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CVE Vulnerability Details :
CVE-2026-41511
PUBLISHED
More InfoOfficial Page
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
View Known Exploited Vulnerability (KEV) details
Published At-08 May, 2026 | 18:52
Updated At-11 May, 2026 | 18:45
Rejected At-
▼CVE Numbering Authority (CNA)
OpenMcdf has an Infinite loop DoS via crafted CFB directory cycle

OpenMcdf is a fully .NET / C# library to manipulate Compound File Binary File Format files, also known as Structured Storage. Prior to version 3.1.3, OpenMcdf does not detect cycles in the directory entry red-black tree of a Compound File Binary (CFB) document. A crafted CFB file with a cycle in the LeftSiblingID / RightSiblingID chain causes Storage.EnumerateEntries() and Storage.OpenStream() to loop indefinitely, consuming the calling thread with no possibility of recovery via try/catch. This issue has been patched in version 3.1.3.

Affected Products
Vendor
ironfede
Product
openmcdf
Versions
Affected
  • < 3.1.3
Problem Types
TypeCWE IDDescription
CWECWE-835CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')
Type: CWE
CWE ID: CWE-835
Description: CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')
Metrics
VersionBase scoreBase severityVector
3.16.2MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Version: 3.1
Base score: 6.2
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/openmcdf/openmcdf/security/advisories/GHSA-jxpf-xq2m-q525
x_refsource_CONFIRM
https://github.com/openmcdf/openmcdf/commit/24f445a557fc4f46461cf6d02d296cce16c293a0
x_refsource_MISC
https://github.com/openmcdf/openmcdf/releases/tag/v3.1.3
x_refsource_MISC
Hyperlink: https://github.com/openmcdf/openmcdf/security/advisories/GHSA-jxpf-xq2m-q525
Resource:
x_refsource_CONFIRM
Hyperlink: https://github.com/openmcdf/openmcdf/commit/24f445a557fc4f46461cf6d02d296cce16c293a0
Resource:
x_refsource_MISC
Hyperlink: https://github.com/openmcdf/openmcdf/releases/tag/v3.1.3
Resource:
x_refsource_MISC
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/openmcdf/openmcdf/security/advisories/GHSA-jxpf-xq2m-q525
exploit
Hyperlink: https://github.com/openmcdf/openmcdf/security/advisories/GHSA-jxpf-xq2m-q525
Resource:
exploit
Details not found