CVE-2026-4833

Orc discount Markdown markdown.c compile recursion

LOW
3.3
CVSS Score
Published: March 26, 2026 at 01:02 AM UTC
Updated: June 17, 2026 at 10:57 AM UTC
1 product affected across 1 vendorDiscount

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Severity
LOW3.3
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

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."

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (7)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/?id.353138
SignaturePermissions Required
Source: cverecord
https://vuldb.com/?ctiid.353138
Third Party Advisory
Source: cverecord
https://vuldb.com/?submit.775841
Issue Tracking
Source: cverecord
https://github.com/Orc/discount/issues/305
Product
Source: cverecord
https://github.com/Orc/discount/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

3.3LOWVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-674CWE-404

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