{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-33055",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-03-17T18:10:50.213Z",
        "datePublished": "2026-03-20T07:06:08.390Z",
        "dateUpdated": "2026-03-20T15:44:15.706Z"
    },
    "containers": {
        "cna": {
            "title": "tar-rs incorrectly ignores PAX size headers if header size is nonzero",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-843",
                            "lang": "en",
                            "description": "CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "NONE",
                        "userInteraction": "ACTIVE",
                        "vulnConfidentialityImpact": "LOW",
                        "vulnIntegrityImpact": "LOW",
                        "vulnAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 5.1,
                        "baseSeverity": "MEDIUM",
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N",
                        "version": "4.0"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/alexcrichton/tar-rs/security/advisories/GHSA-gchp-q4r4-x4ff",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/alexcrichton/tar-rs/security/advisories/GHSA-gchp-q4r4-x4ff"
                },
                {
                    "name": "https://github.com/alexcrichton/tar-rs/commit/de1a5870e603758f430073688691165f21a33946",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/alexcrichton/tar-rs/commit/de1a5870e603758f430073688691165f21a33946"
                },
                {
                    "name": "https://www.cve.org/CVERecord?id=CVE-2025-62518",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://www.cve.org/CVERecord?id=CVE-2025-62518"
                }
            ],
            "affected": [
                {
                    "vendor": "alexcrichton",
                    "product": "tar-rs",
                    "versions": [
                        {
                            "version": "< 0.4.45",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-03-20T07:06:08.390Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "tar-rs is a tar archive reading/writing library for Rust. Versions 0.4.44 and below have conditional logic that skips the PAX size header in cases where the base header size is nonzero. As part of CVE-2025-62518, the astral-tokio-tar project was changed to correctly honor PAX size headers in the case where it was different from the base header. This is almost the inverse of the astral-tokio-tar issue. Any discrepancy in how tar parsers honor file size can be used to create archives that appear differently when unpacked by different archivers. In this case, the tar-rs (Rust tar) crate is an outlier in checking for the header size - other tar parsers (including e.g. Go archive/tar) unconditionally use the PAX size override. This can affect anything that uses the tar crate to parse archives and expects to have a consistent view with other parsers. This issue has been fixed in version 0.4.45."
                }
            ],
            "source": {
                "advisory": "GHSA-gchp-q4r4-x4ff",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-03-20T15:43:55.137601Z",
                                "id": "CVE-2026-33055",
                                "options": [
                                    {
                                        "Exploitation": "poc"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
                                    {
                                        "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": "2026-03-20T15:44:15.706Z"
                }
            }
        ]
    }
}