# CVE-2026-4645

## Summary

- **CVE ID:** CVE-2026-4645
- **Severity:** HIGH
- **CVSS Score:** 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
- **CWE:** CWE-835
- **Published:** Mar 23, 2026
- **Last Modified:** Mar 30, 2026

## Description

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.

## Affected Products

No affected products listed.

## References

- [CNA](https://access.redhat.com/security/cve/CVE-2026-4645)
- [CNA](https://bugzilla.redhat.com/show_bug.cgi?id=2450214)
- [CNA](https://github.com/antchfx/xpath/commit/afd4762cc342af56345a3fb4002a59281fcab494)
- [CNA](https://github.com/antchfx/xpath/issues/121)
- [CNA](https://github.com/golang/vulndb/issues/4526)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.11%
- **EPSS Percentile:** 30.3

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._