Security context

What an agent needs to avoid regressing past fixes and find the next vuln in this repo.

elastic/elastic-transport-python

              main @ 9e32f47
            

Fixes

CVEs

MEDIUM

Peak severity

0.0%

Coverage

Highlights

Cryptographic Issues: 1 prior fix. Scrutinize any change in this area.

elastic_transport._node._base: most-fixed (1 issue). Treat as high-risk during review.

0 high-severity fixes in this history; regressions here are high-impact.

Recurring patterns

The bug types that recur here, drawn from past fixes, not open vulnerabilities.

Cryptographic Issues: Inadequate enforcement of the configured minimum TLS version could allow protocol downgrades, undermining connection confidentiality. Developers should ensure the default context initialization explicitly locks the minimum version rather than relying on flexible negotiations that accept deprecated protocols.

Weak Cryptographic Protocol: Allowing connection negotiations to fall back to legacy TLS versions (like TLS 1.0 or 1.1) exposes client-cluster communications to known cryptographic attacks. Enforcing TLSv1.2 as the absolute minimum baseline across all nodes mitigates this protocol weakness.

Denial of Service: Unbounded exponential backoff calculations for offline nodes can trigger an unhandled OverflowError when tracking consecutive failures. This crash disrupts the pool's node-tracking thread, leading to localized denial of service or client instability.