{"id":"CVE-2026-107291","state":"PUBLISHED","title":"Pydantic AI OpenTelemetry instrumentation: exception events on tool and agent run spans include content when `include_content=False`","description":"Pydantic AI is a Python agent framework for building applications and workflows with Generative AI. From 0.3.4 until 1.107.6 and 2.44.0, OpenTelemetry instrumentation configured with InstrumentationSettings(include_content=False) can still export sensitive agent content through exception.message and exception.stacktrace events, error status descriptions, and model_request_parameters containing instructions or the prompted_output_template. The exposed data is available to readers of the configured telemetry backend and can include tool feedback, provider error bodies, runtime instructions, and structured-output templates even though message attributes are redacted. This issue does not grant new access to agent data, and deployments that do not use include_content=False are not affected by the setting bypass. This issue is fixed in versions 1.107.6 and 2.44.0.","publishedAt":"2026-10-08T16:22:51.763Z","updatedAt":"2026-10-08T17:25:18.280Z","severity":{"score":2.3,"label":"Low","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["pydantic pydantic-ai","pydantic pydantic-ai-slim"],"affected":[{"vendor":"pydantic","product":"pydantic-ai","versions":[{"version":">= 0.3.4, < 1.107.6","status":"affected"},{"version":">= 2.0.0b1, < 2.44.0","status":"affected"}]},{"vendor":"pydantic","product":"pydantic-ai-slim","versions":[{"version":">= 0.3.4, < 1.107.6","status":"affected"},{"version":">= 2.0.0b1, < 2.44.0","status":"affected"}]}],"references":["https://github.com/pydantic/pydantic-ai/security/advisories/GHSA-4x9p-g9wm-8q7f","https://github.com/pydantic/pydantic-ai/pull/8403","https://github.com/pydantic/pydantic-ai/pull/8404","https://github.com/pydantic/pydantic-ai/pull/8408","https://github.com/pydantic/pydantic-ai/pull/8428","https://github.com/pydantic/pydantic-ai/pull/8429","https://github.com/pydantic/pydantic-ai/commit/4e013c51a50659aba2adf7853bfb22bb77f6a518","https://github.com/pydantic/pydantic-ai/commit/6b14c74cb281f899a2ae4fae5327111e33f60771","https://github.com/pydantic/pydantic-ai/commit/7ee27e38ab2e525ca60ff1a25d16413ff989fd79","https://github.com/pydantic/pydantic-ai/commit/963dec5f70d6f558997fc259356c0090cc5ea487","https://github.com/pydantic/pydantic-ai/commit/de4e61515327bd80a19cd8552001c30933e6acc3","https://github.com/pydantic/pydantic-ai/releases/tag/v1.107.6","https://github.com/pydantic/pydantic-ai/releases/tag/v2.44.0"],"weaknesses":["CWE-212","CWE-532"],"ingestedAt":"2026-10-29T20:10:23.711Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/107xxx/CVE-2026-107291.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-107291","state":"PUBLISHED","datePublished":"2026-10-08T16:22:51.763Z","dateUpdated":"2026-10-08T17:25:18.280Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-10-07T15:53:23.586Z"},"containers":{"cna":{"title":"Pydantic AI OpenTelemetry instrumentation: exception events on tool and agent run spans include content when `include_content=False`","descriptions":[{"lang":"en","value":"Pydantic AI is a Python agent framework for building applications and workflows with Generative AI. From 0.3.4 until 1.107.6 and 2.44.0, OpenTelemetry instrumentation configured with InstrumentationSettings(include_content=False) can still export sensitive agent content through exception.message and exception.stacktrace events, error status descriptions, and model_request_parameters containing instructions or the prompted_output_template. The exposed data is available to readers of the configured telemetry backend and can include tool feedback, provider error bodies, runtime instructions, and structured-output templates even though message attributes are redacted. This issue does not grant new access to agent data, and deployments that do not use include_content=False are not affected by the setting bypass. This issue is fixed in versions 1.107.6 and 2.44.0."}],"affected":[{"vendor":"pydantic","product":"pydantic-ai","versions":[{"version":">= 0.3.4, < 1.107.6","status":"affected"},{"version":">= 2.0.0b1, < 2.44.0","status":"affected"}]},{"vendor":"pydantic","product":"pydantic-ai-slim","versions":[{"version":">= 0.3.4, < 1.107.6","status":"affected"},{"version":">= 2.0.0b1, < 2.44.0","status":"affected"}]}],"references":[{"url":"https://github.com/pydantic/pydantic-ai/security/advisories/GHSA-4x9p-g9wm-8q7f","name":"https://github.com/pydantic/pydantic-ai/security/advisories/GHSA-4x9p-g9wm-8q7f","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/pydantic/pydantic-ai/pull/8403","name":"https://github.com/pydantic/pydantic-ai/pull/8403","tags":["x_refsource_MISC"]},{"url":"https://github.com/pydantic/pydantic-ai/pull/8404","name":"https://github.com/pydantic/pydantic-ai/pull/8404","tags":["x_refsource_MISC"]},{"url":"https://github.com/pydantic/pydantic-ai/pull/8408","name":"https://github.com/pydantic/pydantic-ai/pull/8408","tags":["x_refsource_MISC"]},{"url":"https://github.com/pydantic/pydantic-ai/pull/8428","name":"https://github.com/pydantic/pydantic-ai/pull/8428","tags":["x_refsource_MISC"]},{"url":"https://github.com/pydantic/pydantic-ai/pull/8429","name":"https://github.com/pydantic/pydantic-ai/pull/8429","tags":["x_refsource_MISC"]},{"url":"https://github.com/pydantic/pydantic-ai/commit/4e013c51a50659aba2adf7853bfb22bb77f6a518","name":"https://github.com/pydantic/pydantic-ai/commit/4e013c51a50659aba2adf7853bfb22bb77f6a518","tags":["x_refsource_MISC"]},{"url":"https://github.com/pydantic/pydantic-ai/commit/6b14c74cb281f899a2ae4fae5327111e33f60771","name":"https://github.com/pydantic/pydantic-ai/commit/6b14c74cb281f899a2ae4fae5327111e33f60771","tags":["x_refsource_MISC"]},{"url":"https://github.com/pydantic/pydantic-ai/commit/7ee27e38ab2e525ca60ff1a25d16413ff989fd79","name":"https://github.com/pydantic/pydantic-ai/commit/7ee27e38ab2e525ca60ff1a25d16413ff989fd79","tags":["x_refsource_MISC"]},{"url":"https://github.com/pydantic/pydantic-ai/commit/963dec5f70d6f558997fc259356c0090cc5ea487","name":"https://github.com/pydantic/pydantic-ai/commit/963dec5f70d6f558997fc259356c0090cc5ea487","tags":["x_refsource_MISC"]},{"url":"https://github.com/pydantic/pydantic-ai/commit/de4e61515327bd80a19cd8552001c30933e6acc3","name":"https://github.com/pydantic/pydantic-ai/commit/de4e61515327bd80a19cd8552001c30933e6acc3","tags":["x_refsource_MISC"]},{"url":"https://github.com/pydantic/pydantic-ai/releases/tag/v1.107.6","name":"https://github.com/pydantic/pydantic-ai/releases/tag/v1.107.6","tags":["x_refsource_MISC"]},{"url":"https://github.com/pydantic/pydantic-ai/releases/tag/v2.44.0","name":"https://github.com/pydantic/pydantic-ai/releases/tag/v2.44.0","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":2.3,"baseSeverity":"LOW","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-212","lang":"en","description":"CWE-212: Improper Removal of Sensitive Information Before Storage or Transfer","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-532","lang":"en","description":"CWE-532: Insertion of Sensitive Information into Log File","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-10-08T16:22:51.763Z"},"source":{"advisory":"GHSA-4x9p-g9wm-8q7f","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-08T17:25:09.227835Z","id":"CVE-2026-107291","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-08T17:25:18.280Z"}}]}}}