AIKIDO-2026-722825
spomky-labs/pki-framework is vulnerable to Uncontrolled Resource Consumption
75
High Risk
This Affects:
spomky-labs/pki-frameworkTL;DR
CertificationPathBuilder::assertPathCount() increments the path counter only when a produced path is appended, so recursive sub-calls that never reach a trust anchor process the whole subtree without hitting the MAX_PATHS bound. Mutually issuing intermediate certificates that chain to nothing enumerate every ordered sequence up to the maximum path length, and a few kilobytes of those certificates cost minutes of CPU during path building. The fix counts explored paths so the bound fires.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range and you build certification paths from peer supplied intermediate certificates.
Background info
spomky-labs/pki-framework is vulnerable to Uncontrolled Resource Consumption in versions 1.0.0 - 1.6.1.
How to fix this
Upgrade the spomky-labs/pki-framework library to the patch version.
Are You Affected?
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