CVE-2026-34970
📛 CVE Title
MantisBT Bugnote Revision Page Leaks Private Issue Metadata After Issue Access Is Revoked
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.
Overview
- State
- PUBLISHED
- Assigner (CNA)
- GitHub_M
- CVSS severity
- MEDIUM
- CVSS score
- 5.3 / 10
- CVSS vector
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- Effective score
- 5.3 / 10 MEDIUM source: CNA overview
- CWE(s)
-
CWE-200 - Reserved
- 2026-03-31
- Published
- 2026-05-19 23:17 UTC
- Last updated
- 2026-05-20 13:04 UTC
- Source
- https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/34xxx/CVE-2026-34970.json
- Linked Threat
- CVE-2026-34970 — CVE-2026-34970
NVD triage scoring NVD CVE 2.0
Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.
- NVD published
- 2026-05-20 00:16:35 UTC
- NVD last modified
- 2026-05-20 14:06:33 UTC
- EPSS score
- 0.0001 (probability of exploitation in next 30 days)
- EPSS percentile
- 2.29% vs all CVEs — higher = more likely to be exploited, as of 2026-05-24
NVD / KEV / EPSS data refreshed 2026-05-25 00:41 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.
European Union Vulnerability Database ENISA EUVD
ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.
- EUVD ID
-
EUVD-2026-31005 - Assigner
- GitHub_M
- Published
- May 19, 2026, 11:17:59 PM
- Updated
- May 20, 2026, 1:04:48 PM
- EUVD base score (CVSS 4.0)
-
5.3 / 10
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 - EUVD-reported EPSS
- 0.0200
- Vendors
- mantisbt
- Products
-
mantisbt (< 2.28.2)
- Aliases
-
GHSA-crmx-4p49-46m2
ENISA 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.
Affected products (1)
| Vendor | Product | Versions | Platforms |
|---|---|---|---|
| mantisbt | mantisbt |
< 2.28.2 (affected)
|
— |
Vendor references (3)
References embedded in the original CVE record by the assigning CNA.
- https://github.com/mantisbt/mantisbt/security/advisories/GHSA-crmx-4p49-46m2 x_refsource_CONFIRM
- https://github.com/mantisbt/mantisbt/commit/71df1f67e05b2050cd4bd87839e6cc13747cf03f x_refsource_MISC
- https://mantisbt.org/bugs/view.php?id=36978 x_refsource_MISC
Web references (6)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.
- https://github.com/mantisbt/mantisbt/commit/71df1f67e05b2050cd4bd87839e6cc13747cf03f tenable:github.com
- https://github.com/mantisbt/mantisbt/security/advisories/GHSA-crmx-4p49-46m2 tenable:github.com
- https://mantisbt.org/bugs/view.php?id=36978 tenable:mantisbt.org
- https://nvd.nist.gov/vuln/detail/CVE-2026-34970 tenable:nvd.nist.gov
- https://www.cve.org/CVERecord?id=CVE-2026-34970 tenable:www.cve.org
- https://www.first.org/epss/ tenable:www.first.org
NVD-tagged references (4)
Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.
- https://github.com/mantisbt/mantisbt/commit/71df1f67e05b2050cd4bd87839e6cc13747cf03f security-advisories@github.com
- https://github.com/mantisbt/mantisbt/security/advisories/GHSA-crmx-4p49-46m2 security-advisories@github.com
- https://mantisbt.org/bugs/view.php?id=36978 security-advisories@github.com
- https://mantisbt.org/bugs/view.php?id=36978 134c704f-9b21-4f2e-91b3-4a467353bcc0
Remediations (19)
Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.
-
web:app.opencve.io
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. Show more Published: 2026 -05-19 Score:5.3 Medium EPSS:n/a KEV: Impact:n/a Action:n/a Analysis
2026-05-23 22:16 UTC -
web:blog.qualys.com
With Qualys Policy Audit's out-of-the-box mitigation or Compensatory Controls, which reduce the risk of a vulnerability being exploited because the remediation ( fix / patch ) cannot be done immediately, these security controls are not recommended by any industry standards, such as CIS and DISA-STIG.
2026-05-23 22:16 UTC -
web:cyberscoop.com
Threats Microsoft addresses 137 vulnerabilities in May's Patch Tuesday, including 13 rated critical The high volume of vulnerabilities reflects a growing trend researchers have been anticipating as artificial intelligence models are deployed to find previously uncovered defects in code.
2026-05-23 22:16 UTC -
web:krebsonsecurity.com
Microsoft expects that exploitation is more likely. May's Patch Tuesday is a welcome respite from April, which saw Microsoft fix a near-record 167 security flaws.
2026-05-23 22:16 UTC -
web:portal.msrc.microsoft.com
The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.
2026-05-23 22:16 UTC -
web:redmondmag.com
Microsoft April 2026 Patch Tuesday fixed 163 CVEs , marking its second-largest security update. Three zero-day vulnerabilities impacted SharePoint, Chromium-based Edge workflows and Microsoft Defender.
2026-05-23 22:16 UTC -
web:www.bleepingcomputer.com
Today is Microsoft's April 2026 Patch Tuesday with security updates for 167 flaws, including 2 zero-day vulnerabilities.
2026-05-23 22:16 UTC -
web:www.crowdstrike.com
Microsoft's April 2026 Patch Tuesday addresses 164 CVEs , featuring 8 Critical vulnerabilities, one exploited zero-day, and one disclosed zero-day.
2026-05-23 22:16 UTC -
web:www.microsoft.com
These Knowledge Base articles accompany all security updates and advisories, and include caveats or known issues with security updates. Additionally, support engineers document common concerns from customers in these KB articles. These Knowledge Base articles are published the Security Update Guide with each release on Patch Tuesday.
2026-05-23 22:16 UTC -
web:zecurit.com
Get the complete breakdown of Microsoft's May 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .
2026-05-23 22:16 UTC -
web:4sysops.com
Starting in April 2026 , Windows updates will change the default Kerberos ticket issuance behavior to AES-SHA1 for accounts without explicit encryption settings, while RC4 can still be used where explicitly enabled. This change, driven by CVE - 2026 -20833, affects every Windows Server environment where service accounts or devices still rely on RC4. Any service account, NAS device, or legacy ...
2026-05-26 02:58 UTC -
web:community.ui.com
Published: May 21, 2026 Updated: May 22, 2026 Version: 1.1 Revision: 1.1 Summary 1 of 5 A malicious actor with access to the network and high privileges could exploit an Improper Input Validation vulnerability found in UniFi OS devices to execute a Command Injection. Affected Products: UniFi OS Server (Version 5.0.6 and earlier) Mitigation : Update your UniFi OS Server to Version 5.0.8 or later ...
2026-05-26 02:58 UTC -
web:cyberpress.org
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added two actively exploited Microsoft Defender vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog, issuing an urgent remediation directive for federal agencies with a due date of June 3, 2026 .
2026-05-26 02:58 UTC -
web:github.com
A new and improved community patch for BO3. . Contribute to shiversoftdev/t7patch development by creating an account on GitHub.
2026-05-26 02:58 UTC -
web:nvd.nist.gov
An official website of the United States government Here's how you know
2026-05-26 02:58 UTC -
web:support.microsoft.com
This update for Windows 11, version 25H2 and 24H2 (KB5084597) incudes security improvements. To learn more about differences between security updates, optional non-security preview updates, out-of-band (OOB) updates, and continuous innovation, see Windows monthly updates explained. For information on Windows update terminology, see the different types of Windows software updates. To view the ...
2026-05-26 02:58 UTC -
web:www.cve.org
At cve .org, we provide the authoritative reference method for publicly known information-security vulnerabilities and exposures
2026-05-26 02:58 UTC -
web:www.oracle.com
This Critical Patch Update contains 481 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at April 2026 Critical Patch Update: Executive Summary and Analysis.
2026-05-26 02:58 UTC -
web:www.windowslatest.com
Windows 11 April 2026 update adds Narrator Copilot support, faster Settings, File Explorer fixes, and key security improvements.
2026-05-26 02:58 UTC
AI Forensic Analysis
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Raw JSON
The full cvelistV5 record. Download as CVE-2026-34970.json.
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