CVE catalog

CVE-2026-4833

Severity: Low · CVSS 1.9
Published: Mar 26, 2026, 2:16:08 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.12% · Oct 25, 2026

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."

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	discount	sid	`2.2.7-2.1`	vulnerable
Debian	discount	forky	`2.2.7-2.1`	vulnerable
Debian	discount	trixie	`2.2.7-2.1`	vulnerable
Debian	discount	bookworm	`2.2.7-2`	vulnerable
Cpe	discount	Not reported	Not reported	vulnerable
Opensuse	discount	tumbleweed	`3.0.2.0-1.1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	discount	source	sid	`(unfixed)`	not yet assigned	Not reported	[1133003]
Debian	discount	source	forky	`(unfixed)`	not yet assigned	Not reported	[1133003]
Debian	discount	source	trixie	`(unfixed)`	not yet assigned	Not reported	[1133003]
Debian	discount	source	bookworm	`(unfixed)`	not yet assigned	Not reported	[1133003]
Opensuse	discount	rpm	tumbleweed	`3.0.2.0-1.1`	Not reported	OPENSUSE-SU-2026:11786-1	Not reported

[Debian bug #1133003]

Notes

[trixie] discount: Minor issue [bookworm] discount: Minor issue

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[discount]Affected
Details (2)
- 2.2.7-2 · amd64 · bookworm
  Affected
  nvd · discount · debian · bookworm; nvd · discount · debian · 12
- 2.2.7-2 · arm64 · bookworm
  Affected
  nvd · discount · debian · bookworm; nvd · discount · debian · 12
[libmarkdown2]Affected
Source package: [discount]
Details (2)
- 2.2.7-2 · amd64 · bookworm
  Affected
  nvd · discount · debian · bookworm; nvd · discount · debian · 12
- 2.2.7-2 · arm64 · bookworm
  Affected
  nvd · discount · debian · bookworm; nvd · discount · debian · 12
[libmarkdown2-dev]Affected
Source package: [discount]
Details (2)
- 2.2.7-2 · amd64 · bookworm
  Affected
  nvd · discount · debian · bookworm; nvd · discount · debian · 12
- 2.2.7-2 · arm64 · bookworm
  Affected
  nvd · discount · debian · bookworm; nvd · discount · debian · 12

[Debian 13 (Trixie)]

[discount]Affected
Details (2)
- 2.2.7-2.1 · amd64 · trixie
  Affected
  nvd · discount · debian · 13
- 2.2.7-2.1 · arm64 · trixie
  Affected
  nvd · discount · debian · 13
[libmarkdown2]Affected
Source package: [discount]
Details (2)
- 2.2.7-2.1 · amd64 · trixie
  Affected
  nvd · discount · debian · 13
- 2.2.7-2.1 · arm64 · trixie
  Affected
  nvd · discount · debian · 13
[libmarkdown2-dev]Affected
Source package: [discount]
Details (2)
- 2.2.7-2.1 · amd64 · trixie
  Affected
  nvd · discount · debian · 13
- 2.2.7-2.1 · arm64 · trixie
  Affected
  nvd · discount · debian · 13

[openSUSE Tumbleweed]

[discount]Affected
Source package: [discount]
Details (1)
- 3.0.1.2-2.4 · x86_64 · tumbleweed
  Affected · Fixed: 3.0.2.0-1.1
  nvd · discount · opensuse · tumbleweed
[libmarkdown3]Unknown
Source package: [discount]
Details (1)
- 3.0.1.2-2.4 · x86_64 · tumbleweed
  Unknown · Fixed: 3.0.2.0-1.1
  Version impact unknown
  nvd · discount · opensuse · tumbleweed
[libmarkdown-devel]Unknown
Source package: [discount]
Details (1)
- 3.0.1.2-2.4 · x86_64 · tumbleweed
  Unknown · Fixed: 3.0.2.0-1.1
  Version impact unknown
  nvd · discount · opensuse · tumbleweed

Observed: Oct 23, 2026, 10:37:12 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]