28.2.
How severe is CVE-2026-34970?: CVE-2026-34970 has a CVSS 4.0 base score of 5.3, rated medium severity.
Is CVE-2026-34970 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-34970?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-34970 have an EU (EUVD) identifier?: Yes. CVE-2026-34970 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-31005.
When was CVE-2026-34970 published?: CVE-2026-34970 was published on 2026-05-20 and last updated on 2026-06-17.

References

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