1sealsemantic last-mile verification

Research / Finding

multi-value `baggage` header extraction causes excessive allocations (remote dos amplification)

F-OTELGO-001

Public snapshot: 26 Sep 2026. Status, releases and attribution belong to each source below; none is inferred from another record.

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Recorded evidence

7.5high
CVE-2026-29181CVEopen-telemetry/opentelemetry-go

multi-value `baggage` header extraction causes excessive allocations (remote dos amplification)

Upstream fixed versions: go.opentelemetry.io/otel/baggage: v1.41.0; go.opentelemetry.io/otel/propagation: v1.41.0

patched
details
Finding IDs
F-OTELGO-001
CVE
CVE-2026-29181
GHSA
GHSA-mh2q-q3fh-2475
Status
patched
Fixed in
go.opentelemetry.io/otel/baggage: v1.41.0; go.opentelemetry.io/otel/propagation: v1.41.0
Note
GHSA-mh2q-q3fh-2475
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVE registry state
PUBLISHED
CVE state checked
Upstream title
multi-value `baggage` header extraction causes excessive allocations (remote dos amplification)
Upstream CWE
CWE-400
Upstream publication
Upstream updated
Metadata fetched
Upstream fixed versions
go.opentelemetry.io/otel/baggage: v1.41.0; go.opentelemetry.io/otel/propagation: v1.41.0
Upstream affected ranges
go.opentelemetry.io/otel/baggage: >= v1.36.0, <= 1.40.0; go.opentelemetry.io/otel/propagation: >= v1.36.0, <= 1.40.0
Upstream @1seal credit
@1seal: reporter (accepted)

F-OTELGO-001: Resource limits. Baggage handling permits disproportionate resource consumption. Reviewed 24 Sep 2026. Mechanism assessed by 1seal.

Mechanism source for F-OTELGO-001

Security area (1seal assessment): Availability. Repeated baggage header values amplify parsing work and allocations beyond the per-value limit. Reviewed 21 Sep 2026.

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This identifier groups recorded evidence; it is not an additional CVE, independent-vulnerability count or guarantee of vendor confirmation. Fixed code, released versions, attribution and independent discovery are distinct claims. Absent metadata means not recorded, not disproved. Counting rules.