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 products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| wbond | certvalidator | 0.11.0, 0.11.1 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | python-certvalidator | No fix yet | — |
| Debian 13 | python-certvalidator | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | python-certvalidator | No fix yet | — |
| Ubuntu 26.04 LTS | python-certvalidator | No fix yet | — |
| Ubuntu 24.04 LTS | python-certvalidator | No fix yet | — |
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