CVE-2026-116694
Severity not reportedOpenTelemetry Python provides the Python API and SDK for OpenTelemetry.
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.
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/open-telemetry/opentelemetry-python/commit/65c4eeb87cd3815dc795d3b5485e... security-advisories@github.com
- https://github.com/open-telemetry/opentelemetry-python/pull/5556 security-advisories@github.com
- https://github.com/open-telemetry/opentelemetry-python/releases/tag/v1.45.0 security-advisories@github.com
- https://github.com/open-telemetry/opentelemetry-python/security/advisories/GHSA-f5m9-jfrj-... security-advisories@github.com