{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-107705",
        "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "state": "PUBLISHED",
        "assignerShortName": "VulnCheck",
        "dateReserved": "2026-10-08T16:52:24.550Z",
        "datePublished": "2026-10-08T19:51:12.884Z",
        "dateUpdated": "2026-10-08T19:51:12.884Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
                "shortName": "VulnCheck",
                "dateUpdated": "2026-10-08T19:51:12.884Z"
            },
            "datePublic": "2026-10-05T00:00:00.000Z",
            "title": "Poppler 0.42.0 through 26.10.0 Stack Buffer Overflow via Decrypt::revision6Hash()",
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Poppler 0.42.0 through 26.10.0 contains a stack-based buffer overflow in Decrypt::revision6Hash() that allows attackers controlling the password to overwrite stack memory when opening AESV3/R6 encrypted PDFs. Attackers can supply a password longer than 127 bytes through applications using the libpoppler, libpoppler-glib or C++ API to overflow the K1 and E buffers, crashing the process or corrupting memory."
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "description": "Stack-based Buffer Overflow",
                            "cweId": "CWE-121",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "freedesktop",
                    "product": "poppler",
                    "defaultStatus": "unaffected",
                    "versions": [
                        {
                            "version": "0.42.0",
                            "lessThanOrEqual": "26.10.0",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:a:freedesktop:poppler:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "0.42.0",
                                    "versionEndIncluding": "26.10.0"
                                }
                            ]
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "format": "CVSS",
                    "cvssV4_0": {
                        "version": "4.0",
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N",
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "PRESENT",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "LOW",
                        "vulnAvailabilityImpact": "HIGH",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 8.3,
                        "baseSeverity": "HIGH"
                    }
                },
                {
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                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H",
                        "attackVector": "NETWORK",
                        "attackComplexity": "HIGH",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "scope": "UNCHANGED",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "LOW",
                        "availabilityImpact": "HIGH",
                        "baseScore": 6.5,
                        "baseSeverity": "MEDIUM"
                    }
                }
            ],
            "references": [
                {
                    "url": "https://gitlab.freedesktop.org/poppler/poppler/-/work_items/1814",
                    "tags": [
                        "issue-tracking"
                    ]
                },
                {
                    "url": "https://gitlab.freedesktop.org/poppler/poppler/-/merge_requests/2398",
                    "tags": [
                        "patch"
                    ]
                },
                {
                    "url": "https://gitlab.freedesktop.org/poppler/poppler/-/blob/poppler-26.10.0/poppler/Decrypt.cc#L1767",
                    "tags": [
                        "technical-description"
                    ]
                },
                {
                    "url": "https://gitlab.freedesktop.org/poppler/poppler",
                    "tags": [
                        "product"
                    ]
                },
                {
                    "name": "VulnCheck Advisory: Poppler 0.42.0 through 26.10.0 Stack Buffer Overflow via Decrypt::revision6Hash()",
                    "tags": [
                        "third-party-advisory"
                    ],
                    "url": "https://www.vulncheck.com/advisories/poppler-0.42.0-through-26.10.0-stack-buffer-overflow-via-decrypt-revision6hash"
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "Aziz Elbelaychy (Ostorlab)",
                    "type": "finder"
                }
            ],
            "x_generator": {
                "engine": "vulncheck-endgame"
            }
        }
    }
}