CVE-2026-41178

Description

OpenTelemetry-Go is the Go implementation of OpenTelemetry. Versions 1.41.0 and 1.43.0 removed raw-length rejection and it causes `Parse` to process arbitrarily large/invalid baggage headers and log errors, enabling DoS via oversized inputs. Versions 1.42.0 and 1.44.0 fix the issue.

PUBLISHED Reserved 2026-04-17 | Published 2026-06-04 | Updated 2026-06-04 | Assigner GitHub_M

Problem types

CWE-789: Memory Allocation with Excessive Size Value

Product status

References

github.com/...try-go/security/advisories/GHSA-5wrp-cwcj-q835 exploit

github.com/...try-go/security/advisories/GHSA-5wrp-cwcj-q835

github.com/open-telemetry/opentelemetry-go/pull/7880

cve.org (CVE-2026-41178)

nvd.nist.gov (CVE-2026-41178)

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