{"id":"CVE-2026-122146","state":"PUBLISHED","title":"101arrowz fflate index.mjs unzipSync memory corruption","description":"A weakness has been identified in 101arrowz fflate up to 0.8.3. This issue affects the function unzipSync of the file esm/index.mjs. This manipulation causes memory corruption. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.","publishedAt":"2026-11-05T00:45:26.038Z","updatedAt":"2026-11-05T00:45:26.038Z","severity":{"score":6.9,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","source":"VulDB"},"assigner":"VulDB","products":["101arrowz fflate"],"affected":[{"vendor":"101arrowz","product":"fflate","versions":[{"version":"0.8.0","status":"affected"},{"version":"0.8.1","status":"affected"},{"version":"0.8.2","status":"affected"},{"version":"0.8.3","status":"affected"}],"cpes":["cpe:2.3:a:101arrowz:fflate:*:*:*:*:*:*:*:*"]}],"references":["https://vuldb.com/vuln/431150","https://vuldb.com/vuln/431150/cti","https://vuldb.com/cve/CVE-2026-122146","https://vuldb.com/submit/1027352","https://github.com/ictrun/java/issues/9"],"weaknesses":["CWE-119"],"ingestedAt":"2026-11-05T00:54:06.448Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/122xxx/CVE-2026-122146.json","commit":"060005c4a9d55cb0355222a65f904d604fa64b90","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-122146","state":"PUBLISHED","datePublished":"2026-11-05T00:45:26.038Z","dateUpdated":"2026-11-05T00:45:26.038Z","assignerShortName":"VulDB","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateReserved":"2026-11-04T18:21:49.726Z"},"containers":{"cna":{"title":"101arrowz fflate index.mjs unzipSync memory corruption","descriptions":[{"lang":"en","value":"A weakness has been identified in 101arrowz fflate up to 0.8.3. This issue affects the function unzipSync of the file esm/index.mjs. This manipulation causes memory corruption. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way."}],"affected":[{"vendor":"101arrowz","product":"fflate","versions":[{"version":"0.8.0","status":"affected"},{"version":"0.8.1","status":"affected"},{"version":"0.8.2","status":"affected"},{"version":"0.8.3","status":"affected"}],"cpes":["cpe:2.3:a:101arrowz:fflate:*:*:*:*:*:*:*:*"]}],"references":[{"url":"https://vuldb.com/vuln/431150","name":"VDB-431150 | 101arrowz fflate index.mjs unzipSync memory corruption","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/431150/cti","name":"VDB-431150 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/cve/CVE-2026-122146","name":"CVE-2026-122146 | CVE Analysis and Report","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/1027352","name":"Submit #1027352 | fflate <=0.8.3 Memory Corruption","tags":["third-party-advisory"]},{"url":"https://github.com/ictrun/java/issues/9","tags":["exploit","issue-tracking"]}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":6.9,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","baseSeverity":"MEDIUM"}},{"cvssV3_1":{"version":"3.1","baseScore":7.3,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C","baseSeverity":"HIGH"}},{"cvssV3_0":{"version":"3.0","baseScore":7.3,"vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C","baseSeverity":"HIGH"}},{"cvssV2_0":{"version":"2.0","baseScore":7.5,"vectorString":"AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:C"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-119","type":"CWE","lang":"en","description":"Memory Corruption"}]}],"providerMetadata":{"shortName":"VulDB","orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateUpdated":"2026-11-05T00:45:26.038Z"},"timeline":[{"time":"2026-11-04T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-11-04T01:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-11-04T19:26:54.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"ictrun (VulDB User)","type":"reporter"},{"lang":"en","value":"VulDB CNA Team","type":"coordinator"}],"x_generator":["VulDB PVTS v202611"]}}}}