onyx --cves cve-2026-3087
CVE-2026-3087
- score
- 0.4
- cvss
- 7.5
- epss
- 0.7%
- published
- 2026-04-27
- kev added
- —
- first seen
Python shutil.unpack_archive() on Windows contains a path traversal vulnerability caused by extraction of ZIP archives with absolute Windows paths containing drives, letting attackers write files outside the target directory, exploit requires crafted archive.
Timeline
How this CVE moved toward exploitation. Chart: last 30 days — trend score, EPSS, community mentions per day; hover the event lane.
- Published
- Tracked by Onyx
- Public PoC
Exploit availability
Public PoC flagged by vulnx; no direct exploit link among the citations.
Weaknesses
References 14
- https://github.com/python/cpython/commit/1071290169f85c09cf767c1099564a9426cdc7e8
- https://github.com/python/cpython/issues/146581
- https://github.com/python/cpython/commit/ab5ef98af693bded74a738570e81ea70abef2840
- https://github.com/python/cpython/commit/65b255416ae217bf0e22085be3c1976cea18bd8c
- https://github.com/python/cpython/commit/8e13025747e1ca72e86d1f35637123f9c306f0cb
- https://github.com/python/cpython/commit/ba0aca3bffce431fe2fbd53ca4cd6a717a2e2c19
- https://github.com/python/cpython/commit/a6650a2cdf0c49fb8ce0c982903aa2aa274beefe
- https://github.com/python/cpython/pull/146591
- https://mail.python.org/archives/list/security-announce@python.org/thread/X6FXE5C6KDKOVNX3EC3DWD5RUPFWOZA4/
- http://www.openwall.com/lists/oss-security/2026/04/28/9
- https://github.com/python/cpython/commit/b01e594fbe754a960212f908d047294e880b52fd
- https://github.com/python/cpython/commit/fc829e88753858c8ac669594bf0093f44948c0f4
- https://github.com/python/cpython/commit/8ee6aff14054b37b53e47194a2fa313e98163c94
- https://github.com/python/cpython/commit/7ef7dd0a74f47facd1fadcbc77f8fb03beb5eb4d