CVE-2026-42348
high
CVSS v3
7.5
CVSS v4 NEW
—
VIR risk
7.5
Description
OpAMP client reads unbounded HTTP response bodies
Predictions
Exploit likelihood
83%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| NuGet | OpenTelemetry.OpAmp.Client | <0.2.0-alpha.1 | 0.2.0-alpha.1 |
| NUGET | OpenTelemetry.OpAmp.Client | < 0.2.0-alpha.1 | 0.2.0-alpha.1 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| opentelemetry | opentelemetry.opamp.client | {"endExcluding":"0.2.0"} | 0.2.0 |
References
- https://github.com/open-telemetry/opentelemetry-dotnet-contrib/pull/4116
- https://github.com/open-telemetry/opentelemetry-dotnet-contrib/security/advisories/GHSA-w2jh-77fq-7gp8
- https://nvd.nist.gov/vuln/detail/CVE-2026-42348
- https://github.com/open-telemetry/opentelemetry-dotnet-contrib/commit/bf1fad4fa298ff451cda0efb0ee9c7a7eb46212a
- https://github.com/open-telemetry/opentelemetry-dotnet-contrib
- https://github.com/advisories/GHSA-w2jh-77fq-7gp8
CWEs
CWE-789
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.