PT-2026-35933 · Unknown · Opentelemetry.Exporter.Zipkin

Kielek · Published 2026-04-28 · Updated 2026-05-07 · CVE-2026-41310

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Name of the Vulnerable Software and Affected Versions OpenTelemetry.Exporter.Zipkin versions prior to 1.15.3

Description The remote endpoint cache in the Zipkin exporter accepts unbounded key growth derived from span attributes. In high-cardinality scenarios—situations where there is a large number of unique values—a process using Zipkin export for client or producer spans may experience continuous memory growth under sustained unique remote endpoint values, which increases memory usage over time and degrades availability.

Recommendations Update to version 1.15.3.

Fix

Allocation of Resources Without Limits

Resource Exhaustion

Weakness Enumeration

CWE-770

CWE-400

Related Identifiers

CVE-2026-41310

GHSA-88HF-WF7H-7W4M

Affected Products

Opentelemetry.Exporter.Zipkin

References · 11

• https://github.com/open-telemetry/opentelemetry-dotnet/security/advisories/GHSA-88hf-wf7h-7w4m · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-41310 · Security Note
• https://osv.dev/vulnerability/GHSA-88hf-wf7h-7w4m · Vendor Advisory
• https://github.com/open-telemetry/opentelemetry-dotnet · Note
• https://github.com/open-telemetry/opentelemetry-dotnet/commit/c724f4bd6fd88e9a599af1668bf7af9487155b62 · Note
• https://github.com/open-telemetry/opentelemetry-dotnet/pull/7081 · Note
• https://t.me/CVEtracker/52923 · Telegram Post
• https://reddit.com/r/VulnMatter/comments/1sz0bq3/resumen_diario_de_vulnerabilidades_29042026 · Reddit Post
• https://twitter.com/CVEnew/status/2052400865026437391 · Twitter Post
• https://twitter.com/infoflowcloud/status/2052402192749847010 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2052238321506468180 · Twitter Post