How severe is CVE-2026-34744?

CVE-2026-34744 has a CVSS 4.0 base score of 5.3, rated medium severity.

Is CVE-2026-34744 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-34744?

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

Does CVE-2026-34744 have an EU (EUVD) identifier?

Yes. CVE-2026-34744 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-31004.

When was CVE-2026-34744 published?

CVE-2026-34744 was published on 2026-05-19 and last updated on 2026-06-17.

CVE-2026-34744

CVE-2026-34744 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% (28th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-31004
Weakness: CWE-200
Published: 2026-05-19
Last modified: 2026-06-17

Description

Mantis Bug Tracker (MantisBT) is an open source issue tracker. Versions 2.28.1 and prior permit a user to list and download their own attachments from an Issue created by another user even after it becomes private, bypassing read access revocation. The loss of confidentiality caused by this vulnerability is minimal, considering that only attachments previously uploaded by the user themselves remain accessible. This issue has been fixed in version 2.82.2.

Frequently asked questions

What is CVE-2026-34744?: Mantis Bug Tracker (MantisBT) is an open source issue tracker. Versions 2.28.1 and prior permit a user to list and download their own attachments from an Issue created by another user even after it becomes private, bypassing read access revocation. The loss of confidentiality caused by this vulnerability is minimal, considering that only attachments previously uploaded by the user themselves remain accessible. This issue has been fixed in version 2.82.2.
How severe is CVE-2026-34744?: CVE-2026-34744 has a CVSS 4.0 base score of 5.3, rated medium severity.
Is CVE-2026-34744 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-34744?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-34744 have an EU (EUVD) identifier?: Yes. CVE-2026-34744 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-31004.
When was CVE-2026-34744 published?: CVE-2026-34744 was published on 2026-05-19 and last updated on 2026-06-17.

References

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