Description
A weakness has been identified in Orc discount up to 3.0.1.2. This issue affects the function compile of the file markdown.c of the component Markdown Handler. This manipulation causes uncontrolled recursion. The attack is restricted to local execution. The exploit has been made available to the public and could be used for attacks. The project maintainer confirms: "[I]f you feed it an infinitely deep blockquote input it will crash. (...) [T]his is a duplicate of an old bug that I've been working on."
References (7)
Core 7
Core References
Vdb Entry, Technical Description vdb-entry
technical-description
VDB-353138 | Orc discount Markdown markdown.c compile recursion
https://vuldb.com/?id.353138
Signature, Permissions Required signature
permissions-required
VDB-353138 | CTI Indicators (IOB, IOC, IOA)
https://vuldb.com/?ctiid.353138
Third Party Advisory third-party-advisory
Submit #775841 | Orc discount 3.0.1.2 Memory Corruption
https://vuldb.com/?submit.775841
Issue Tracking issue-tracking
https://github.com/Orc/discount/issues/305
Issue Tracking issue-tracking
https://github.com/Orc/discount/issues/305#issuecomment-4027546673
Exploit exploit
https://github.com/user-attachments/files/25847391/crash00.md
Product product
https://github.com/Orc/discount/
Scores
CVSS v3
3.3
EPSS
0.0012
EPSS Percentile
2.1%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-404
CWE-674
Status
published
Products (3)
Orc/discount
3.0.1.0
Orc/discount
3.0.1.1
Orc/discount
3.0.1.2
Published
Mar 26, 2026
Tracked Since
Mar 26, 2026