{"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": "2026-08-28T12:57:50.134Z"}, "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\u00a0massStoreRun\u00a0processing 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"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "CodeChecker", "vendor": "Ericsson", "versions": [{"lessThan": "6.28.3", "status": "affected", "version": "0", "versionType": "python"}]}], "source": "85b1779b-6ecd-4f52-bcc5-73eac4659dcf"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "CodeChecker's\u00a0massStoreRun\u00a0processing 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."}], "id": "CVE-2026-58107", "lastModified": "2026-08-28T16:18:18.293", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "YES", "Recovery": "AUTOMATIC", "Safety": "NEGLIGIBLE", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "PROOF_OF_CONCEPT", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "HIGH", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "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/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:N/AU:Y/R:A/V:X/RE:L/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "LOW"}, "source": "85b1779b-6ecd-4f52-bcc5-73eac4659dcf", "type": "Secondary"}]}, "published": "2026-08-28T16:18:18.293", "references": [{"source": "85b1779b-6ecd-4f52-bcc5-73eac4659dcf", "url": "https://github.com/Ericsson/codechecker/security/advisories/GHSA-w7jw-x567-hqr4"}], "sourceIdentifier": "85b1779b-6ecd-4f52-bcc5-73eac4659dcf", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-409"}, {"lang": "en", "value": "CWE-770"}], "source": "85b1779b-6ecd-4f52-bcc5-73eac4659dcf", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,6.28.3)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "CodeChecker", "source": "cna", "vendor": "Ericsson"}, "product": "codechecker", "vendor": "ericsson"}], "created": "2026-08-28T16:45:03.622360+00:00", "updated": "2026-08-28T17:00:13.590300+00:00", "vendors": ["ericsson", "ericsson$PRODUCT$codechecker"]}