{"answers":{"affected":"2 open source packages ship an affected version, including opentelemetry-api.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-114603 exists.","fix":"Upgrade opentelemetry-api to 1.45.1 or later.","what":"CVE-2026-114603 is a medium-severity vulnerability in open-telemetry opentelemetry-python, published on 22 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-114603 and fix it if it is affected.\n\nWhat it is: CVE-2026-114603 is a medium-severity vulnerability in open-telemetry opentelemetry-python, published on 22 Oct 2026. \nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-114603 exists.\n\nAffected packages and fixed versions:\n- opentelemetry-api (PyPI): affected all versions; fixed in 1.45.1\n- opentelemetry-api (PyPI): affected all versions; fixed in 1.45.1\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-114603/ (Markdown: https://insights.sbomify.com/CVE-2026-114603/index.md)","id":"CVE-2026-114603","markdown":"https://insights.sbomify.com/CVE-2026-114603/index.md","name":"CVE-2026-114603","record":{"aliases":["DEBIAN-CVE-2026-114603","ECHO-235b-c8bb-c828","GHSA-xcq7-p3pf-p88h","MINI-jj2p-p345-6cmp","MINI-m8gq-62hm-gfh7","UBUNTU-CVE-2026-114603"],"analysis":null,"analysis_generated_by":null,"assigner":"GitHub_M","cpe":[],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"cwes":[{"id":"CWE-400","name":"Uncontrolled Resource Consumption"},{"id":"CWE-1333","name":"Inefficient Regular Expression Complexity"}],"description":"OpenTelemetry Python provides the Python API and SDK for OpenTelemetry. Prior to 1.45.1, the opentelemetry-api function TraceState.from_header in opentelemetry/trace/span.py, reached through TraceContextTextMapPropagator.extract, parses inbound W3C tracestate headers with an unbounded optional-whitespace regular expression. A malformed header containing a long run of spaces or tabs without a following comma causes quadratic backtracking before the member-count limit is applied. Services using the default W3C Trace Context propagator can therefore spend excessive CPU time on one unauthenticated request when the HTTP server, parser, gateway, or custom carrier accepts a sufficiently large header. The processing can occupy a synchronous worker or delay unrelated requests on the same asynchronous event loop. The impact is limited to availability and does not expose or modify telemetry data or allow code execution. This issue is fixed in version 1.45.1.","ecosystems":["PyPI"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"OpenTelemetry Python: Unbounded tracestate parsing in opentelemetry-api","id":"CVE-2026-114603","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":null,"year":"2026"},"n_packages":2,"n_references":5,"next":{"headline":"dnspython dns.name.from_wire_parser() excessive CPU use","id":"CVE-2026-114605"},"packages":[{"ecosystem":"PyPI","fixed":["1.45.1"],"introduced":["0"],"last_affected":[],"package":"opentelemetry-api","purl":null,"source":"GHSA-xcq7-p3pf-p88h"},{"ecosystem":"PyPI","fixed":["1.45.1"],"introduced":["0"],"last_affected":[],"package":"opentelemetry-api","purl":"pkg:pypi/opentelemetry-api","source":"GHSA-xcq7-p3pf-p88h"}],"prev":{"headline":"Access of resource using incompatible type ('type confusion') in EPICS Base","id":"CVE-2026-114598"},"products":["opentelemetry-python"],"published":"2026-10-22","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-29","vendors":["open-telemetry"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-114603/"}