cve.bz

CVE-2024-34078

6.1 mediumEPSS 0.6%

Medium (6.1). EPSS 0.6% chance of exploitation in the next 30 days. Fixed in html-sanitizer 2.4.2.

html-sanitizer is an allowlist-based HTML cleaner. If using `keep_typographic_whitespace=False` (which is the default), the sanitizer normalizes unicode to the NFKC form at the end. Some unicode characters normalize to chevrons; this allows specially crafted HTML to escape sanitization. The problem has been fixed in 2.4.2.

Severity

CVSS 3.1

6.1 medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS
0.6% chance of exploitation in the next 30 days; higher than 46% of CVEs (scores of 2026-10-31)
CWE
CWE-79
Published
Modified
Record from
the NVD, synced

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-wvhx-q427-fgh3PyPIhtml-sanitizer<2.4.22.4.2
PYSEC-2026-1455PyPIhtml-sanitizer<2.4.22.4.2

References

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