{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-87822 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-87822 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-87822 is a high-severity denial of service vulnerability in tdunning t-digest, published on 9 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-87822 and fix it if it is affected.\n\nWhat it is: CVE-2026-87822 is a high-severity denial of service vulnerability in tdunning t-digest, published on 9 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-87822 in the wild and no public exploit code.\n\nAffected product: tdunning t-digest. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2026-87822/ (Markdown: https://insights.sbomify.com/CVE-2026-87822/index.md)","id":"CVE-2026-87822","markdown":"https://insights.sbomify.com/CVE-2026-87822/index.md","name":"CVE-2026-87822","record":{"aliases":["GHSA-32f6-mgwr-pvc4","UBUNTU-CVE-2026-87822"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Java t-digest library","requires_auth":"none","summary":"Attackers can cause denial of service by injecting NaN values into serialized t-digest data, degrading merge performance.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","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-407","name":"Inefficient Algorithmic Complexity"}],"description":"t-digest versions 3.1 through 3.3 fail to validate centroid means during deserialization in MergingDigest.fromBytes, allowing attackers to inject NaN values that bypass validation checks. Attackers can craft malicious serialized digests containing NaN centroids that degrade sorting performance from O(n log n) to O(n squared), causing severe processing delays during merge operations.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"t-digest 3.1 through 3.3 Denial of Service via NaN Centroid Means in MergingDigest.fromBytes","id":"CVE-2026-87822","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"zstd-jni 1.1.1 through 1.5.7-13 Out-of-Bounds Read via Direct ByteBuffer Frame-Size Methods","id":"CVE-2026-87823"},"packages":[],"prev":{"headline":"Lara Dashboard 0.9.2 through 1.3.1 Server-Side Request Forgery in Builder Markdown Fetch","id":"CVE-2026-87821"},"products":["t-digest"],"published":"2026-09-09","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-10","vendors":["tdunning"]},"summary":"Attackers can cause denial of service by injecting NaN values into serialized t-digest data, degrading merge performance.","url":"https://insights.sbomify.com/CVE-2026-87822/"}