{"id":"CVE-2026-47425","aliases":["EUVD-2026-46348","GHSA-q53q-5r4j-5729","PYSEC-2026-2971"],"status":"published","title":"Rattler vulnerable to entry-point path traversal in noarch:python install (arbitrary file write)","description":"Rattler is a library that provides common functionality used within the conda ecosystem. Prior to version 0.43.2, `EntryPoint::FromStr` in `rattler_conda_types` performs only `.trim()` on the `command` field before the linker joins it onto the install prefix and writes an executable Python script. A malicious `noarch:python` package can ship an `info/link.json` with an entry-point name containing `..`, `/`, `\\`, or an absolute path; the resulting file is written outside the prefix (or clobbers an existing in-prefix entry-point such as `bin/pip`) with mode `0o775` on Unix and a copied launcher `.exe` on Windows. This affects the default install path of `pixi install`, `mamba install` via py-rattler, `rattler-build`, and any other consumer of the `rattler` install crate; no flag or post-link-script opt-in is involved. Version 0.43.2 contains a fix for the issue.","severity":{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00196,"percentile":0.09351,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-22","CWE-73"],"published":"2026-06-01T14:15:31Z","modified":"2026-10-28T02:30:30Z","fixes":[{"ecosystem":"crates.io","package":"rattler","fixed_in":["0.43.2"],"sources":["ghsa","osv"]},{"ecosystem":"PyPI","package":"py-rattler","fixed_in":["0.24.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"crates.io","package":"rattler","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.43.2"}]}]},{"source":"ghsa","ecosystem":"PyPI","package":"py-rattler","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"0.23.2"},{"fixed":"0.24.0"}]}]},{"source":"osv","ecosystem":"crates.io","package":"rattler","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.43.2"}]}]},{"source":"osv","ecosystem":"PyPI","package":"py-rattler","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.24.0"}]}],"versions":["0.1.0","0.1.1","0.1.2","0.10.0","0.11.0","0.12.0","0.13.0","0.13.1","0.14.0","0.15.0","0.16.0","0.17.0","0.18.0","0.19.0","0.2.0","0.2.1","0.20.0","0.21.0","0.22.0","0.23.0","0.23.1","0.23.2","0.3.0","0.4.0","0.5.0","0.6.0","0.6.1","0.6.2","0.6.3","0.7.0","0.7.1","0.7.2","0.8.0","0.8.2","0.9.0","0.9.1"]},{"source":"osv","ecosystem":"PyPI","package":"py-rattler","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.24.0"}]}],"versions":["0.1.0","0.1.1","0.1.2","0.10.0","0.11.0","0.12.0","0.13.0","0.13.1","0.14.0","0.15.0","0.16.0","0.17.0","0.18.0","0.19.0","0.2.0","0.2.1","0.20.0","0.21.0","0.22.0","0.23.0","0.23.1","0.23.2","0.3.0","0.4.0","0.5.0","0.6.0","0.6.1","0.6.2","0.6.3","0.7.0","0.7.1","0.7.2","0.8.0","0.8.2","0.9.0","0.9.1"]}],"products":[{"vendor":"conda","product":"py-rattler"},{"vendor":"conda","product":"rattler"},{"vendor":"conda","product":"rattler-build"},{"vendor":"prefix-dev","product":"pixi"}],"references":[{"url":"https://github.com/conda/rattler/security/advisories/GHSA-q53q-5r4j-5729","tags":["x_refsource_CONFIRM","advisory","web"]},{"url":"https://github.com/conda/rattler/commit/4f06eca89aa13209774d26dbac077c41b72bac7c","tags":["x_refsource_MISC","fix"]},{"url":"https://github.com/conda/rattler/pull/2445","tags":["web"]},{"url":"https://github.com/advisories/GHSA-q53q-5r4j-5729","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47425.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-47425","tags":["advisory"]},{"url":"https://github.com/conda/rattler","tags":["package"]},{"url":"https://pypi.org/project/py-rattler","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-47425","title":"Rattler vulnerable to entry-point path traversal in noarch:python install (arbitrary file write)","description":"Rattler is a library that provides common functionality used within the conda ecosystem. Prior to version 0.43.2, `EntryPoint::FromStr` in `rattler_conda_types` performs only `.trim()` on the `command` field before the linker joins it onto the install prefix and writes an executable Python script. A malicious `noarch:python` package can ship an `info/link.json` with an entry-point name containing `..`, `/`, `\\`, or an absolute path; the resulting file is written outside the prefix (or clobbers an existing in-prefix entry-point such as `bin/pip`) with mode `0o775` on Unix and a copied launcher `.exe` on Windows. This affects the default install path of `pixi install`, `mamba install` via py-rattler, `rattler-build`, and any other consumer of the `rattler` install crate; no flag or post-link-script opt-in is involved. Version 0.43.2 contains a fix for the issue.","status":"published","published":"2026-07-21T17:47:40.995Z","modified":"2026-07-23T14:20:36.413Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"}],"cwes":["CWE-22","CWE-73"],"updated_at":"2026-11-02T13:36:40.478484Z"}],"euvd":[{"id":"EUVD-2026-46348","description":"Rattler is a library that provides common functionality used within the conda ecosystem. Prior to version 0.43.2, `EntryPoint::FromStr` in `rattler_conda_types` performs only `.trim()` on the `command` field before the linker joins it onto the install prefix and writes an executable Python script. A malicious `noarch:python` package can ship an `info/link.json` with an entry-point name containing `..`, `/`, `\\`, or an absolute path; the resulting file is written outside the prefix (or clobbers an existing in-prefix entry-point such as `bin/pip`) with mode `0o775` on Unix and a copied launcher `.exe` on Windows. This affects the default install path of `pixi install`, `mamba install` via py-rattler, `rattler-build`, and any other consumer of the `rattler` install crate; no flag or post-link-script opt-in is involved. Version 0.43.2 contains a fix for the issue.","status":"published","published":"2026-07-21T17:47:40Z","modified":"2026-07-23T14:20:36Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T18:19:44.021778Z"}],"ghsa":[{"id":"GHSA-q53q-5r4j-5729","title":"rattler has an entry-point path traversal in noarch:python install (arbitrary file write)","description":"## Summary\n\n`EntryPoint::FromStr` in `rattler_conda_types` performs only `.trim()` on the `command` field before the linker joins it onto the install prefix and writes an executable Python script. A malicious `noarch:python` package can ship an `info/link.json` with an entry-point name containing `..`, `/`, `\\`, or an absolute path; the resulting file is written outside the prefix (or clobbers an existing in-prefix entry-point such as `bin/pip`) with mode `0o775` on Unix and a copied launcher `.exe` on Windows. This affects the default install path of `pixi install`, `rattler-build`, some methods in `py-rattler`, and any other consumer of the `rattler` install crate; no flag or post-link-script opt-in is involved.\n\nResolved in https://github.com/conda/rattler/pull/2445, released in rattler 0.43.2.\n\n## Affected\n\n- Repository: https://github.com/conda/rattler\n- Commit: `a0e61a33da8b9d6de712fab2a879fa9da977e6e3` (HEAD at audit time, 2026-05-13 release)\n- Downstream consumers reached through the same code path: `prefix-dev/pixi` @ `e640477`\n- pixi 0.69.0 and rattler-build 0.65.0 fix this issue\n\n## Researcher\n\nBerkant Koc \u003cme@berkoc.com\u003e\nPGP: 0C588DFD76204987284213EA0AC529C41F8AA5D6","status":"published","published":"2026-06-01T14:15:31Z","modified":"2026-06-09T11:52:09Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U","level":"medium"}],"cwes":["CWE-22","CWE-73"],"updated_at":"2026-11-02T14:40:23.739691Z"}],"nvd":[{"id":"CVE-2026-47425","description":"Rattler is a library that provides common functionality used within the conda ecosystem. Prior to version 0.43.2, `EntryPoint::FromStr` in `rattler_conda_types` performs only `.trim()` on the `command` field before the linker joins it onto the install prefix and writes an executable Python script. A malicious `noarch:python` package can ship an `info/link.json` with an entry-point name containing `..`, `/`, `\\`, or an absolute path; the resulting file is written outside the prefix (or clobbers an existing in-prefix entry-point such as `bin/pip`) with mode `0o775` on Unix and a copied launcher `.exe` on Windows. This affects the default install path of `pixi install`, `mamba install` via py-rattler, `rattler-build`, and any other consumer of the `rattler` install crate; no flag or post-link-script opt-in is involved. Version 0.43.2 contains a fix for the issue.","status":"published","published":"2026-07-21T18:17:01.13Z","modified":"2026-07-23T18:04:31.947Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/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","level":"medium","assessor":"secondary"}],"cwes":["CWE-22","CWE-73"],"updated_at":"2026-11-02T14:12:31.394335Z"}],"osv":[{"id":"CVE-2026-47425","title":"Rattler vulnerable to entry-point path traversal in noarch:python install (arbitrary file write)","description":"Rattler is a library that provides common functionality used within the conda ecosystem. Prior to version 0.43.2, `EntryPoint::FromStr` in `rattler_conda_types` performs only `.trim()` on the `command` field before the linker joins it onto the install prefix and writes an executable Python script. A malicious `noarch:python` package can ship an `info/link.json` with an entry-point name containing `..`, `/`, `\\`, or an absolute path; the resulting file is written outside the prefix (or clobbers an existing in-prefix entry-point such as `bin/pip`) with mode `0o775` on Unix and a copied launcher `.exe` on Windows. This affects the default install path of `pixi install`, `mamba install` via py-rattler, `rattler-build`, and any other consumer of the `rattler` install crate; no flag or post-link-script opt-in is involved. Version 0.43.2 contains a fix for the issue.","status":"published","published":"2026-07-21T17:47:40.995Z","modified":"2026-10-28T02:30:30.500843776Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-22","CWE-73"],"updated_at":"2026-11-02T15:45:06.231145Z"},{"id":"GHSA-q53q-5r4j-5729","title":"rattler has an entry-point path traversal in noarch:python install (arbitrary file write)","description":"## Summary\n\n`EntryPoint::FromStr` in `rattler_conda_types` performs only `.trim()` on the `command` field before the linker joins it onto the install prefix and writes an executable Python script. A malicious `noarch:python` package can ship an `info/link.json` with an entry-point name containing `..`, `/`, `\\`, or an absolute path; the resulting file is written outside the prefix (or clobbers an existing in-prefix entry-point such as `bin/pip`) with mode `0o775` on Unix and a copied launcher `.exe` on Windows. This affects the default install path of `pixi install`, `rattler-build`, some methods in `py-rattler`, and any other consumer of the `rattler` install crate; no flag or post-link-script opt-in is involved.\n\nResolved in https://github.com/conda/rattler/pull/2445, released in rattler 0.43.2.\n\n## Affected\n\n- Repository: https://github.com/conda/rattler\n- Commit: `a0e61a33da8b9d6de712fab2a879fa9da977e6e3` (HEAD at audit time, 2026-05-13 release)\n- Downstream consumers reached through the same code path: `prefix-dev/pixi` @ `e640477`\n- pixi 0.69.0 and rattler-build 0.65.0 fix this issue\n\n## Researcher\n\nBerkant Koc \u003cme@berkoc.com\u003e\nPGP: 0C588DFD76204987284213EA0AC529C41F8AA5D6","status":"published","published":"2026-06-01T14:15:31Z","modified":"2026-07-13T16:43:29.179358699Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U","level":"medium"}],"cwes":["CWE-22","CWE-73"],"updated_at":"2026-11-02T15:46:54.055966Z"},{"id":"PYSEC-2026-2971","title":"rattler has an entry-point path traversal in noarch:python install (arbitrary file write)","description":"## Summary\n\n`EntryPoint::FromStr` in `rattler_conda_types` performs only `.trim()` on the `command` field before the linker joins it onto the install prefix and writes an executable Python script. A malicious `noarch:python` package can ship an `info/link.json` with an entry-point name containing `..`, `/`, `\\`, or an absolute path; the resulting file is written outside the prefix (or clobbers an existing in-prefix entry-point such as `bin/pip`) with mode `0o775` on Unix and a copied launcher `.exe` on Windows. This affects the default install path of `pixi install`, `rattler-build`, some methods in `py-rattler`, and any other consumer of the `rattler` install crate; no flag or post-link-script opt-in is involved.\n\nResolved in https://github.com/conda/rattler/pull/2445, released in rattler 0.43.2.\n\n## Affected\n\n- Repository: https://github.com/conda/rattler\n- Commit: `a0e61a33da8b9d6de712fab2a879fa9da977e6e3` (HEAD at audit time, 2026-05-13 release)\n- Downstream consumers reached through the same code path: `prefix-dev/pixi` @ `e640477`\n- pixi 0.69.0 and rattler-build 0.65.0 fix this issue\n\n## Researcher\n\nBerkant Koc \u003cme@berkoc.com\u003e\nPGP: 0C588DFD76204987284213EA0AC529C41F8AA5D6","status":"published","published":"2026-07-13T15:35:23.329275Z","modified":"2026-07-13T16:32:07.50466462Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U","level":"medium"}],"updated_at":"2026-11-02T15:52:56.429374Z"}]}}