Incorrect Calculation of Multi-Byte String Length Affecting scorecard package, versions <5.6.0-r5


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.47% (42nd percentile)

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  • Snyk IDSNYK-WOLFILATEST-SCORECARD-22549899
  • published15 Nov 2026
  • disclosed13 Nov 2026

Introduced: 13 Nov 2026

NewCVE-2026-128085  (opens in a new tab)
CWE-135  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade Wolfi scorecard to version 5.6.0-r5 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream scorecard package and not the scorecard package as distributed by Wolfi. See How to fix? for Wolfi relevant fixed versions and status.

OpenTelemetry-Go is the Go implementation of OpenTelemetry. From SDK version 1.33.0, SDK log version 0.9.0, and trace version 1.35.0 until version 1.47.0, the AttributeValueLengthLimit and WithAttributeValueLengthLimit truncation paths in sdk/internal/attrnorm, sdk/log/internal/attrnorm, and trace/auto.go do not count valid U+FFFD replacement characters. This is a distinct incomplete-fix defect in the replacement truncation code introduced by the remediation for CVE-2026-81869. Values composed of or dominated by those characters can therefore exceed the configured character and memory bound in span, log-record, and auto-instrumentation trace attributes. Attacker-controlled telemetry attributes can increase retained memory and pipeline pressure, while confidentiality and integrity are not affected. This issue is fixed in version 1.47.0.

CVSS Base Scores

version 3.1