proto: relax protobuf upper bound to <8.0#5100
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tanmaydarmorha wants to merge 1 commit intoopen-telemetry:mainfrom
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proto: relax protobuf upper bound to <8.0#5100tanmaydarmorha wants to merge 1 commit intoopen-telemetry:mainfrom
tanmaydarmorha wants to merge 1 commit intoopen-telemetry:mainfrom
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Unblocks adoption of protobuf 7.x, which contains the fix for CVE-2026-8994 (DoS in google.protobuf.json_format.ParseDict). Mirrors the prior bump in open-telemetry#4620 (<6.0 -> <7.0). Refs open-telemetry#5099
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xrmx
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Apr 15, 2026
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The CVE id is wrong, the severity for 2026-0994 as well and the fix has been backported to protobuf 5.29.6 and 6.33.4 as well.
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Description
Relax the
protobufupper bound inopentelemetry-protofrom<7.0to<8.0so downstream users ofopentelemetry-exporter-otlp(and its proto-grpc / proto-common / proto-http variants) can adoptprotobuf>=7.0.Protobuf 7.0 contains the fix for CVE-2026-8994 (CVSS 7.58) — a DoS in
google.protobuf.json_format.ParseDict()where a malicious payload can bypass input validation. The current<7.0cap blocks users from picking up that fix without pinning around OTel constraints.This mirrors the prior bump pattern in #4620 (
<6.0→<7.0).googleapis-common-protosalready allowsprotobuf <8.0.0, so it is not a blocker.Fixes #5099
Type of change
How Has This Been Tested?
protobuf==7.34.1and confirmedopentelemetry.proto.*_pb2modules import and serialize/deserialize cleanly (wire format is stable across 5.x → 7.x).protobuf==5.29.5(existingtest-requirements.oldest.txt) to confirm the lower bound still resolves.CI coverage (tox) exercises the proto package against the existing pinned protobuf in
test-requirements.txt; no generated code changes, so existing unit tests are unaffected.Does This PR Require a Contrib Repo Change?
This PR only relaxes a dependency specifier in
opentelemetry-proto/pyproject.toml. No shared config files, CODEOWNERS, scripts copied to contrib, or public interfaces change.Checklist: