🛡️ CVE-2021-4249 — xml-conduit

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

xml-conduit unbounded entity expansion

# xml-conduit unbounded entity expansion

A vulnerability was found in *xml-conduit*. It has been classified

as problematic. Affected is an unknown function of the file

xml-conduit/src/Text/XML/Stream/Parse.hs of the component DOCTYPE

Entity Expansion Handler. The manipulation leads to infinite loop.

It is possible to launch the attack remotely. Upgrading to version

1.9.1.0 is able to address this issue. The name of the patch is

4be1021791dcdee8b164d239433a2043dc0939ea. It is recommended to

upgrade the affected component.

Affected software

CVE-2021-4249 is recorded against 1 package.

  • xml-conduit (from 0.5.0 up to 1.9.1.0)

Timeline and source

Published on 14 November 2025 and last revised on 30 May 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from OSV.

References

github.com (Fix)
github.com (Fix)

CVE-2021-4249 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2025-11-14
Updated 2026-08-12
Modified 2026-05-30

Affected Packages

Software From version Fixed in
xml-conduit 0.5.0 1.9.1.0

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