{"answers":{"affected":"3 open source packages ship an affected version, including github.com/ipld/go-ipld-prime. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-35480 in the wild and no public exploit code.","fix":"Upgrade github.com/ipld/go-ipld-prime to 0.22.0 or later.","what":"CVE-2026-35480 is a medium-severity denial of service vulnerability in go-ipld-prime, published on 7 Apr 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-2026-35480 and fix it if it is affected.\n\nWhat it is: CVE-2026-35480 is a medium-severity denial of service vulnerability in go-ipld-prime, published on 7 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-35480 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/ipld/go-ipld-prime (Go): affected all versions; fixed in 0.22.0\n- github.com/ipld/go-ipld-prime (Go): affected all versions; fixed in 0.22.0\n- github.com/ipld/go-ipld-prime (Go): affected all versions; fixed in 0.22.0\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-2026-35480/ (Markdown: https://insights.sbomify.com/CVE-2026-35480/index.md)","id":"CVE-2026-35480","markdown":"https://insights.sbomify.com/CVE-2026-35480/index.md","name":"CVE-2026-35480","record":{"aliases":["GHSA-378j-3jfj-8r9f","GO-2026-5073","MINI-hf9w-8rw7-4rvf","MINI-wqwj-cpw9-4q92"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Go IPLD library","requires_auth":"none","summary":"An attacker can cause excessive memory allocation and denial of service by sending crafted CBOR payloads to the go-ipld-prime decoder.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"go-ipld-prime","vendor":"protocol"}],"cvss":{"score":6.2,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling"}],"description":"go-ipld-prime is an implementation of the InterPlanetary Linked Data (IPLD) spec interfaces, a batteries-included codec implementations of IPLD for CBOR and JSON, and tooling for basic operations on IPLD objects. Prior to 0.22.0, the DAG-CBOR decoder uses collection sizes declared in CBOR headers as Go preallocation hints for maps and lists. The decoder does not cap these size hints or account for their cost in its allocation budget, allowing small payloads to cause excessive memory allocation. This vulnerability is fixed in 0.22.0.","ecosystems":["Go"],"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":"go-ipld-prime's DAG-CBOR decoder unbounded memory allocation from CBOR headers","id":"CVE-2026-35480","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":3,"n_references":1,"next":{"headline":"Further research determined the issue does not satisfy the assignment rules.","id":"CVE-2026-35481"},"packages":[{"ecosystem":"Go","fixed":["0.22.0"],"introduced":["0"],"last_affected":[],"package":"github.com/ipld/go-ipld-prime","purl":null,"source":"GHSA-378j-3jfj-8r9f"},{"ecosystem":"Go","fixed":["0.22.0"],"introduced":["0"],"last_affected":[],"package":"github.com/ipld/go-ipld-prime","purl":"pkg:golang/github.com/ipld/go-ipld-prime","source":"GHSA-378j-3jfj-8r9f"},{"ecosystem":"Go","fixed":["0.22.0"],"introduced":["0"],"last_affected":[],"package":"github.com/ipld/go-ipld-prime","purl":"pkg:golang/github.com/ipld/go-ipld-prime","source":"GO-2026-5073"}],"prev":{"headline":"InvenTree Plugin Installation - Insufficient Permissions","id":"CVE-2026-35479"},"products":["go-ipld-prime"],"published":"2026-04-07","related":[{"cvss_score":7.5,"headline":"go-ipld-prime json codec may panic if asked to encode bytes","id":"CVE-2023-22460","kev_date_added":null,"published":"2023-01-04"}],"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":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-04-09","vendors":["ipld"]},"summary":"An attacker can cause excessive memory allocation and denial of service by sending crafted CBOR payloads to the go-ipld-prime decoder.","url":"https://insights.sbomify.com/CVE-2026-35480/"}