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CVE-2023-4241 — Vulnerability in lol-html — CVE Details

HIGH

lol-html panics on certain HTML inputs

Published August 9, 2023Updated July 8, 2026Source: osv

Summary

### Impact lol-html can cause panics on certain HTML inputs. Anyone processing arbitrary 3rd party HTML with the library is affected. ### Patches The problem has been patched and released as v1.1.1 ### Workarounds No workarounds exist.

Advisory Timeline

  • First published August 9, 2023 (1160 days ago).
  • Last revised July 8, 2026 — 1064 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Cargo
Update lol-html to 1.1.1 or later
cargo update -p lol-html --precise 1.1.1

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: crates.io (1).

PackageEcosystemAffectedFixed In
lol-html
crates.io
All versions1.1.1

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

  • CWE-20
    Improper Input ValidationMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 7.5 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Frequently Asked Questions

What is CVE-2023-4241?
lol-html panics on certain HTML inputs This vulnerability has been assigned a severity rating of HIGH (CVSS score: 7.5/10).
How do I check if my project is affected by CVE-2023-4241?
CVE-2023-4241 affects lol-html. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2023-4241 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
7.5

High exploitability or significant impact. Prioritize remediation within days.

Also Known As

GHSA-c3x7-354f-4p2x

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