Vulnerability · Published Oct 13, 2026 · Assigned by VulDB
CVE-2026-109144wbond certvalidator Certificate Path Builder resource consumption
Medium 5.3
In plain English
A medium-severity uncontrolled resource consumption in certvalidator from wbond. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 28% of all known vulnerabilities).
Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.3%top 71.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:13 | python-certvalidator | no fix listed | DEBIAN-CVE-2026-109144 |
| Debian:14 | python-certvalidator | no fix listed | DEBIAN-CVE-2026-109144 |
| Ubuntu:24.04:LTS | python-certvalidator | no fix listed | UBUNTU-CVE-2026-109144 |
| Ubuntu:26.04:LTS | python-certvalidator | no fix listed | UBUNTU-CVE-2026-109144 |
| Ubuntu:26.10 | python-certvalidator | no fix listed | UBUNTU-CVE-2026-109144 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| wbond | certvalidator | 0.11.00.11.1 |
Weakness: CWE-400, CWE-404 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:X/RC:C
References
- VDB-416883 | wbond certvalidator Certificate Path Builder resource consumption vdb-entry
- VDB-416883 | CTI Indicators (IOB, IOC, TTP) signature, permissions-required
- CVE-2026-109144 | CVE Analysis and Report third-party-advisory
- Submit #978613 | wbond certvalidator 0.11.1 Denial of Service third-party-advisory
- https://github.com/wbond/certvalidator/issues/56 issue-tracking
- https://github.com/wbond/certvalidator/ product