CVE-2026-4833

LOW EPSS 2.1%
Published Mar 26, 20263mo ago · Modified Jun 17, 20262w ago
1.9 CVSS 4.0
Low
Find Similar
Published Mar 26, 2026 3mo ago
Last Modified Jun 17, 2026 2w ago

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."

CVSS Details

Base Score
1.9
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/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 Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
2.1% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 2

CWE-404
CWE-674

References 7

  • github.com https://github.com/Orc/discount/
  • github.com https://github.com/Orc/discount/issues/305
  • github.com https://github.com/Orc/discount/issues/305#issuecomment-4027546673
  • github.com https://github.com/user-attachments/files/25847391/crash00.md
  • vuldb.com https://vuldb.com/?ctiid.353138
  • vuldb.com https://vuldb.com/?id.353138
  • vuldb.com https://vuldb.com/?submit.775841

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.