{"id":"CVE-2026-90559","description":"snappy-java through 1.1.10.8 contains an out-of-bounds write vulnerability in Snappy.uncompress(ByteBuffer, ByteBuffer) because destination buffer capacity is never validated against decompressed size. Attackers can supply valid compressed data that decompresses larger than the destination buffer, causing writes past buffer boundaries and JVM termination.","cvssScore":8.7,"cvssVersion":"4.0","cvssVector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","cvssMetrics":[{"version":"4.0","score":8.7,"severity":"HIGH","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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","source":"disclosure@vulncheck.com","type":"Secondary"},{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"disclosure@vulncheck.com","type":"Primary"}],"cwes":["CWE-787"],"resolved":"NO-FIX-IDENTIFIED","published":"2026-09-12","lastModified":"2026-09-12","references":[{"url":"https://github.com/xerial/snappy-java","source":"disclosure@vulncheck.com"},{"url":"https://github.com/xerial/snappy-java/blob/v1.1.10.8/src/main/java/org/xerial/snappy/Snappy.java#L561","source":"disclosure@vulncheck.com"},{"url":"https://github.com/xerial/snappy-java/issues/728","source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/snappy-java-through-1.1.10.8-out-of-bounds-write-via-uncompress","source":"disclosure@vulncheck.com"}],"reasoning":{"decidingSource":"no-exploit","decidingReason":"Resolved from QUEUED-FOR-REVIEW: this CVE affects a known product, but nothing published names a fix and nothing published shows an exploit. That is a statement about the evidence, not about the defect — it does not mean the vulnerability is unimportant or unreachable, only that neither of the two things VRT can act on exists.","verdicts":[{"rule":"rejected","stage":"identity","outcome":"no-match"},{"rule":"armr-patch-file","stage":"scope","outcome":"no-match"},{"rule":"armr-secure-rule-file","stage":"scope","outcome":"no-match"},{"rule":"manual-classification","stage":"scope","outcome":"no-match"},{"rule":"h2-history","stage":"scope","outcome":"no-match"},{"rule":"non-java-upstream","stage":"scope","outcome":"no-match"},{"rule":"oracle-component","stage":"scope","outcome":"no-match"},{"rule":"osv-maven","stage":"scope","outcome":"no-match"},{"rule":"cna-maven-package","stage":"scope","outcome":"matched","status":"QUEUED-FOR-REVIEW","detail":"CNA declares the affected component is a Maven artifact"},{"rule":"patch-hint","stage":"disposition","outcome":"no-match"},{"rule":"open-source-maven","stage":"disposition","outcome":"no-match"},{"rule":"poc-derivable","stage":"disposition","outcome":"no-match"},{"rule":"no-exploit","stage":"disposition","outcome":"matched","status":"NO-FIX-IDENTIFIED","detail":"No public exploits or POCs found in Exploit-DB, Nuclei templates, or GitHub POC repositories, and CISA's Vulnrichment assessment records no demonstrated exploit. No upstream fix reference or open-source Maven package was found either, so there is nothing to act on from either direction.","decisive":true},{"rule":"secure-rule-match","stage":"disposition","outcome":"no-match"},{"rule":"below-action-threshold","stage":"disposition","outcome":"skipped"},{"rule":"no-exploit-published","stage":"disposition","outcome":"skipped"}]},"assessment":{"record":{"state":"active"},"protection":{"level":"none"},"action":{"state":"not-needed"},"review":{"state":"automated","basis":"upstream-data"}},"signals":{"hasPOC":false,"pocCount":0},"kev":{"inKEV":false},"epss":{"available":true,"score":0.0035,"percentile":0.28305},"ssvc":{"available":true,"exploitation":"none","automatable":"yes","technicalImpact":"partial"}}