{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-102514", "assignerOrgId": "4daa8cea-433a-44bd-9456-53b127fc289a", "state": "PUBLISHED", "assignerShortName": "Secur0", "dateReserved": "2026-09-29T11:56:57.709Z", "datePublished": "2026-10-01T20:00:51.760Z", "dateUpdated": "2026-10-01T20:24:18.718Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "4daa8cea-433a-44bd-9456-53b127fc289a", "shortName": "Secur0", "dateUpdated": "2026-10-01T20:00:51.760Z"}, "title": "Out-of-bounds write in PeaZip PEA extractor allows code execution via a crafted .pea archive", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-787", "description": "CWE-787 Out-of-bounds Write", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-100", "descriptions": [{"lang": "en", "value": "CAPEC-100 Overflow Buffers"}]}], "affected": [{"vendor": "PeaZip", "product": "PeaZip", "repo": "https://github.com/peazip/PeaZip", "modules": ["PEA archive extractor (pea component)"], "programFiles": ["peazip-sources/dev/pea.pas"], "versions": [{"status": "affected", "version": "0", "lessThan": "11.3.0", "versionType": "semver"}], "defaultStatus": "unaffected", "platforms": ["Windows", "macOS", "Linux", "BSD"], "collectionURL": "https://github.com/peazip/PeaZip/releases"}], "descriptions": [{"lang": "en", "value": "Out-of-bounds Write (CWE-787) in the PEA archive extraction routine (pea.pas, unpea_procedure) of the first-party pea component in PeaZip 11.2.0 and earlier allows an attacker who convinces a victim to open or extract a crafted .pea archive to execute arbitrary code as the user running PeaZip. While decompressing a PCOMPRESS1 stream, the 32-bit compressed-block-size field of the first block (compsize) is read directly from the archive and used without validation as the length of a blockread into the fixed-size global buffers wbuf1/wbuf2 (1,114,112 bytes) and as the bound of the subsequent copy loop. The existing check \"compsize > WBUFSIZE\" is applied only to the size of each following block, so the first block escapes it; the same unvalidated value is also used to index wbuf1[compsize], an out-of-bounds read at an attacker-chosen offset. The copy loop additionally copies the requested length instead of the number of bytes actually read, and terminates on equality rather than on an upper bound. 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While decompressing a <code>PCOMPRESS1</code> stream, the 32-bit compressed-block-size field of the first block (<code>compsize</code>) is read directly from the archive and used without validation as the length of a <code>blockread</code> into the fixed-size global buffers <code>wbuf1/wbuf2</code> (1,114,112 bytes) and as the bound of the subsequent copy loop. The existing check \"<code>compsize</code> &gt; WBUFSIZE\" is applied only to the size of each following block, so the first block escapes it; the same unvalidated value is also used to index wbuf1[<code>compsize</code>], an out-of-bounds read at an attacker-chosen offset. The copy loop additionally copies the requested length instead of the number of bytes actually read, and terminates on equality rather than on an upper bound. 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Because the project is built without range checking and no archive password, integrity tag or non-default configuration is required, the overflow overwrites adjacent global data; code execution was demonstrated by two independent researchers against the official Linux x86-64 and Windows x64 builds, and the denial-of-service and memory-corruption primitive is cross-platform (Windows, macOS, Linux, BSD).</p>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-787", "description": "CWE-787 Out-of-bounds Write"}]}], "providerMetadata": {"orgId": "4daa8cea-433a-44bd-9456-53b127fc289a", "shortName": "Secur0", "dateUpdated": "2026-10-01T20:00:51.760Z"}}}, "cveMetadata": {"cveId": "CVE-2026-102514", "state": "PUBLISHED", "dateUpdated": "2026-10-01T20:24:18.718Z", "dateReserved": "2026-09-29T11:56:57.709Z", "assignerOrgId": "4daa8cea-433a-44bd-9456-53b127fc289a", "datePublished": "2026-10-01T20:00:51.760Z", "assignerShortName": "Secur0"}, "dataVersion": "5.2"}

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