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MantisBT CVE-2026-34970

MEDIUM
Information Exposure (CWE-200)
2026-05-11 https://github.com/mantisbt/mantisbt GHSA-crmx-4p49-46m2
Information Disclosure
5.3
CVSS 4.0 · GitHub Advisory
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Severity by source

GitHub Advisory PRIMARY
5.3 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

2
CVSS changed
May 20, 2026 - 00:22 NVD
5.3 (MEDIUM)
CVE Published
May 11, 2026 - 19:33 nvd
MEDIUM

DescriptionGitHub Advisory

MantisBT allows a bugnote author to access the note's Revisions page after losing access to the parent private issue.

Impact

Disclosure of the private Issue's Id and Summary. The bugnote full revision body remains secure.

Patches

  • 71df1f67e05b2050cd4bd87839e6cc13747cf03f

Workarounds

None

Credits

Thanks to Vishal Shukla for discovering and responsibly reporting the issue.

Analysis

MantisBT allows a bugnote author to access the note's Revisions page after losing access to the parent private issue.

Impact

Disclosure of the private Issue's Id and Summary. The bugnote full revision body remains secure.

Patches

  • 71df1f67e05b2050cd4bd87839e6cc13747cf03f

Workarounds

None

Credits

Thanks to Vishal Shukla for discovering and responsibly reporting the issue.

Same weakness CWE-200 – Information Exposure

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Same technique Information Disclosure

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CVE-2026-34970 vulnerability details – vuln.today
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