{"schemaVersion":3,"id":"CVE-2026-32766","aliases":["UBUNTU-CVE-2026-32766","DEBIAN-CVE-2026-32766","CGA-2xcr-vwrg-754q","CGA-473v-rh89-gfxq","CGA-5h93-hcw9-p395","CGA-cfr5-pp57-8p99","CGA-frj6-pvmc-79c5","CGA-qjg6-q5j6-pc9w","CGA-wpv8-57pf-qphf","CGA-wv3h-g2f3-vq3j","CGA-7p28-rf8r-m4xh","CGA-hw4r-vqfc-gph2","GHSA-6gx3-4362-rf54","RUSTSEC-2026-0066"],"status":"published","duplicateOf":null,"title":null,"description":"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.","dates":{"published":"2026-03-20T00:07:36.444Z","modified":"2026-03-20T18:09:06.340Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":5.3,"severity":"medium","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"4.0","versionLabel":"v4.0","source":"CVE.org","score":1.7,"severity":"low","vector":"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/E:U","exploitability":null,"impact":null,"computed":false},{"version":"4.0","versionLabel":"v4.0","source":"OSV · Ubuntu","score":6.3,"severity":"medium","vector":"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/E:U","exploitability":null,"impact":null,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Ubuntu","score":5.3,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","exploitability":10,"impact":2.3,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Debian","score":5.3,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","exploitability":10,"impact":2.3,"computed":true},{"version":"4.0","versionLabel":"v4.0","source":"OSV · Wolfi","score":6.3,"severity":"medium","vector":"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/E:U","exploitability":null,"impact":null,"computed":true},{"version":"4.0","versionLabel":"v4.0","source":"OSV · Chainguard","score":6.3,"severity":"medium","vector":"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/E:U","exploitability":null,"impact":null,"computed":true},{"version":"4.0","versionLabel":"v4.0","source":"OSV · Crates.io","score":6.3,"severity":"medium","vector":"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/E:U","exploitability":null,"impact":null,"computed":true},{"version":"4.0","versionLabel":"v4.0","source":"NVD","score":1.7,"severity":"low","vector":"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/E:U/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:X/AU:X/R:X/V:X/RE:X/U:X","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":5.3,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00313,"percentile":0.22728,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0.064,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.00249},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00249,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00249,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00249,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00249,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00249,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00249,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00249,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00249,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00249,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00249,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00313,"percentile":0.22728}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.00249,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00249,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00249,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00249,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00249,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00301,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00313,"percentile":0.22728}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-436","name":"Interpretation Conflict","description":"Product A handles inputs or steps differently than Product B, which causes A to perform incorrect actions based on its perception of B's state.","type":"weakness","status":"Incomplete","abstraction":"Class","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/436.html"}],"affected":[{"vendor":"chainguard","product":"mise","name":"mise","label":"mise","ecosystem":"Chainguard","cpePart":null,"purl":"pkg:apk/chainguard/mise","purlType":"apk","versions":[{"text":"< 2026.4.15-r0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2026.4.15-r0","eol":null,"hubHref":null},{"vendor":"chainguard","product":"pixi","name":"pixi","label":"pixi","ecosystem":"Chainguard","cpePart":null,"purl":"pkg:apk/chainguard/pixi","purlType":"apk","versions":[{"text":"< 0.69.0-r0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0.69.0-r0","eol":null,"hubHref":null},{"vendor":"chainguard","product":"uv","name":"uv","label":"uv","ecosystem":"Chainguard","cpePart":null,"purl":"pkg:apk/chainguard/uv","purlType":"apk","versions":[{"text":"< 0.10.12-r0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0.10.12-r0","eol":null,"hubHref":null},{"vendor":"chainguard","product":"wasmcloud","name":"wasmcloud","label":"wasmcloud","ecosystem":"Chainguard","cpePart":null,"purl":"pkg:apk/chainguard/wasmcloud","purlType":"apk","versions":[{"text":"< 2.0.1-r0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.0.1-r0","eol":null,"hubHref":null},{"vendor":"wolfi","product":"pixi","name":"pixi","label":"pixi","ecosystem":"Wolfi","cpePart":null,"purl":"pkg:apk/wolfi/pixi","purlType":"apk","versions":[{"text":"< 0.69.0-r0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0.69.0-r0","eol":null,"hubHref":null},{"vendor":"wolfi","product":"uv","name":"uv","label":"uv","ecosystem":"Wolfi","cpePart":null,"purl":"pkg:apk/wolfi/uv","purlType":"apk","versions":[{"text":"< 0.10.12-r0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0.10.12-r0","eol":null,"hubHref":null},{"vendor":"wolfi","product":"wasmcloud","name":"wasmcloud","label":"wasmcloud","ecosystem":"Wolfi","cpePart":null,"purl":"pkg:apk/wolfi/wasmcloud","purlType":"apk","versions":[{"text":"< 2.0.1-r0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.0.1-r0","eol":null,"hubHref":null},{"vendor":"astral-sh","product":"tokio-tar","name":"tokio-tar","label":"tokio-tar","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 0.6.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0.6.0","eol":null,"hubHref":"/vendor/astral-sh/tokio-tar"},{"vendor":"astral","product":"astral-tokio-tar","name":"astral-tokio-tar","label":"astral-tokio-tar","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 0.6.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0.6.0","eol":null,"hubHref":"/vendor/astral/astral-tokio-tar"},{"vendor":"Crates.Io","product":"astral-tokio-tar","name":"astral-tokio-tar","label":"astral-tokio-tar","ecosystem":"Crates.Io","cpePart":null,"purl":"pkg:cargo/astral-tokio-tar","purlType":"cargo","versions":[{"text":"< 0.6.0","noFixRecorded":false,"fixedIn":null},{"text":"≥ 0.0.0-0, < 0.6.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0.6.0 | ≥ 0.0.0-0, < 0.6.0","eol":null,"hubHref":null},{"vendor":"debian","product":"rust-astral-tokio-tar","name":"rust-astral-tokio-tar","label":"rust-astral-tokio-tar","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/rust-astral-tokio-tar","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null},{"text":"< 0.6.0-1","noFixRecorded":false,"fixedIn":null}],"versionsText":"All versions (No fix recorded) | < 0.6.0-1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"rust-astral-tokio-tar","name":"rust-astral-tokio-tar","label":"rust-astral-tokio-tar","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/rust-astral-tokio-tar","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null}],"affectedCount":12,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://github.com/astral-sh/tokio-tar/security/advisories/GHSA-6gx3-4362-rf54","label":"github.com/astral-sh/tokio-tar/security/advisories/GHSA-6gx3-4362-rf54","hostname":"github.com","tags":["X Refsource CONFIRM","REPORT","Advisory","WEB","Mitigation","Vendor Advisory"]},{"url":"https://github.com/astral-sh/tokio-tar/commit/e5e0139cae4577eeedf5fc16b65e690bf988ce52","label":"github.com/astral-sh/tokio-tar/commit/e5e0139cae4577eeedf5fc16b65e690bf988ce52","hostname":"github.com","tags":["X Refsource MISC","REPORT","FIX","WEB","Patch"]},{"url":"https://ubuntu.com/security/CVE-2026-32766","label":"ubuntu.com/security/CVE-2026-32766","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-32766","label":"www.cve.org/CVERecord?id=CVE-2026-32766","hostname":"www.cve.org","tags":["REPORT"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-32766","label":"security-tracker.debian.org/tracker/CVE-2026-32766","hostname":"security-tracker.debian.org","tags":["Advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32766.json","label":"github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32766.json","hostname":"github.com","tags":["Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-32766","label":"nvd.nist.gov/vuln/detail/CVE-2026-32766","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://github.com/astral-sh/tokio-tar","label":"github.com/astral-sh/tokio-tar","hostname":"github.com","tags":["PACKAGE"]},{"url":"https://rustsec.org/advisories/RUSTSEC-2026-0066.html","label":"rustsec.org/advisories/RUSTSEC-2026-0066.html","hostname":"rustsec.org","tags":["WEB","Advisory"]},{"url":"https://crates.io/crates/astral-tokio-tar","label":"crates.io/crates/astral-tokio-tar","hostname":"crates.io","tags":["PACKAGE"]}],"lineage":{"upstream":[],"downstream":["SUSE-SU-2026:22005-1"],"duplicates":[],"related":["CGA-MHP2-39GM-72XW","SUSE-SU-2026:22005-1"]},"timeline":[{"kind":"published","date":"2026-03-20T00:07:36.444Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-03-20T18:09:06.340Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":21,"level":"low","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T15:47:49.731Z","stale":false,"partial":false}}