{"cve":"CVE-2024-42368","nvd":{"published":"2024-08-13T20:15:08.447","modified":"2026-06-17T07:49:20.383","status":"Deferred","description":"OpenTelemetry, also known as OTel, is a vendor-neutral open source Observability framework for instrumenting, generating, collecting, and exporting telemetry data such as traces, metrics, and logs. The bearertokenauth extension's server authenticator performs a simple, non-constant time string comparison of the received & configured bearer tokens. This impacts anyone using the `bearertokenauth` server authenticator. Malicious clients with network access to the collector may perform a timing attack against a collector with this authenticator to guess the configured token, by iteratively sending tokens and comparing the response time. This would allow an attacker to introduce fabricated or bad data into the collector's telemetry pipeline. The observable timing vulnerability was fixed by using constant-time comparison in  0.107.0","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","score":6.5},"cwes":["CWE-208"],"references":["https://github.com/open-telemetry/opentelemetry-collector-contrib/commit/c9bd3eff0bb357d9c812a0d8defd3b09db95699a","https://github.com/open-telemetry/opentelemetry-collector-contrib/pull/34516","https://github.com/open-telemetry/opentelemetry-collector-contrib/security/advisories/GHSA-rfxf-mf63-cpqv"],"products":[],"source":"nvd","synced_at":"2026-10-19T21:53:51.317825789+00:00"},"epss":{"cve":"CVE-2024-42368","score":0.0062,"percentile":0.4973,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-rfxf-mf63-cpqv","url":"https://osv.dev/vulnerability/GHSA-rfxf-mf63-cpqv","summary":"open-telemetry has an Observable Timing Discrepancy","modified":"2026-09-10T03:50:18.166929917Z","packages":[{"ecosystem":"Go","name":"github.com/open-telemetry/opentelemetry-collector-contrib/extension/bearertokenauthextension","purl":"pkg:golang/github.com/open-telemetry/opentelemetry-collector-contrib/extension/bearertokenauthextension","ranges":[">=0.80.0 <0.107.0"],"fixed":["0.107.0"]}]},{"id":"GO-2024-3066","url":"https://osv.dev/vulnerability/GO-2024-3066","summary":"open-telemetry has an Observable Timing Discrepancy in github.com/open-telemetry/opentelemetry-collector-contrib/extension/bearertokenauthextension","modified":"2026-02-04T04:02:58.707998Z","packages":[{"ecosystem":"Go","name":"github.com/open-telemetry/opentelemetry-collector-contrib/extension/bearertokenauthextension","purl":"pkg:golang/github.com/open-telemetry/opentelemetry-collector-contrib/extension/bearertokenauthextension","ranges":[">=0.80.0 <0.107.0"],"fixed":["0.107.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}