{ "document": { "category": "csaf_base", "csaf_version": "2.0", "distribution": { "tlp": { "label": "WHITE" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this portal to enhance access to its information and vulnerabilities. The use of this information is subject to the following terms and conditions:\n\nThe vulnerabilities disclosed in this portal are gathered by NCSC-NL from a variety of open sources, which the user can retrieve from other platforms. NCSC-NL makes every reasonable effort to ensure that the content of this portal is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or real-time keeping up-to-date. NCSC-NL does not control nor guarantee the accuracy, relevance, timeliness or completeness of information obtained from these external sources. The vulnerabilities disclosed in this portal are intended solely for the convenience of professional parties to take appropriate measures to manage the risks posed to the cybersecurity. No rights can be derived from the information provided therein.\n\nNCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of the vulnerabilities disclosed in this portal. This includes damage resulting from the inaccuracy of incompleteness of the information contained in it.\nThe information on this page is subject to Dutch law. All disputes related to or arising from the use of this portal regarding the disclosure of vulnerabilities will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings." } ], "publisher": { "category": "coordinator", "contact_details": "cert@ncsc.nl", "name": "National Cyber Security Centre", "namespace": "https://www.ncsc.nl/" }, "title": "CVE-2026-32766", "tracking": { "current_release_date": "2026-03-29T16:14:55.959294Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-32766", "initial_release_date": "2026-03-17T21:00:13.561366Z", "revision_history": [ { "date": "2026-03-17T21:00:13.561366Z", "number": "1", "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| References created (3).| CWES updated (1)." }, { "date": "2026-03-17T21:00:15.894691Z", "number": "2", "summary": "NCSC Score created." }, { "date": "2026-03-19T11:40:23.337942Z", "number": "3", "summary": "Source created.| CVE status created. (valid)| Description created for source.| References created (3).| CWES updated (1)." }, { "date": "2026-03-20T18:21:49.146083Z", "number": "4", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (2).| CWES updated (1)." }, { "date": "2026-03-20T18:21:52.893201Z", "number": "5", "summary": "NCSC Score updated." }, { "date": "2026-03-20T18:22:34.322088Z", "number": "6", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products created (1).| References created (2).| CWES updated (1)." }, { "date": "2026-03-20T18:22:38.771858Z", "number": "7", "summary": "NCSC Score updated." }, { "date": "2026-03-20T18:32:29.338015Z", "number": "8", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (13).| Product Identifiers created (4).| Product Remediations created (13).| References created (4).| CWES updated (1).| Vendor_assessment created." }, { "date": "2026-03-20T18:32:33.338595Z", "number": "9", "summary": "NCSC Score updated." }, { "date": "2026-03-20T18:38:58.673940Z", "number": "10", "summary": "Unknown change." }, { "date": "2026-03-20T21:41:43.126166Z", "number": "11", "summary": "CVSS created.| References created (1)." }, { "date": "2026-03-20T21:41:47.048707Z", "number": "12", "summary": "NCSC Score updated." }, { "date": "2026-03-20T21:59:41.790577Z", "number": "13", "summary": "Source connected.| CVE status created. (valid)| EPSS created." }, { "date": "2026-03-21T12:20:04.378950Z", "number": "14", "summary": "Source connected.| CVE status created. (valid)| Description created for source.| CWES updated (1)." }, { "date": "2026-03-21T12:45:14.449964Z", "number": "15", "summary": "Source created.| CVE status created. (valid)| Description created for source." }, { "date": "2026-03-21T13:47:27.989924Z", "number": "16", "summary": "References removed (1)." }, { "date": "2026-03-22T00:51:54.316747Z", "number": "17", "summary": "References created (1)." }, { "date": "2026-03-22T11:24:56.394121Z", "number": "18", "summary": "References removed (1)." }, { "date": "2026-03-23T00:54:04.522496Z", "number": "19", "summary": "References created (1)." }, { "date": "2026-03-23T05:16:01.335127Z", "number": "20", "summary": "References removed (1)." }, { "date": "2026-03-23T06:19:59.167427Z", "number": "21", "summary": "Products created (1).| Product Identifiers created (1)." }, { "date": "2026-03-24T20:56:27.755633Z", "number": "22", "summary": "References created (1)." }, { "date": "2026-03-25T18:41:41.598632Z", "number": "23", "summary": "CVSS updated.| References created (1)." }, { "date": "2026-03-25T18:41:42.869030Z", "number": "24", "summary": "NCSC Score updated." }, { "date": "2026-03-29T03:15:53.447217Z", "number": "25", "summary": "CVSS updated.| References removed (1)." }, { "date": "2026-03-29T03:16:03.875246Z", "number": "26", "summary": "NCSC Score updated." }, { "date": "2026-03-29T16:14:49.910287Z", "number": "27", "summary": "CVSS updated.| References created (1)." }, { "date": "2026-03-29T16:14:51.659254Z", "number": "28", "summary": "NCSC Score updated." } ], "status": "interim", "version": "28" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/1", "product": { "name": "vers:rpm/1", "product_id": "CSAFPID-2905027", "product_identification_helper": { "cpe": "cpe:/a:redhat:confidential_compute_attestation:1" } } } ], "category": "product_name", "name": "Confidential Compute Attestation" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/10", "product": { "name": "vers:rpm/10", "product_id": "CSAFPID-2858634", "product_identification_helper": { "cpe": "cpe:/o:redhat:enterprise_linux:10" } } } ], "category": "product_name", "name": "Red Hat Enterprise Linux 10" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/9", "product": { "name": "vers:rpm/9", "product_id": "CSAFPID-1439319", "product_identification_helper": { "cpe": "cpe:/a:redhat:enterprise_linux:9" } } } ], "category": "product_name", "name": "Red Hat Enterprise Linux 9" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/4", "product": { "name": "vers:rpm/4", "product_id": "CSAFPID-1439328", "product_identification_helper": { "cpe": "cpe:/a:redhat:openshift:4" } } } ], "category": "product_name", "name": "Red Hat OpenShift Container Platform 4" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-1920008" } } ], "category": "product_name", "name": "kata-containers" } ], "category": "product_family", "name": "Red Hat OpenShift Container Platform 4" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-3036153" } } ], "category": "product_name", "name": "osc-monitor-rhel9" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-3049532" } } ], "category": "product_name", "name": "osc-operator-bundle" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-3049533" } } ], "category": "product_name", "name": "osc-podvm-builder-rhel9" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-3036154" } } ], "category": "product_name", "name": "osc-podvm-payload-rhel9" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-3036155" } } ], "category": "product_name", "name": "osc-rhel9-operator" } ], "category": "product_family", "name": "Confidential Compute Attestation" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-5757239" } } ], "category": "product_name", "name": "trustee" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-2878773" } } ], "category": "product_name", "name": "trustee-guest-components" } ], "category": "product_family", "name": "Red Hat Enterprise Linux 10" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-2485170" } } ], "category": "product_name", "name": "trustee-guest-components" } ], "category": "product_family", "name": "Red Hat Enterprise Linux 9" } ], "category": "vendor", "name": "Red Hat" }, { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:microsoft/*", "product": { "name": "vers:microsoft/*", "product_id": "CSAFPID-5890857", "product_identification_helper": { "cpe": "cpe:2.3:a:microsoft:azl3_kata-containers-cc_3.15.0.aks0-7:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "azl3 kata-containers-cc 3.15.0.aks0-7 on Azure Linux 3.0" } ], "category": "product_family", "name": "Open Source Software" } ], "category": "vendor", "name": "Microsoft" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<0.6.0", "product": { "name": "vers:unknown/<0.6.0", "product_id": "CSAFPID-5874114" } } ], "category": "product_name", "name": "tokio-tar" } ], "category": "vendor", "name": "astral-sh" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-32766", "cwe": { "id": "CWE-436", "name": "Interpretation Conflict" }, "notes": [ { "category": "description", "text": "## Impact\n\nIn versions 0.5.6 and earlier of astral-tokio-tar, malformed PAX extensions were silently skipped when parsing tar archives. This silent skipping (rather than rejection) of invalid PAX extensions could be used as a building block for a parser differential, for example by having astral-tokio-tar silently skip a malformed GNU “long link” extension so that a subsequent parser would misinterpret the extension.\n\nIn practice, exploiting this behavior in astral-tokio-tar requires a secondary misbehaving tar parser, i.e. one that insufficiently validates malformed PAX extensions and interprets them rather than skipping or erroring on them. Consequently this advisory is considered low-severity within astral-tokio-tar itself, as it requires a separate vulnerability against any unrelated tar parser.\n\n## Patches\n\nVersions 0.6.0 and newer of astral-tokio-tar reject invalid PAX extensions, rather than silently skipping them. \n\n## Workarounds\n\nUsers are advised to upgrade to version 0.6.0 or newer to address this advisory.\n\nMost users should experience no breaking changes as a result of the patch above. Some users who attempt to extract poorly constructed tar files may experience errors; users should re-construct their tar files with a conforming tar parser.\n\n## Attribution\n\n- Sergei Zimmerman (@xokdvium)", "title": "github - https://github.com/advisories/GHSA-6gx3-4362-rf54" }, { "category": "description", "text": "## Impact\n\nIn versions 0.5.6 and earlier of astral-tokio-tar, malformed PAX extensions were silently skipped when parsing tar archives. This silent skipping (rather than rejection) of invalid PAX extensions could be used as a building block for a parser differential, for example by having astral-tokio-tar silently skip a malformed GNU “long link” extension so that a subsequent parser would misinterpret the extension.\n\nIn practice, exploiting this behavior in astral-tokio-tar requires a secondary misbehaving tar parser, i.e. one that insufficiently validates malformed PAX extensions and interprets them rather than skipping or erroring on them. Consequently this advisory is considered low-severity within astral-tokio-tar itself, as it requires a separate vulnerability against any unrelated tar parser.\n\n## Patches\n\nVersions 0.6.0 and newer of astral-tokio-tar reject invalid PAX extensions, rather than silently skipping them. \n\n## Workarounds\n\nUsers are advised to upgrade to version 0.6.0 or newer to address this advisory.\n\nMost users should experience no breaking changes as a result of the patch above. Some users who attempt to extract poorly constructed tar files may experience errors; users should re-construct their tar files with a conforming tar parser.\n\n## Attribution\n\n- Sergei Zimmerman (@xokdvium)", "title": "github - https://api.github.com/advisories/GHSA-6gx3-4362-rf54" }, { "category": "description", "text": "astral-tokio-tar is a tar archive reading/writing library for async Rust. In versions 0.5.6 and earlier, malformed PAX extensions were silently skipped when parsing tar archives. This silent skipping (rather than rejection) of invalid PAX extensions could be used as a building block for a parser differential, for example by silently skipping a malformed GNU “long link” extension so that a subsequent parser would misinterpret the extension. In practice, exploiting this behavior in astral-tokio-tar requires a secondary misbehaving tar parser, i.e. one that insufficiently validates malformed PAX extensions and interprets them rather than skipping or erroring on them. This vulnerability is considered low-severity as it requires a separate vulnerability against any unrelated tar parser. This issue has been fixed in version 0.6.0.", "title": "nvd - https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-32766" }, { "category": "description", "text": "astral-tokio-tar is a tar archive reading/writing library for async Rust. In versions 0.5.6 and earlier, malformed PAX extensions were silently skipped when parsing tar archives. This silent skipping (rather than rejection) of invalid PAX extensions could be used as a building block for a parser differential, for example by silently skipping a malformed GNU “long link” extension so that a subsequent parser would misinterpret the extension. In practice, exploiting this behavior in astral-tokio-tar requires a secondary misbehaving tar parser, i.e. one that insufficiently validates malformed PAX extensions and interprets them rather than skipping or erroring on them. This vulnerability is considered low-severity as it requires a separate vulnerability against any unrelated tar parser. This issue has been fixed in version 0.6.0.", "title": "cveprojectv5 - https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/32xxx/CVE-2026-32766.json" }, { "category": "description", "text": "A flaw was found in astral-tokio-tar, a software component for handling tar archives. This flaw causes malformed PAX (Portable Archive eXchange) extensions within an archive to be silently ignored. An attacker could leverage this to create a specially crafted archive that, when processed by astral-tokio-tar and then by another vulnerable tar program, could be interpreted differently. This 'parser differential' might lead to misinterpretation of the archive's contents, but it requires a separate vulnerability in the secondary tar program for exploitation.\nThis is a LOW impact flaw in `astral-tokio-tar` where malformed PAX extensions are silently ignored, potentially leading to a parser differential. Exploitation requires a secondary, vulnerable tar program that misinterprets these extensions. Red Hat products are only affected if they integrate `astral-tokio-tar` with such a vulnerable secondary parser.", "title": "redhat - https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-32766.json" }, { "category": "description", "text": "astral-tokio-tar insufficiently validates PAX extensions during extraction", "title": "microsoft - https://api.msrc.microsoft.com/cvrf/v3.0/cvrf/2026-Mar" }, { "category": "description", "text": "astral-tokio-tar is a tar archive reading/writing library for async Rust. In versions 0.5.6 and earlier, malformed PAX extensions were silently skipped when parsing tar archives. This silent skipping (rather than rejection) of invalid PAX extensions could be used as a building block for a parser differential, for example by silently skipping a malformed GNU “long link” extension so that a subsequent parser would misinterpret the extension. In practice, exploiting this behavior in astral-tokio-tar requires a secondary misbehaving tar parser, i.e. one that insufficiently validates malformed PAX extensions and interprets them rather than skipping or erroring on them. This vulnerability is considered low-severity as it requires a separate vulnerability against any unrelated tar parser. This issue has been fixed in version 0.6.0.", "title": "debian - https://security-tracker.debian.org/tracker/CVE-2026-32766" }, { "category": "other", "text": "0.00048", "title": "EPSS" }, { "category": "other", "text": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N", "title": "CVSSV4" }, { "category": "other", "text": "6.3", "title": "CVSSV4 base score" }, { "category": "other", "text": "4.3", "title": "NCSC Score" }, { "category": "other", "text": "Is related to an uncommon cwe id", "title": "NCSC Score top increasing factors" }, { "category": "other", "text": "There is cwe data available from source Nvd, The value of the most recent CVSS (V3) score", "title": "NCSC Score top decreasing factors" }, { "category": "details", "text": "Severity: 1\n", "title": "Vendor assessment" } ], "product_status": { "known_affected": [ "CSAFPID-5874114", "CSAFPID-1439319", "CSAFPID-1439328", "CSAFPID-1920008", "CSAFPID-2485170", "CSAFPID-2858634", "CSAFPID-2878773", "CSAFPID-2905027", "CSAFPID-3036153", "CSAFPID-3036154", "CSAFPID-3036155", "CSAFPID-3049532", "CSAFPID-3049533", "CSAFPID-5757239", "CSAFPID-5890857" ] }, "references": [ { "category": "external", "summary": "Source - github", "url": "https://github.com/advisories/GHSA-6gx3-4362-rf54" }, { "category": "external", "summary": "Source raw - github", "url": "https://api.github.com/advisories/GHSA-6gx3-4362-rf54" }, { "category": "external", "summary": "Source - github", "url": "https://api.github.com/advisories/GHSA-6gx3-4362-rf54" }, { "category": "external", "summary": "Source - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-32766" }, { "category": "external", "summary": "Source - cveprojectv5", "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/32xxx/CVE-2026-32766.json" }, { "category": "external", "summary": "Source - redhat", "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-32766.json" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Source - microsoft", "url": "https://api.msrc.microsoft.com/cvrf/v3.0/cvrf/2026-Mar" }, { "category": "external", "summary": "Source - debian", "url": "https://security-tracker.debian.org/tracker/CVE-2026-32766" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd; redhat", "url": "https://github.com/astral-sh/tokio-tar/security/advisories/GHSA-6gx3-4362-rf54" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd; redhat", "url": "https://github.com/astral-sh/tokio-tar/commit/e5e0139cae4577eeedf5fc16b65e690bf988ce52" }, { "category": "external", "summary": "Reference - github", "url": "https://github.com/advisories/GHSA-6gx3-4362-rf54" }, { "category": "external", "summary": "Reference - redhat", "url": "https://www.cve.org/CVERecord?id=CVE-2026-32766" }, { "category": "external", "summary": "Reference - github; redhat", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-32766" }, { "category": "external", "summary": "Reference - github", "url": "https://rustsec.org/advisories/RUSTSEC-2026-0066.html" } ], "remediations": [ { "category": "mitigation", "details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.", "product_ids": [ "CSAFPID-1439319", "CSAFPID-1439328", "CSAFPID-1920008", "CSAFPID-2485170", "CSAFPID-2858634", "CSAFPID-2878773", "CSAFPID-2905027", "CSAFPID-3036153", "CSAFPID-3036154", "CSAFPID-3036155", "CSAFPID-3049532", "CSAFPID-3049533", "CSAFPID-5757239" ] } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N", "baseScore": 2.5, "baseSeverity": "LOW" }, "products": [ "CSAFPID-1439319", "CSAFPID-1439328", "CSAFPID-1920008", "CSAFPID-2485170", "CSAFPID-2858634", "CSAFPID-2878773", "CSAFPID-2905027", "CSAFPID-3036153", "CSAFPID-3036154", "CSAFPID-3036155", "CSAFPID-3049532", "CSAFPID-3049533", "CSAFPID-5757239", "CSAFPID-5874114", "CSAFPID-5890857" ] } ], "title": "CVE-2026-32766" } ] }