{"answers":{"affected":"4 open source packages ship an affected version, including ddtrace.","exploited":"There is no known exploitation of CVE-2026-116588 in the wild and no public exploit code.","fix":"Upgrade ddtrace to a fixed version for your release line: 3.19.9 or 4.15.6.","what":"CVE-2026-116588 is a high-severity vulnerability in DataDog dd-trace-py, published on 26 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-116588 and fix it if it is affected.\n\nWhat it is: CVE-2026-116588 is a high-severity vulnerability in DataDog dd-trace-py, published on 26 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-116588 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- ddtrace (PyPI): affected from 1.5.0; fixed in 3.19.9\n- ddtrace (PyPI): affected from 1.5.0; fixed in 3.19.9\n- ddtrace (PyPI): affected from 4.0.0; fixed in 4.15.6\n- ddtrace (PyPI): affected from 4.0.0; fixed in 4.15.6\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-2026-116588/ (Markdown: https://insights.sbomify.com/CVE-2026-116588/index.md)","id":"CVE-2026-116588","markdown":"https://insights.sbomify.com/CVE-2026-116588/index.md","name":"CVE-2026-116588","record":{"aliases":["CLEANSTART-2026-OJ63833","GHSA-3633-r77q-h3v3","MINI-w4cm-jcv4-g374"],"analysis":null,"analysis_generated_by":null,"assigner":"GitHub_M","cpe":[],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-1333","name":"Inefficient Regular Expression Complexity"}],"description":"Datadog dd-trace-py is the Datadog Python APM client. From 1.5.0 until 3.19.9 and 4.15.6, the default query-string obfuscation regular expression can exhibit excessive backtracking while synchronously processing attacker-controlled URL query strings for HTTP span metadata. A remote attacker can cause prolonged CPU consumption, request latency, and service unavailability in affected HTTP tracing integrations that include query strings in URL span tags. The vulnerable processing is enabled by default for those integrations. This issue is fixed in versions 3.19.9 and 4.15.6.","ecosystems":["PyPI"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Datadog dd-trace-py: ReDOS in URL query string obfuscation","id":"CVE-2026-116588","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":null,"year":"2026"},"n_packages":4,"n_references":9,"next":{"headline":"Datadog dd-trace-py: IAST instrumentation can lead to application DOS","id":"CVE-2026-116589"},"packages":[{"ecosystem":"PyPI","fixed":["3.19.9"],"introduced":["1.5.0"],"last_affected":[],"package":"ddtrace","purl":null,"source":"GHSA-3633-r77q-h3v3"},{"ecosystem":"PyPI","fixed":["3.19.9"],"introduced":["1.5.0"],"last_affected":[],"package":"ddtrace","purl":"pkg:pypi/ddtrace","source":"GHSA-3633-r77q-h3v3"},{"ecosystem":"PyPI","fixed":["4.15.6"],"introduced":["4.0.0"],"last_affected":[],"package":"ddtrace","purl":null,"source":"GHSA-3633-r77q-h3v3"},{"ecosystem":"PyPI","fixed":["4.15.6"],"introduced":["4.0.0"],"last_affected":[],"package":"ddtrace","purl":"pkg:pypi/ddtrace","source":"GHSA-3633-r77q-h3v3"}],"prev":{"headline":"Go JOSE: DoS when parsing JWKs that contain RSA keys","id":"CVE-2026-116587"},"products":["dd-trace-py"],"published":"2026-10-26","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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-26","vendors":["DataDog"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-116588/"}