{"id":"CVE-2026-112006","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-112006","generatedAt":"2026-10-28T00:53:49.575Z","title":"OpenTelemetry opentelemetry-exporter-otlp-proto-http 1.5.0 before 1.45.0 contains an improper certificate validation vulnerability that disables TLS verification when OTEL_EXPORTER_OTLP_CERTIFICATE variables are empty strings.","description":"OpenTelemetry opentelemetry-exporter-otlp-proto-http 1.5.0 before 1.45.0 contains an improper certificate validation vulnerability that disables TLS verification when OTEL_EXPORTER_OTLP_CERTIFICATE variables are empty strings. Man-in-the-middle attackers can impersonate the collector to read or alter exported traces, metrics, and logs, including authentication headers from OTEL_EXPORTER_OTLP_HEADERS.","published":"2026-10-18T12:17:13.000Z","lastModified":"2026-10-19T21:14:14.000Z","status":"Deferred","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":8.3,"severity":"HIGH","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-295"],"affected":[],"epss":{"score":0.00215,"percentile":0.11802,"date":"2026-10-26","history":[{"date":"2026-10-19","score":0.00215,"percentile":0.11202}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.21%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-18T12:17:13.000Z","detail":{"score":"8.3","severity":"HIGH","publishedAt":"2026-10-18T12:17:12.927Z"},"summary":"New CVE, high severity (CVSS 8.3)."}],"references":[{"url":"https://github.com/open-telemetry/opentelemetry-python/blob/v1.44.0/exporter/opentelemetry-exporter-otlp-proto-http/src/opentelemetry/exporter/otlp/proto/http/trace_exporter/__init__.py#L170-L185","source":"disclosure@vulncheck.com"},{"url":"https://github.com/open-telemetry/opentelemetry-python/blob/v1.44.0/exporter/opentelemetry-exporter-otlp-proto-http/src/opentelemetry/exporter/otlp/proto/http/trace_exporter/__init__.py#L93-L96","source":"disclosure@vulncheck.com"},{"url":"https://github.com/open-telemetry/opentelemetry-python/commit/89cc68b9ea7e15969b4f042d63397bdc74a3d60e","source":"disclosure@vulncheck.com"},{"url":"https://github.com/open-telemetry/opentelemetry-python/releases/tag/v1.45.0","source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/opentelemetry-opentelemetry-exporter-otlp-proto-http-1.5.0-before-1.45.0-improper-certificate-validation","source":"disclosure@vulncheck.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-112006","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}