PT-2022-11601 · Unknown+1 · Xml-Conduit+1

Jgm · CVE-2021-4249 · Published 2022-12-18 · Updated 2026-06-22

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions xml-conduit versions prior to 1.9.1.0

Description A vulnerability was found in the DOCTYPE Entity Expansion Handler component of xml-conduit, affecting an unknown function of the file xml-conduit/src/Text/XML/Stream/Parse.hs. The manipulation leads to an infinite loop and can be launched remotely.

Recommendations For versions prior to 1.9.1.0, upgrade to version 1.9.1.0 to address this issue. As a temporary workaround, consider restricting the use of the DOCTYPE Entity Expansion Handler component until the upgrade is applied.

Fix

Improper Resource Release

Weakness Enumeration

CWE-404

Related Identifiers

CVE-2021-4249

HSEC-2023-0004

OPENSUSE-SU-2026:11086-1

Affected Products

Debian

Xml-Conduit

References · 19

• https://github.com/snoyberg/xml/pull/161 · Patch
• https://github.com/snoyberg/xml/commit/4be1021791dcdee8b164d239433a2043dc0939ea · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-4249 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-4249 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-4249 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-4249 · Vendor Advisory
• https://hackage.haskell.org/package/xml-conduit-1.9.1.0 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2021-4249 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-4249 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2026:11086-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-4249 · Vendor Advisory
• https://osv.dev/vulnerability/HSEC-2023-0004 · Vendor Advisory
• https://github.com/haskell/security-advisories · Note
• https://raw.githubusercontent.com/haskell/security-advisories/refs/heads/generated/osv-export · Note
• https://vuldb.com/?id.216204 · Note