CVE-2026-6879
LOW
INFO
Priority: 0.01
BB Relevance:
29/100
Published: 2026-07-28
Modified: 2026-10-24
First seen: 2026-10-29
Status: active
Attack Surface
Network
CVSS Vector Breakdown
AV:
Network
AC:
High
PR:
High
UI:
Passive
S:
X
AT:
Present
VC:
None
VI:
None
VA:
Low
Description
`Element.findall()` and fully-consumed `Element.iterfind()` exhibit `O(n^2)` time complexity when using XPath index predicates (e.g. `[1]`, `[last()]`, `[last()-N]`) on XML documents with many same-tag siblings. `Element.find()` is only affected when the first match is near the end of the sibling list, such as with `[last()]` or `[last()-N]`; `.//item[1]` short-circuits after the first match.