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TI-2023-03927 Aliases CVE-2023-4241GHSA-c3x7-354f-4p2x

lol-html panics on certain HTML inputs

Priority MEDIUM 40CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.

Summary

lol-html can cause panics on certain HTML inputs. Anyone processing arbitrary 3rd party HTML with the library is affected.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00687 52nd percentileScored 2026-11-07
Fix Fixed lol-html (Cloudflare): 1.1.1lol-html (crates.io): 1.1.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Cloudflarelol-htmlbefore 1.1.11.1.1Patch availableCNA
—lol-html (crates.io)before 1.1.11.1.1Patch availableGHSA-c3x7-354f-4p2x
  • lol-html VendorCloudflare Affected before 1.1.1 Fixed in 1.1.1 Patch available CNA
  • lol-html (crates.io) Vendor— Affected before 1.1.1 Fixed in 1.1.1 Patch available GHSA-c3x7-354f-4p2x

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:cloudflare:lol-html:*:*:*:*:*:rust:*:*before 1.1.1VulnerableCloudflare
  • cpe:2.3:a:cloudflare:lol-html:*:*:*:*:*:rust:*:* Versions before 1.1.1 Vulnerable ·Cloudflare

Remediation

  • Fix · CNA lol-html (Cloudflare) Fixed in 1.1.1
  • Fix · GHSA-c3x7-354f-4p2x lol-html (crates.io) Fixed in 1.1.1 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-4241
  2. 2026-10-03 Alias added: GHSA-c3x7-354f-4p2x

References

Advisory 2

Other 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences