Bug 2456252 (CVE-2026-29181) - CVE-2026-29181 github.com/open-telemetry/opentelemetry-go: OpenTelemetry-Go: Denial of Service via crafted multi-value baggage headers
Summary: CVE-2026-29181 github.com/open-telemetry/opentelemetry-go: OpenTelemetry-Go: ...
Keywords:
Status: NEW
Alias: CVE-2026-29181
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-04-07 21:01 UTC by OSIDB Bzimport
Modified: 2026-05-28 19:45 UTC (History)
5 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-04-07 21:01:44 UTC 
OpenTelemetry-Go is the Go implementation of OpenTelemetry. From 1.36.0 to 1.40.0, multi-value baggage: header extraction parses each header field-value independently and aggregates members across values. This allows an attacker to amplify cpu and allocations by sending many baggage: header lines, even when each individual value is within the 8192-byte per-value parse limit. This vulnerability is fixed in 1.41.0.
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