CVE-2026-116694
Description
OpenTelemetry Python provides the Python API and SDK for OpenTelemetry. Prior to 1.45.0, JaegerPropagator.extract() in opentelemetry-propagator-jaeger processes inbound uberctx-* baggage values without entry, per-entry byte, or total-byte limits. Services that enable the optional Jaeger propagator can perform unnecessary CPU work and short-lived heap allocations when an untrusted carrier supplies numerous or oversized values, contributing to denial of service when transport-level limits do not constrain the input. Common default Python HTTP server limits reduce the practical impact, while custom getters, non-HTTP transports, or raised header limits increase exposure. This issue is fixed in version 1.45.0.
How to fix
- opentelemetry-propagator-jaeger1.45.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| opentelemetry-propagator-jaegerPyPI | v < 1.45.0 | 1.45.0 |
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