{"answers":{"affected":"3 open source packages ship an affected version, including github.com/klever-io/klever-go.","exploited":"There is no known exploitation of CVE-2026-54755 in the wild and no public exploit code.","fix":"Upgrade github.com/klever-io/klever-go to 1.7.19 or later.","what":"CVE-2026-54755 is a critical vulnerability in klever-io klever-go, published on 28 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-54755 and fix it if it is affected.\n\nWhat it is: CVE-2026-54755 is a critical vulnerability in klever-io klever-go, published on 28 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-54755 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/klever-io/klever-go (Go): affected all versions; fixed in 1.7.19\n- github.com/klever-io/klever-go (Go): affected all versions; fixed in 1.7.19\n- github.com/klever-io/klever-go (Go): affected all versions; fixed in 1.7.19\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-2026-54755/ (Markdown: https://insights.sbomify.com/CVE-2026-54755/index.md)","id":"CVE-2026-54755","markdown":"https://insights.sbomify.com/CVE-2026-54755/index.md","name":"CVE-2026-54755","record":{"aliases":["GHSA-cgc5-v3f2-8m2v","GO-2026-6310"],"analysis":{"component_type":"other","fix_type":"upgrade","impacts":["data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"Klever blockchain protocol","requires_auth":"low_privilege","summary":"Attackers can exploit an integer overflow in royalty validation to mint unbacked native tokens, affecting Klever blockchain users and operators.","user_interaction":"not_required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":9.6,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-190","name":"Integer Overflow or Wraparound"}],"description":"Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.19, split-royalty fields decoded in core/kapp/builtInFunctions/utils.go can contain values greater than core.HundredPercent, and core/kapp/kda/create.go and core/kapp/kda/trigger.go sum those values in uint32 accumulators. Crafted values such as two 0x80000000 entries wrap the validation sum to zero and pass CheckValid100Params. Royalty payout paths in core/kapp/accounts/accounts.go, core/kapp/market/market.go, and core/kapp/ito/ito.go then credit each oversized split amount and silently discard a negative remainder, allowing ordinary asset transfers, marketplace purchases, or ITO purchases to create unbacked KLV or other assets. This issue is fixed in version 1.7.19.","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":"Klever-Go: Integer overflow in split-royalty validation enables unbounded minting of KLV (native token)","id":"CVE-2026-54755","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"integer_overflow","year":"2026"},"n_packages":3,"n_references":3,"next":{"headline":"Jodit Editor: Prototype pollution via Jodit.configure() / ConfigMerge","id":"CVE-2026-54756"},"packages":[{"ecosystem":"Go","fixed":["1.7.19"],"introduced":["0"],"last_affected":[],"package":"github.com/klever-io/klever-go","purl":null,"source":"GHSA-cgc5-v3f2-8m2v"},{"ecosystem":"Go","fixed":["1.7.19"],"introduced":["0"],"last_affected":[],"package":"github.com/klever-io/klever-go","purl":"pkg:golang/github.com/klever-io/klever-go","source":"GHSA-cgc5-v3f2-8m2v"},{"ecosystem":"Go","fixed":["1.7.19"],"introduced":["0"],"last_affected":[],"package":"github.com/klever-io/klever-go","purl":"pkg:golang/github.com/klever-io/klever-go","source":"GO-2026-6310"}],"prev":{"headline":"Klever: Marketplace settlement mints KLV when referral % + royalty % exceed the bid (negative seller share silently skipped)","id":"CVE-2026-54754"},"products":["klever-go"],"published":"2026-08-28","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":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"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":"2026-08-31","vendors":["klever-io"]},"summary":"Attackers can exploit an integer overflow in royalty validation to mint unbacked native tokens, affecting Klever blockchain users and operators.","url":"https://insights.sbomify.com/CVE-2026-54755/"}