Resource Exhaustion Affecting python-opentelemetry package, versions *


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.49% (42nd percentile)

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  • Snyk IDSNYK-DEBIAN14-PYTHONOPENTELEMETRY-21664585
  • published24 Oct 2026
  • disclosed22 Oct 2026

Introduced: 22 Oct 2026

NewCVE-2026-114603  (opens in a new tab)
CWE-400  (opens in a new tab)
CWE-1333  (opens in a new tab)

How to fix?

There is no fixed version for Debian:14 python-opentelemetry.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python-opentelemetry package and not the python-opentelemetry package as distributed by Debian. See How to fix? for Debian:14 relevant fixed versions and status.

OpenTelemetry Python provides the Python API and SDK for OpenTelemetry. Prior to 1.45.1, the opentelemetry-api function TraceState.from_header in opentelemetry/trace/span.py, reached through TraceContextTextMapPropagator.extract, parses inbound W3C tracestate headers with an unbounded optional-whitespace regular expression. A malformed header containing a long run of spaces or tabs without a following comma causes quadratic backtracking before the member-count limit is applied. Services using the default W3C Trace Context propagator can therefore spend excessive CPU time on one unauthenticated request when the HTTP server, parser, gateway, or custom carrier accepts a sufficiently large header. The processing can occupy a synchronous worker or delay unrelated requests on the same asynchronous event loop. The impact is limited to availability and does not expose or modify telemetry data or allow code execution. This issue is fixed in version 1.45.1.

CVSS Base Scores

version 3.1