Disclosure summary
Out-of-bounds read in the compact Theta sketch deserialization of Apache DataSketches C++ (repo: datasketches-cpp). compact_theta_sketch::deserialize() and wrapped_compact_theta_sketch::wrap() read header fields before checking that the input was long enough. For the compressed format, the size check could be defeated by a 32-bit overflow, and two header fields that control decoding were not validated; this also affected deserialization from a stream. A crafted or truncated sketch could cause a read past the end of the input. In the compressed case the over-read can be large, and the bytes read can become part of the deserialized sketch. This can cause a crash (denial of service) and could expose adjacent memory contents. This issue affects Apache DataSketches C++: from 3.1.0 before 5.3.0. Only applications that deserialize Theta sketches from untrusted sources are affected. Users are recommended to upgrade to version 5.3.0, which fixes this issue.
Source-reported weakness categories
CWE-125, CWE-190
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
CVEProject/cvelistV5 releases · RSS-2b11a7e1dade072c26c14342ed52b8ffeb8
Open original source · Updated Oct 10, 2026
CVE 2026-10-10_2300Z
CVE mention in publisher metadata; check the original affected versions.
CVEProject/cvelistV5 releases · RSS-f946067cb6a34653c12f3a7d3e105773b0f
Open original source · Updated Oct 10, 2026
CVE 2026-10-10_2200Z
CVE mention in publisher metadata; check the original affected versions.
CVEProject/cvelistV5 releases · RSS-7c1aa4e02ee105026a9d5ef835739da2231
Open original source · Updated Oct 10, 2026
CVE 2026-10-10_2100Z
CVE mention in publisher metadata; check the original affected versions.
CVEProject/cvelistV5 releases · RSS-5daad76275e9590636f1bfed69854f874d0
Open original source · Updated Oct 10, 2026
CVE 2026-10-10_2000Z
CVE mention in publisher metadata; check the original affected versions.
CVEProject/cvelistV5 releases · RSS-f5a41e504aba4034d4f99f9de25577fb6a1
Open original source · Updated Oct 10, 2026
CVE 2026-10-10_1900Z
CVE mention in publisher metadata; check the original affected versions.
CVEProject/cvelistV5 releases · RSS-f5dee9e139662097b84b17b3e74d5544c25
Open original source · Updated Oct 10, 2026
CVE 2026-10-10_1800Z
CVE mention in publisher metadata; check the original affected versions.
CVEProject/cvelistV5 releases · RSS-6729502a4ea3125ddd379f75d3eb8cb63a6
Open original source · Updated Oct 10, 2026
CVE 2026-10-10_1700Z
CVE mention in publisher metadata; check the original affected versions.
CVEProject/cvelistV5 releases · RSS-a10ecc85ff20aad80a7e8436dd92befdcfc
Open original source · Updated Oct 10, 2026
CVE 2026-10-10_1600Z
CVE mention in publisher metadata; check the original affected versions.
CVEProject/cvelistV5 releases · RSS-5f26de48c2d7605f54c0980f1221b67644b
Open original source · Updated Oct 10, 2026
CVE 2026-10-10_1500Z
CVE mention in publisher metadata; check the original affected versions.
CVEProject/cvelistV5 releases · RSS-95eb7d8256449b8a75dc66291b65bfe37a2
Open original source · Updated Oct 10, 2026
CVE 2026-10-10_1400Z
CVE mention in publisher metadata; check the original affected versions.
NIST National Vulnerability Database · NVD-CVE-2026-103635
Open original source · Updated Oct 10, 2026
Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.
Original records & references
PUBLISHED 2026-10-10T07:17:35-04:00
MODIFIED 2026-10-10T09:17:31-04:00
INGESTED 2026-10-10T20:55:17-04:00