{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-58107","assignerOrgId":"85b1779b-6ecd-4f52-bcc5-73eac4659dcf","state":"PUBLISHED","assignerShortName":"ERIC","dateReserved":"2026-06-29T10:41:35.472Z","datePublished":"2026-08-28T12:57:50.134Z","dateUpdated":"2026-08-28T18:26:17.181Z"},"containers":{"cna":{"providerMetadata":{"orgId":"85b1779b-6ecd-4f52-bcc5-73eac4659dcf","shortName":"ERIC","dateUpdated":"2026-08-28T12:57:50.134Z"},"title":"Authenticated Remote Denial of Service via Unbounded zlib Decompression in massStoreRun","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-409","description":"CWE-409 Improper handling of highly compressed data (data amplification)","type":"CWE"}]},{"descriptions":[{"lang":"en","cweId":"CWE-770","description":"CWE-770 Allocation of resources without limits or throttling","type":"CWE"}]}],"affected":[{"vendor":"Ericsson","product":"CodeChecker","versions":[{"status":"affected","version":"0","lessThan":"6.28.3","versionType":"python"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"CodeChecker's massStoreRun processing path performs one-shot decompression of attacker-controlled, Base64-encoded zlib data without enforcing a maximum decompressed size.\n\n\n\nAn authenticated user with permission to store analysis runs can submit a highly compressed payload that expands to a significantly larger byte sequence. Because the entire decompressed output is materialized in memory before being written to a temporary file, a sufficiently large payload may exhaust process or host memory and consume substantial disk space, resulting in denial of service.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>CodeChecker's&nbsp;<code>massStoreRun</code>&nbsp;processing path performs one-shot decompression of attacker-controlled, Base64-encoded zlib data without enforcing a maximum decompressed size.</p><p>An authenticated user with permission to store analysis runs can submit a highly compressed payload that expands to a significantly larger byte sequence. Because the entire decompressed output is materialized in memory before being written to a temporary file, a sufficiently large payload may exhaust process or host memory and consume substantial disk space, resulting in denial of service.</p>"}]}],"references":[{"url":"https://github.com/Ericsson/codechecker/security/advisories/GHSA-w7jw-x567-hqr4"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"HIGH","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subAvailabilityImpact":"NONE","exploitMaturity":"PROOF_OF_CONCEPT","Safety":"NEGLIGIBLE","Automatable":"YES","Recovery":"AUTOMATIC","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"LOW","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"MEDIUM","baseScore":5.5,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/S:N/AU:Y/R:A/RE:L"}}],"credits":[{"lang":"en","value":"Nir Yehoshua, Cipher Security Labs","type":"finder"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.4"}},"adp":[{"references":[{"url":"https://github.com/Ericsson/codechecker/security/advisories/GHSA-w7jw-x567-hqr4","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-28T18:25:47.891797Z","id":"CVE-2026-58107","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-28T18:26:17.181Z"}}]}}