{"answers":{"affected":"3 open source packages ship an affected version, including go.opentelemetry.io/obi. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-45676 exists.","fix":"Upgrade go.opentelemetry.io/obi to 0.9.0 or later.","what":"CVE-2026-45676 is a medium-severity denial of service vulnerability in open-telemetry opentelemetry-ebpf-instrumentation, published on 2 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-45676 and fix it if it is affected.\n\nWhat it is: CVE-2026-45676 is a medium-severity denial of service vulnerability in open-telemetry opentelemetry-ebpf-instrumentation, published on 2 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-45676 exists.\n\nAffected packages and fixed versions:\n- go.opentelemetry.io/obi (Go): affected all versions; fixed in 0.9.0\n- go.opentelemetry.io/obi (Go): affected all versions; fixed in 0.9.0\n- go.opentelemetry.io/obi (Go): affected all versions; fixed in 0.9.0\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-2026-45676/ (Markdown: https://insights.sbomify.com/CVE-2026-45676/index.md)","id":"CVE-2026-45676","markdown":"https://insights.sbomify.com/CVE-2026-45676/index.md","name":"CVE-2026-45676","record":{"aliases":["GHSA-wp73-mwgf-4jq9","GO-2026-5714"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"OpenTelemetry eBPF instrumentation","requires_auth":"low_privilege","summary":"A crafted local ELF file can crash the OpenTelemetry eBPF instrumentation agent due to unsafe parsing, causing a denial of service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"ebpf_instrumentation","vendor":"opentelemetry"}],"cvss":{"score":5.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-248","name":"Uncaught Exception"},{"id":"CWE-20","name":"Improper Input Validation"}],"description":"OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. Prior to version 0.9.0, OBI's replacement ELF parser trusts section offsets, counts, and string offsets from the executable file. A crafted local ELF can make OBI dereference invalid section pointers or slice past string tables, causing the agent to panic while determining the process language. This issue has been patched in version 0.9.0.","ecosystems":["Go"],"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 eBPF Instrumentation: Unsafe fastelf parsing allows malformed ELF to crash agent","id":"CVE-2026-45676","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":3,"n_references":2,"next":{"headline":"Rocket.Chat: Lack of SAML Signature Check During Logout Could Lead To DoS","id":"CVE-2026-45677"},"packages":[{"ecosystem":"Go","fixed":["0.9.0"],"introduced":["0"],"last_affected":[],"package":"go.opentelemetry.io/obi","purl":null,"source":"GHSA-wp73-mwgf-4jq9"},{"ecosystem":"Go","fixed":["0.9.0"],"introduced":["0"],"last_affected":[],"package":"go.opentelemetry.io/obi","purl":"pkg:golang/go.opentelemetry.io/obi","source":"GHSA-wp73-mwgf-4jq9"},{"ecosystem":"Go","fixed":["0.9.0"],"introduced":["0"],"last_affected":[],"package":"go.opentelemetry.io/obi","purl":"pkg:golang/go.opentelemetry.io/obi","source":"GO-2026-5714"}],"prev":{"headline":"Open WebUI: LDAP and OAuth First-User Race Condition Allows Multiple Admin Accounts","id":"CVE-2026-45675"},"products":["opentelemetry-ebpf-instrumentation"],"published":"2026-06-02","related":[{"cvss_score":7.5,"headline":"OpenTelemetry eBPF Instrumentation: Postgres BIND parsing can panic on malformed payloads","id":"CVE-2026-45678","kev_date_added":null,"published":"2026-06-02"},{"cvss_score":7.5,"headline":"OpenTelemetry eBPF Instrumentation: MongoDB parser panics on malformed wire messages","id":"CVE-2026-45685","kev_date_added":null,"published":"2026-06-02"},{"cvss_score":7.5,"headline":"OpenTelemetry eBPF Instrumentation: Memcached payload length overflow can crash OBI","id":"CVE-2026-45686","kev_date_added":null,"published":"2026-06-02"},{"cvss_score":6.5,"headline":"OpenTelemetry eBPF Instrumentation: Redis error text is exported in span status messages","id":"CVE-2026-45679","kev_date_added":null,"published":"2026-06-02"},{"cvss_score":5.9,"headline":"OpenTelemetry eBPF Instrumentation: Unbounded BPF internal metrics replay can exhaust CPU","id":"CVE-2026-45680","kev_date_added":null,"published":"2026-06-02"},{"cvss_score":5.9,"headline":"OpenTelemetry eBPF Instrumentation: CPU-mismatch fallback uses 256-byte buffer with 8KB size","id":"CVE-2026-45681","kev_date_added":null,"published":"2026-06-02"}],"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":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-06-02","vendors":["open-telemetry"]},"summary":"A crafted local ELF file can crash the OpenTelemetry eBPF instrumentation agent due to unsafe parsing, causing a denial of service.","url":"https://insights.sbomify.com/CVE-2026-45676/"}