CVE-2026-4645

EUVD-2026-14434
A flaw was found in the `github.com/antchfx/xpath` component. A remote attacker could exploit this vulnerability by submitting crafted Boolean XPath expressions that evaluate to true. This can cause an infinite loop in the `logicalQuery.Select` function, leading to 100% CPU utilization and a Denial of Service (DoS) condition for the affected system.
Infinite Loop
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
redhatCNA
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Debian logo
Debian Releases
Debian Product
Codename
golang-github-antchfx-xpath
bookworm
vulnerable
bullseye
vulnerable
forky
1.3.6-1
fixed
sid
1.3.6-1
fixed
trixie
vulnerable
Common Weakness Enumeration
References
https://access.redhat.com/security/cve/CVE-2026-4645
https://bugzilla.redhat.com/show_bug.cgi?id=2450214
https://github.com/antchfx/xpath/commit/afd4762cc342af56345a3fb4002a59281fcab494
https://github.com/antchfx/xpath/issues/121
https://github.com/golang/vulndb/issues/4526