GHSA-g94r-2vxg-569jPublished

OpenTelemetry dotnet: Excessive memory allocation when parsing OpenTelemetry propagation headers

cve-program · CVE-2026-40894

Published

opentelemetry-dotnet

Vendor product

Original vendor version evidence · not evaluated as a NuGet range

{
                    "vendor": "open-telemetry",
                    "product": "opentelemetry-dotnet",
                    "versions": [
                        {
                            "version": ">= 0.5.0-beta.2, < 1.15.3",
                            "status": "affected"
                        }
                    ]
                }

OpenTelemetry.Api

Vendor product

Original vendor version evidence · not evaluated as a NuGet range

{
                    "vendor": "open-telemetry",
                    "product": "OpenTelemetry.Api",
                    "versions": [
                        {
                            "version": ">= 0.5.0-beta.2, < 1.15.3",
                            "status": "affected"
                        }
                    ]
                }

OpenTelemetry.Extensions.Propagators

Vendor product

Original vendor version evidence · not evaluated as a NuGet range

{
                    "vendor": "open-telemetry",
                    "product": "OpenTelemetry.Extensions.Propagators",
                    "versions": [
                        {
                            "version": ">= 1.3.1, < 1.15.3",
                            "status": "affected"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON

euvd · EUVD-2026-25269

Published

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Apr 23, 2026, 6:03:28 PM

dateUpdated: Apr 23, 2026, 7:22:47 PM

No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.

Original source record · Cite this exact observation · Complete original publisher JSON

nvd · CVE-2026-40894

Published

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Analyzed

Weakness classifications: CWE-789

Original publisher date fields

published: 2026-04-23T19:17:28.810

lastModified: 2026-10-26T22:10:00.163

3 source CPE criteria · context only

cpe:2.3:a:opentelemetry:opentelemetry:*:*:*:*:*:.net:*:*
cpe:2.3:a:opentelemetry:opentelemetry.api:*:*:*:*:*:.net:*:*
cpe:2.3:a:opentelemetry:opentelemetry.extensions.propagators:*:*:*:*:*:*:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

Original source record · Cite this exact observation · Complete original publisher JSON

osv · GHSA-g94r-2vxg-569j

Published

OpenTelemetry.Api

NuGet

ECOSYSTEM · introduced 0.5.0-beta.2 → fixed 1.15.3

38 explicitly affected versions

1.0.0-rc2, 1.0.0-rc3, 1.0.0-rc4, 1.0.1, 1.1.0, 1.1.0-beta1, 1.1.0-beta2, 1.1.0-beta3, 1.1.0-beta4, 1.1.0-rc1, 1.10.0, 1.11.0, 1.11.1, 1.11.2, 1.12.0, 1.13.0, 1.13.1, 1.14.0, 1.15.0, 1.15.1, 1.15.2, 1.2.0, 1.2.0-rc1, 1.2.0-rc2, 1.2.0-rc3, 1.2.0-rc4, 1.2.0-rc5, 1.3.0, 1.3.1, 1.3.2, 1.4.0, 1.5.0, 1.5.1, 1.6.0, 1.7.0, 1.8.0, 1.8.1, 1.9.0

OpenTelemetry.Extensions.Propagators

NuGet

ECOSYSTEM · introduced 1.3.1 → fixed 1.15.3

21 explicitly affected versions

1.10.0, 1.11.0, 1.11.1, 1.11.2, 1.12.0, 1.13.0, 1.13.1, 1.14.0, 1.15.0, 1.15.1, 1.15.2, 1.3.1, 1.3.2, 1.4.0, 1.5.0, 1.5.1, 1.6.0, 1.7.0, 1.8.0, 1.8.1, 1.9.0

Original source record · Cite this exact observation · Complete original publisher JSON