CVE-2026-87910

Katalog CVE

CVSS 5.7 · Medium EPSS 0,50%

Kerentanan Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'). Skor CVSS 4.0 5.7 (Medium) menurut python.org.

Deskripsi (NVD)

When tarfile extracts a link on a system that doesn't support links, it falls back to extracting a member from the archive. In this case, the filter function is run twice: once for the extracted member, and once with name set to the location of the link. For one of the calls, the return value was ignored. Instead, the member should be skipped if either call returns None.

Rincian

Terbit di NVD

11 September 2026

Terakhir diubah

3 Oktober 2026

Status NVD

Awaiting Analysis

CVSS 4.0

5.7 (Medium), sumber python.org
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/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 · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-59: Improper Link Resolution Before File Access ('Link Following')

EPSS (30 hari)

0,50% peluang dieksploitasi; lebih tinggi dari 41,1% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/python/cpython/commit/2eb0c2f1dc71847731b6ab30aebefd058d482a7f
• https://github.com/python/cpython/commit/3105a3498aaf681ce128cf5baf83c2e5574267c5
• https://github.com/python/cpython/commit/764fd0af8d9e19d3684a58d2e58bf770f0605036
• https://github.com/python/cpython/commit/9c17bace90f88dfba6d0e2fe23c8e7ae35f83955
• https://github.com/python/cpython/commit/a4919937a4e1e69a0d178909c6f20557eca5d1d0
• https://github.com/python/cpython/commit/c1f106d240c4ffcb3608ed0a20e8aba6c865f6d3
• https://github.com/python/cpython/commit/d9565e54b1fc6d63c5be9afd58114499128fa57b
• https://github.com/python/cpython/commit/fb2f0bbc3b35264f09cc2cb2934b7987527a6bc2
• https://github.com/python/cpython/issues/157265
• https://github.com/python/cpython/pull/157266
• https://mail.python.org/archives/list/security-announce@python.org/thread/57TBTLL2W6APMZR3A25B2YV7GL3EPTDJ/
• http://www.openwall.com/lists/oss-security/2026/09/11/8