Upstream information

CVE-2026-4833 at MITRE

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."

SUSE information

Overall state of this security issue: Resolved

This issue is currently not rated by SUSE as it is not affecting the SUSE Enterprise products.

CVSS v2 Scores
CVSS detail CNA (VulDB)
Base Score 1.7
Vector AV:L/AC:L/Au:S/C:N/I:N/A:P
Access Vector Local
Access Complexity Low
Authentication Single
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
CVSS v3 Scores
CVSS detail CNA (VulDB)
Base Score 3.3
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact Low
CVSSv3 Version 3.1
CVSS v4 Scores
CVSS detail CNA (VulDB)
Base Score 1.9
Vector 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
Attack Requirements None
Privileges Required Low
User Interaction None
Vulnerable System Confidentiality Impact None
Vulnerable System Integrity Impact None
Vulnerable System Availability Impact Low
Subsequent System Confidentiality Impact None
Subsequent System Integrity Impact None
Subsequent System Availability Impact None
CVSSv4 Version 4.0
No SUSE Bugzilla entries cross referenced.

No SUSE Security Announcements cross referenced.

List of released packages

Product(s) Fixed package version(s) References
openSUSE Tumbleweed
  • discount >= 3.0.2.0-1.1
  • libmarkdown-devel >= 3.0.2.0-1.1
  • libmarkdown3 >= 3.0.2.0-1.1
 Patchnames:
openSUSE-Tumbleweed-2026-11786

SUSE Timeline for this CVE

CVE page created: Wed Sep 16 12:50:33 2026
CVE page last modified: Wed Sep 16 12:50:33 2026