Medium (5.3). EPSS 5.1% chance of exploitation in the next 30 days. Fixed in nokogiri 1.10.5.
In numbers.c in libxslt 1.1.33, a type holding grouping characters of an xsl:number instruction was too narrow and an invalid character/length combination could be passed to xsltNumberFormatDecimal, leading to a read of uninitialized stack data.
Severity
CVSS 3.1
5.3 medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS
5.1% chance of exploitation in the next 30 days; higher than 92% of CVEs (scores of 2026-10-31)