OpenTelemetry Python: Unbounded tracestate parsing in opentelemetry-api
影響パッケージ
| 種類 | パッケージ | 影響を受ける版 | 直った版 |
|---|---|---|---|
| open-telemetry | opentelemetry-python | — | — |
| pip | opentelemetry-api |
1.45.1 未満 |
1.45.1 |
| PyPI | opentelemetry-api |
1.45.1 未満 |
1.45.1 |
ディストリビューション別の修正状況
各ディストリビューションが公開している、この CVE の修正パッケージ
- Debian DEBIAN-CVE-2026-114603 python-opentelemetry
- Ubuntu UBUNTU-CVE-2026-114603 python-opentelemetry
原文の説明 取得元が公開している説明をそのまま載せています (多くは英語)。
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.
出典: CVE.org (CVE Program・cvelistV5) NVD GitHub Advisory
参照URL
- advisory github.com
- advisory nvd.nist.gov
- package github.com
- REDHAT Red Hat
- web github.com
- web security-advisories@github.com
- web security-advisories@github.com
- web security-advisories@github.com
- web security-advisories@github.com
- web github.com